America's Best Ambulatory Surgery Centers 2021

America's Best Ambulatory Surgery Centers 2021

Big, busy hospitals can be lifesavers—when you need them. But when outpatient care is possible, patients often prefer ambulatory care centers: they allow you to have procedures done after business hours, and closer to home.

Ambulatory surgical centers performed more than half of all outpatient surgeries in 2017, according to Bain research, and that percentage is already expanding. Orthopedic, cardio and spinal surgeries are expected to drive the growth.

To help our readers make knowledgeable choices when they seek care for themselves or loved ones, Newsweek partnered with respected global research firm Statista to name America's Best Ambulatory Surgery Centers 2021. This list spotlights the 400 best centers in the 25 states that have the most facilities. (They are: California, Florida, Illinois, North Carolina, Texas, Colorado, Georgia, Missouri, Maryland, Michigan, New Jersey, Oregon, Pennsylvania, Louisiana, Ohio, Wisconsin, Washington, Minnesota, Arizona, Mississippi, New York, South Carolina, Indiana, Kansas and Tennessee.)

Our experts and our survey-participants assessed quality of care, performance data and peer recommendations relative to in-state competition. they also took into account how well facilities were responding to the threat of COVID-19.

Even after you've decided to undergo a procedure, it can be stressful to choose a facility. Your health, safety and quality of life are important to you—and to everyone who cares about and depends on you. We hope these trustworthy, carefully vetted rankings of America's Best Ambulatory Surgery Centers help you make choices with confidence.

BASC 2021 Nancy Cooper Signature
1Mayo Clinic - Building Scottsdale84.2%ScottsdaleArizona
2Arizona Digestive Health - Scottsdale Gelzayd75.9%ScottsdaleArizona
3Adobe Surgery Center, PC75.7%TucsonArizona
4Surgery Center of Gilbert74.8%MesaArizona
1Sutter Health - Surgery Center Palo Alto92.0%Palo AltoCalifornia
2Surgical Care Affiliates - University Ambulatory Surgery Center90.6%San DiegoCalifornia
3Surgical Care Affiliates - UCSD Center for Surgery of Encinitas89.8%EncinitasCalifornia
4UCLA Health - Ambulatory Surgery Center Westwood89.6%Los AngelesCalifornia
5Cedars Sinai - 90210 Surgery Medical Center86.4%Beverly HillsCalifornia
6Sutter Health - Surgery Center Mountain View86.2%Mountain ViewCalifornia
7Surgical Care Affiliates - Surgical Center of San Diego85.7%San DiegoCalifornia
8436 Beverly Hills Surgery Center85.1%Beverly HillsCalifornia
9Sutter Health - Surgery Center Fremont84.9%FremontCalifornia
10Surgical Care Affiliates - MemorialCare Surgical Center Laguna Woods 84.1%Laguna HillsCalifornia
11Surgical Care Affiliates - North Coast Surgery Center83.9%OceansideCalifornia
12Hoag Endoscopy Center83.9%Newport BeachCalifornia
13Surgical Care Affiliates - San Diego Endoscopy Center83.3%San DiegoCalifornia
14Surgical Care Affiliates - Barranca Surgery Center82.6%IrvineCalifornia
15Sutter Health - Fort Sutter Surgery Center82.3%SacramentoCalifornia
16Scripps - Encinitas Surgery Center82.2%EncinitasCalifornia
17Scripps - Mercy Surgery Pavilion81.9%San DiegoCalifornia
18Surgical Care Affiliates - MemorialCare Surgical Center at Orange Coast81.8%Fountain ValleyCalifornia
19 Surgical Care Affiliates - MemorialCare Surgical Center Saddleback 81.7%Laguna HillsCalifornia
20Sutter Health - Surgery Center San Carlos81.3%San CarlosCalifornia
21Surgical Care Affiliates - Outpatient Surgery Center of La Jolla81.0%La JollaCalifornia
22Newport Beach Surgery Center80.7%Newport BeachCalifornia
23Advanced Eye Medical Group - Dr. Ghosheh Advanced Eye Medical80.4%Mission ViejoCalifornia
24Surgical Care Affiliates - Inland Surgery Center80.4%RedlandsCalifornia
25Surgical Care Affiliates - Grossmont Surgery Center80.2%La MesaCalifornia
26Hoag Orthopedic Institute - Main Street Specialty Surgery Center80.1%OrangeCalifornia
27Premier Surgery Center80.0%ConcordCalifornia
28Huntington Ambulatory Surgery Center80.0%PasadenaCalifornia
29Mid Valley Surgery Center79.2%OntarioCalifornia
30United Gastrodiagnostics - Orange - Gastroenterology79.1%OrangeCalifornia
31Fremont Surgery Center78.8%FremontCalifornia
32Eye Surgery Center of San Francisco78.6%San FranciscoCalifornia
33Valley Surgery Center78.5%ModestoCalifornia
34Crown Valley Outpatient Surgical Center78.4%Mission ViejoCalifornia
35Southern California Medical Gastroenterology Group - Santa Monica78.2%Santa MonicaCalifornia
36La Peer Surgery Center78.2%Beverly HillsCalifornia
37Sutter Health - Santa Rosa Surgery and Endoscopy Center77.9%Santa RosaCalifornia
38Sutter Health - North Bay Regional Surgery Center77.8%NovatoCalifornia
39Watsonville Surgeons Group - Central Coast Surgery Center77.7%FreedomCalifornia
40Sutter Health - Sierra Surgery Center77.6%RosevilleCalifornia
41Specialty Surgical Center of Arcadia77.5%ArcadiaCalifornia
42NSC Management Company - Endeavor Surgical Center77.5%NorthridgeCalifornia
43Carlsbad Surgery Center77.3%CarlsbadCalifornia
44Sutter Health - Capitol City Surgery Center77.3%SacramentoCalifornia
45Cedars Sinai - Endoscopy Center77.2%Beverly HillsCalifornia
46Sutter Health - Auburn Surgery Center77.0%AuburnCalifornia
47Forest Surgery Center77.0%San JoseCalifornia
48Sutter Health - Santa Barbara Endoscopy Center77.0%Santa BarbaraCalifornia
49Associated Gastroenterology Medical Group - Endoscopy Center76.9%AnaheimCalifornia
50Surgical Care Affiliates - San Luis Obispo Surgery Center76.9%San Luis ObispoCalifornia
51Folsom Sierra Endoscopy Center76.9%FolsomCalifornia
52Aspen Surgery Center76.8%Walnut CreekCalifornia
53Washington Outpatient Surgery Center76.8%FremontCalifornia
54Advanced Diagnostic & Surgical Center76.6%AlhambraCalifornia
55Posada Surgery Center76.5%TempletonCalifornia
56Archibald Surgery Center76.4%Rancho CucamongaCalifornia
57Surgical Care Affiliates - La Veta Surgical Center76.4%OrangeCalifornia
58Surgical Care Affiliates - Golden Triangle Surgicenter76.4%MurrietaCalifornia
59North Orange County Surgery Center76.2%AnaheimCalifornia
60Aspen Surgery Center76.1%Simi ValleyCalifornia
61Eye MD & Laser Surgery Center76.1%OaklandCalifornia
62Inland Valley Surgery Center76.0%PomonaCalifornia
63Airport Endoscopy Center76.0%Los AngelesCalifornia
64Specialty Surgical Center of Irvine76.0%IrvineCalifornia
65Surgical Care Affiliates - Glenwood Surgery Center75.8%RiversideCalifornia
66Waverley Surgery Center75.8%Palo AltoCalifornia
67Sutter Health - Briggsmore Specialty Surgery Care Center75.7%ModestoCalifornia
68Four Seasons Surgery Centers of Ontario75.6%OntarioCalifornia
69Sutter Health - Otay Lakes Surgery Center75.6%Chula VistaCalifornia
70Salinas Endoscopy Center75.4%SalinasCalifornia
71Sutter Health - Roseville Endoscopy Center75.4%RosevilleCalifornia
72Monterey Peninsula Surgery Centers75.4%MontereyCalifornia
73Mirage Endoscopy Center75.4%Rancho MirageCalifornia
74Pacific Ambulatory Surgery Center75.3%AlhambraCalifornia
75Greater Long Beach Endoscopy Center75.2%Long BeachCalifornia
76Sutter Health - Amador Surgery Center75.1%JacksonCalifornia
77San Antonio Ambulatory Surgical Center74.9%UplandCalifornia
78South Bay Gastroenterology - Endoscopy Center74.9%TorranceCalifornia
79Southern California Stone Center74.9%EncinoCalifornia
80Mission Valley Eye Medical Surgical Center74.6%FremontCalifornia
1Littleton Day Surgery Center78.3%LittletonColorado
2Health One - Rose Surgical Center77.4%DenverColorado
3Grand Valley Surgical Center76.4%Grand JunctionColorado
4Surgical Care Affiliates – Denver Surgery Center75.8%DenverColorado
5Madison Street Surgery Center75.8%DenverColorado
6Arapahoe Surgicenter75.5%LittletonColorado
7Gastroenterology of the Rockies - Denver West Endoscopy Center75.3%LakewoodColorado
8Boulder Community Health - Endoscopy Center of the Rockies Longmont74.4%LongmontColorado
9Boulder Community Health - Endoscopy Center of the Rockies Lafayette74.3%LafayetteColorado
10Sky Ridge Surgical Center74.1%Lone TreeColorado
1Surgical Care Affiliates - Boca Raton Outpatient Surgery & Laser Center93.2%Boca RatonFlorida
2Florida Medical Clinic - Florida Medical Clinic North Tampa83.1%TampaFlorida
3Coral Gables Surgery Center82.9%MiamiFlorida
4USF Health - Ambulatory Surgery Center80.7%TampaFlorida
5University of Miami Health System - Bascom Palmer Eye Institute80.1%NaplesFlorida
6Bayview Surgery Center80.1%SarasotaFlorida
7Mayo Clinic Jacksonville ASC79.5%JacksonvilleFlorida
8Surgical Care Affiliates - Orlando Center for Outpatient Surgery79.2%OrlandoFlorida
9United Surgical Partners International - Premier Surgery Center of Sarasota79.2%SarasotaFlorida
10Ambulatory Surgery Center Tampa79.0%TampaFlorida
11Baptist Health South Florida - Endoscopy Center Galloway South79.0%MiamiFlorida
12New Tampa Surgery Center78.8%Wesley ChapelFlorida
13Bascom Palmer Surgery Center - Palm Beach Gardens78.2%Palm Beach GardensFlorida
14BayCare - Surgery Center (Trinity)78.1%TrinityFlorida
15Surgical Care Affiliates - Alliance Surgical Center78.0%Lake MaryFlorida
16SurgCenter Pinellas77.8%LargoFlorida
17Intercoastal Medical Group - Ambulatory Surgery Center Sarasota77.7%SarasotaFlorida
18Surgical Care Affiliates - Sand Lake Surgery Center77.6%OrlandoFlorida
19Central Florida SurgiCenter77.5%LakelandFlorida
20Surgical Care Affiliates - Panama City Surgery Center 77.5%Panama CityFlorida
21Citrus Ambulatory Surgery Center77.2%OrlandoFlorida
22Advanced Surgery Center of Palm Beach County76.9%Lake WorthFlorida
23Surgical Care Affiliates - Maitland Surgery Center76.9%MaitlandFlorida
24The Outpatient Center of Delray76.9%DelrayFlorida
25Martin Health System - Tradition Surgery Center76.9%Port St. LucieFlorida
26Lakeland Surgical & Diagnostic Center - Griffin Campus76.6%LakelandFlorida
27Florida Medical Clinic - Florida Medical Clinic Zephyrhills76.5%ZephyrhillsFlorida
28Surgery Center at Coral Springs76.4%Coral SpringsFlorida
29The Surgery Center at TGH Brandon Healthplex76.1%TampaFlorida
30Broward Specialty Surgical Center75.8%HollywoodFlorida
31The Center of Surgical Excellence75.6%VeniceFlorida
32Memorial Healthcare System - Same Day Surgery Center75.0%Pembroke PinesFlorida
33Bradenton Surgery Center75.0%BradentonFlorida
34Citrus Endoscopy & Surgery Center74.5%Crystal RiverFlorida
35Bayside Ambulatory Surgery Center74.4%MiamiFlorida
1Emory Healthcare - Emory Clinic at 1365 Clifton Rd84.5%AtlantaGeorgia
2Emory Healthcare - Emory Ambulatory Surgery Center83.2%AtlantaGeorgia
3Surgery Center of Athens78.5%AthensGeorgia
4Digestive Healthcare of Georgia - Atlanta77.7%AtlantaGeorgia
5Consultative Gastroenterology77.6%AtlantaGeorgia
6Surgical Care Affiliates - Perimeter Surgery Center 76.2%AtlantaGeorgia
7Atlanta Gastroenterology - Midtown Endoscopy75.6%AtlantaGeorgia
8Southern Crescent Endoscopy Suite75.3%StockbridgeGeorgia
9Atlanta Gastroenterology - Northern Crescent Endoscopy74.4%AtlantaGeorgia
1Surgical Care Affiliates - Northwest Surgicare80.1%Arlington HeightsIllinois
2RUSH SurgiCenter79.7%ChicagoIllinois
325 East Same Day Surgery79.0%ChicagoIllinois
4Surgical Center of DuPage Medical Group78.9%LombardIllinois
5Northwest Community Healthcare - Day Surgery Center78.2%Arlington HeightsIllinois
6Surgical Care Affiliates - Golf Surgical Center77.5%Des PlainesIllinois
7Illinois Gastroenterology Group - Northwest Endoscopy Center77.3%Arlington HeightsIllinois
8Illinois Gastroenterology Group - Elgin Gastroenterology Endoscopy Center77.2%ElginIllinois
9Hoffman Estates Surgery Center77.2%Hoffman EstatesIllinois
10Surgical Care Affiliates - Center for Minimally Invasive Surgery76.9%MokenaIllinois
11North Shore Endoscopy Center76.5%Lake BluffIllinois
12Tinley Woods Surgery Center75.4%Tinley ParkIllinois
13Silver Cross Surgery Center75.2%New LenoxIllinois
14Good Samaritan Surgery Center74.9%Mount VernonIllinois
1Unity Surgical Center78.3%LafayetteIndiana
2IU Health - East Washington Surgery Center78.1%IndianapolisIndiana
3Parkview Health - Inverness Surgery Center77.5%Fort WayneIndiana
4Franciscan Health - Surgery Center77.1%IndianapolisIndiana
5Carmel Ambulatory Surgery Center76.3%CarmelIndiana
6United Surgical Partners International - Indiana Specialty Surgery Center75.9%BloomingtonIndiana
1Surgical Care Affiliates - KU MedWest Outpatient Surgery Center 76.7%ShawneeKansas
2AdventHealth - Surgery Center Shawnee Mission75.7%Shawnee MissionKansas
3Gastrointestinal Associates - Endoscopic Imaging Center74.8%Overland ParkKansas
4Mid-America Surgery Institute74.7%Overland ParkKansas
1Lake Surgery Center80.1%Baton RougeLouisiana
2Advanced Surgical Care of Baton Rouge79.5%Baton RougeLouisiana
3Ochsner Health - Outpatient Surgery Suite79.0%SlidellLouisiana
4Lafayette General Endoscopy Center76.9%LafayetteLouisiana
5Oil Center Surgical Plaza76.6%LafayetteLouisiana
6The Acadiana Surgery Center76.5%New IberiaLouisiana
7Tenet Health - Our Lady of the Lake Pontchartrain Surgery Center74.7%CovingtonLouisiana
1Johns Hopkins Endoscopy & Surgery Center82.7%ColumbiaMaryland
2Anne Arundel Gastroenterology Associates - AAMC Pavilion - Pasadena80.1%PasadenaMaryland
3GastroIntestinal Diagnostic Center79.6%BaltimoreMaryland
4Johns Hopkins Health Care & Surgery Center - White Marsh79.4%NottinghamMaryland
5University of Maryland Medical Center - Ambulatory Surgery Center79.0%ColumbiaMaryland
6Digestive Disease Associates - Howard County Gastrointestinal Diagnostic Center78.6%ColumbiaMaryland
7Privia Medical Group - Advanced Surgery78.3%RockvilleMaryland
8Dr. Russell Schub - Advanced Endoscopy Center77.3%ColumbiaMaryland
9Leonardtown Surgery Center76.0%LeonardtownMaryland
10Maple Lawn Surgery Center75.6%FultonMaryland
1TruVista Surgery Center77.8%TroyMichigan
2Lakes Surgery Center76.7%West BloomfieldMichigan
3Novi Surgery Center76.0%NoviMichigan
4Michigan Institute for Advanced Surgery75.5%Lake OrionMichigan
5Muskegon Surgery Center75.5%MuskegonMichigan
6Copper Ridge - Northwest Michigan Surgery Center75.4%Traverse CityMichigan
7West Michigan Surgery Center74.8%Big RapidsMichigan
1Surgical Care Affiliates - Maplewood Surgery Center80.2%MaplewoodMinnesota
2M Health - Fairview Clinics and Surgery Center - Minneapolis78.6%MinneapolisMinnesota
3Surgical Care Affiliates - St. Cloud Surgical Center78.3%St. CloudMinnesota
4Surgical Care Affiliates - Ridges Surgery Center77.9%BurnsvilleMinnesota
5MNGI Digestive Health - Plymouth Endoscopy Center & Clinic76.3%PlymouthMinnesota
6M Health - Fairview Clinics and Surgery Center - Maple Grove75.8%Maple GroveMinnesota
7MNGI Digestive Health - Bloomington Endoscopy Center & Clinic75.8%BloomingtonMinnesota
8North Memorial Ambulatory Surgery Center of Maple Grove75.4%Maple GroveMinnesota
9MNGI Digestive Health - Eagan Endoscopy Center & Clinic75.2%EaganMinnesota
10Brainerd Lakes Surgery Center75.2%BaxterMinnesota
11Mankato Clinic - Endoscopy Center74.6%MankatoMinnesota
12Surgical Care Affiliates - WestHealth Surgery Center 74.5%PlymouthMinnesota
1St. Dominic Ambulatory Surgery Center80.5%JacksonMississippi
2Desoto Surgery Center79.1%SouthavenMississippi
3Gastrointestinal Associates - Endoscopy Center Vicksburg75.8%VicksburgMississippi
1The Surgical Center at Columbia Orthopaedic Group86.7%ColumbiaMissouri
2St. Louis Surgical Center76.8%Creve CoeurMissouri
3Mid America Surgery Center75.8%ChesterfieldMissouri
4Saint Luke's - East Hospital Surgery Center75.0%Lee's SummitMissouri
5Surgery Center of Columbia74.5%ColumbiaMissouri
1Mercer County Surgery Center84.4%LawrencevilleNew Jersey
2RWJBarnabas Health - Ambulatory Surgical Pavilion at Robert Wood Johnson82.1%New BrunswickNew Jersey
3United Surgical Partners International - Hackensack Endoscopy Center81.9%HackensackNew Jersey
4Advanced Endoscopy & Surgical Center81.2%EatontownNew Jersey
5Surgical Care Affiliates - Raritan Valley Surgery Center81.1%SomersetNew Jersey
6Rockland Surgical Project80.9%RamseyNew Jersey
7Hudson Crossing Surgery Center79.5%Fort LeeNew Jersey
8Virtua Health - Center for Surgery Washington Township79.4%SewellNew Jersey
9Surgical Care Affiliates - Surgical Center of South Jersey79.3%Mount LaurelNew Jersey
10The Endo Center at Voorhees79.0%VoorheesNew Jersey
11Surgical Care Affiliates - Emmaus Surgical Center78.9%HackettstownNew Jersey
12South Jersey Musculoskeletal Institute78.7%TurnersvilleNew Jersey
13Saint Peter's Healthcare System - CARES Surgicenter78.7%New BrunswickNew Jersey
14Virtua Health - Memorial Ambulatory Surgery Center78.7%Mount HollyNew Jersey
15Surgical Care Affiliates - Surgicare of Central Jersey78.6%WatchungNew Jersey
16Northfield Surgical Center78.5%West OrangeNew Jersey
17Somerset Ambulatory Surgical Center78.4%SomervilleNew Jersey
18Union County Surgery Center78.1%UnionNew Jersey
19Summit Surgical Center78.1%VoorheesNew Jersey
20Virtua Health - Jersey Shore Ambulatory Surgical Center78.0%Somers PointNew Jersey
21Virtua Health - Gastro Surgi Center of New Jersey77.4%MountainsideNew Jersey
22Millennium Eye Care - Freehold76.8%FreeholdNew Jersey
23Gastroenterology Diagnostics of Northern New Jersey76.6%Woodland ParkNew Jersey
24Wayne Surgical Center76.5%WayneNew Jersey
25Virtua Health - Center for Ambulatory and Minimally Invasive Surgery76.2%EatontownNew Jersey
26Wills Eye Surgery Center in Cherry Hill76.1%Cherry HillNew Jersey
27East Brunswick Surgery Center75.1%East BrunswickNew Jersey
28Gloucester County Surgery Center74.9%Mullica HillNew Jersey
1Gramercy Surgery Center - New York83.9%New YorkNew York
2Gramercy Surgery Center- Queens83.8%FlushingNew York
3Mount Sinai - East Side Endoscopy81.0%New YorkNew York
4Center for Ambulatory Surgery Buffalo80.2%BuffaloNew York
5Buffalo Surgery Center79.7%AmherstNew York
6North Shore Surgi Center77.6%SmithtownNew York
7Manhattan Endoscopy77.0%New YorkNew York
8Brooklyn Surgery Center76.8%BrooklynNew York
9Carnegie Hill Endoscopy74.2%New YorkNew York
1Capital City Surgery Center83.5%RaleighNorth Carolina
2Surgical Care Affiliates - Charlotte Surgery Center - Museum Campus83.2%CharlotteNorth Carolina
3NHRMC Physician Group - Endoscopy Center80.0%WilmingtonNorth Carolina
4Atrium Health - Carolinas Gastroenterology Center - Medical Center Plaza80.0%CharlotteNorth Carolina
5Duke Health - Duke Triangle Endoscopy Center79.7%DurhamNorth Carolina
6Atrium Health - Carolina Endoscopy Centers Pineville79.1%CharlotteNorth Carolina
7Gastroenterology Associates of the Piedmont Salem78.2%Winston SalemNorth Carolina
8Wake Forest Endoscopy Center78.1%Wake ForestNorth Carolina
9Novant Health - Huntersville Outpatient Surgery Center78.0%HuntersvilleNorth Carolina
10Novant Health - Ballantyne Outpatient Surgery Center77.9%CharlotteNorth Carolina
11Surgical Care Affiliates - Blue Ridge Surgery Center77.4%RaleighNorth Carolina
12Blue Ridge Healthcare Medical Group - Carolina Digestive Care77.4%MorgantonNorth Carolina
13Duke Health - Davis Ambulatory Surgical Center77.2%DurhamNorth Carolina
14Cleveland Ambulatory Services77.0%ShelbyNorth Carolina
15UNC REX Healthcare - Surgery Center of Cary76.1%CaryNorth Carolina
16Carolina Digestive Health Associates - Charlotte Endoscopy Center76.0%CharlotteNorth Carolina
17East Carolina Gastroenterology Endoscopy Center75.7%JacksonvilleNorth Carolina
18Raleigh Endoscopy Center74.9%CaryNorth Carolina
1Cleveland Clinic - Wooster Milltown Specialty and Surgery Center90.5%WoosterOhio
2Cleveland ASC - Cleveland Surgical Suites85.7%Richmond HeightsOhio
3Chagrin Surgery Center82.6%BeachwoodOhio
4Surgical Care Affiliates - Dublin Surgery Center79.7%DublinOhio
5University Endoscopy Center79.4%CincinnatiOhio
6Central Ohio Surgical Institute79.2%New AlbanyOhio
7Cleveland Eye and Laser Surgery Center78.5%Fairview ParkOhio
8Anderson Endoscopy Center77.3%CincinnatiOhio
9Cleveland Center For Digestive Health & Endoscopy77.1%BeachwoodOhio
10Gandhi Gi Group - Colonoscopy and Endoscopy Center76.7%DaytonOhio
11The Toledo Clinic - Outpatient Surgery Center - Main Campus76.5%ToledoOhio
12UH - Suburban Health Center76.2%South EuclidOhio
13Findlay Surgery Center75.7%FindlayOhio
14Digestive Health Center75.5%AkronOhio
15Medina-Summit Ambulatory Surgery Center - The Medina Surgery Center75.4%MedinaOhio
16Central Ohio Endoscopy Center75.3%ColumbusOhio
17Ohio Valley Ambulatory Surgery Center74.6%BelpreOhio
1Surgical Care Affiliates - Northbank Surgical Center80.6%SalemOregon
2Surgical Care Affiliates - Grants Pass Surgery Center80.1%Grants PassOregon
3Bend Surgery Center79.5%BendOregon
4Surgical Care Affiliates - McKenzie Surgery Center78.2%EugeneOregon
5BSM Surgery Center78.1%CorvallisOregon
6Ashland Surgery Center77.6%AshlandOregon
7Surgery Center at Tanasbourne75.9%HillsboroOregon
8Plaza Ambulatory Surgery Center74.4%PortlandOregon
1Wills Surgery Center of Northeast80.1%PhiladelphiaPennsylvania
2Eastern Pennsylvania Endoscopy Center78.3%AllentownPennsylvania
3Twin Rivers Endoscopy Center78.2%EastonPennsylvania
4Surgery Center of Allentown78.0%AllentownPennsylvania
5Aestique Surgical Center77.7%GreensburgPennsylvania
6Southwestern Ambulatory Surgery Center77.6%PittsburghPennsylvania
7Carbon-Schuylkill Endoscopy Center77.5%LehightonPennsylvania
8Digestive Disease Associates - Brandywine Valley Endoscopy Center77.4%DowningtownPennsylvania
9Jefferson Health - Jefferson Endoscopy Center at Bala77.3%Bala CynwydPennsylvania
10Penn Medicine - Penn Gastroenterology Pennsylvania Hospital77.2%PhiladelphiaPennsylvania
11Wills Eye Hospital - Wills Eye Surgery Center in Plymouth Meeting77.1%ConshohockenPennsylvania
12Hershey Endoscopy Center77.1%HersheyPennsylvania
13WellSpan - Dr. Roy A. Himelfarb Surgery Center77.0%ChambersburgPennsylvania
14Turks Head Surgery Center76.9%West ChesterPennsylvania
15Paoli Surgery Center76.7%PaoliPennsylvania
16Allegheny Health Network - Monroeville Surgery Center76.6%MonroevillePennsylvania
17Surgical Care Affiliates - Pocono Ambulatory Surgery Center76.6%StroudsburgPennsylvania
18Geisinger Gray's Woods Outpatient Surgery & Endosc76.5%Port MatildaPennsylvania
19Abington Surgical Center76.4%Willow GrovePennsylvania
20UPMC - Monroeville Surgery Center76.3%MonroevillePennsylvania
21Hartman Eye Group76.3%GreensburgPennsylvania
22Penn Medicine - Penn Gastroenterology Radnor75.5%RadnorPennsylvania
23Surgical Care Affiliates - Mt. Pleasant Surgery Center75.5%Mount PleasantPennsylvania
24Harrisburg Endoscopy & Surgery Center75.2%HarrisburgPennsylvania
25Gamma Surgery Center75.1%PittsburghPennsylvania
26Allegheny Health Network - Outpatient Center Westmoreland75.1%GreenburgPennsylvania
27Bethlehem Endoscopy Center74.4%BethlehemPennsylvania
1Surgical Care Affiliates -The Surgery Center at Midlands Orthopaedics & Neurosurgery 81.1%ColumbiaSouth Carolina
2Palmetto Surgery Center81.0%ColumbiaSouth Carolina
3Surgical Care Affiliates - Spartanburg Surgery Center78.8%SpartanburgSouth Carolina
4Ambulatory Surgery Center of Spartanburg78.0%SpartanburgSouth Carolina
5Surgical Care Affiliates - Charleston Surgery Center76.9%SummervilleSouth Carolina
6Piedmont Surgery Center76.6%GreenvilleSouth Carolina
7Columbia Gastroenterology Associates P.A. - Columbia Gastrointestinal Endoscopy Center76.1%ColumbiaSouth Carolina
8Surgical Care Affiliates - Outpatient Surgery Center of Hilton Head75.8%Hilton Head IslandSouth Carolina
9Lexington Medical Center - Outpatient Hospital in Lexington75.4%LexingtonSouth Carolina
10MUSC Health - The Surgery Center at Edgewater75.3%Indian LandSouth Carolina
11Summerville Endoscopy Center75.0%SummervilleSouth Carolina
12Surgery Center at Pelham74.3%GreerSouth Carolina
1Methodist Germantown Surgery Center81.5%GermantownTennessee
2Baptist Germantown Surgery Center79.8%GermantownTennessee
3Saint Thomas Surgery Center - Midtown77.6%NashvilleTennessee
4Middle Tennessee Ambulatory Surgery Center76.6%MurfreesboroTennessee
5Physician's Surgery Center of Chattanooga76.2%ChattanoogaTennessee
6United Surgical Partners International - Surgery Center at Saint Francis75.9%MemphisTennessee
7The Surgery Center of Middle Tennessee75.4%ColumbiaTennessee
8Centennial Surgery Center74.9%NashvilleTennessee
1Surgical Care Affiliates - Texas Health Surgery Center Craig Ranch83.6%McKinneyTexas
2Baylor Scott & White SurgiCare - Denton82.2%DentonTexas
3Baylor Scott & White SurgiCare - North Dallas81.8%DallasTexas
4Surgical Care Affiliates - Texas Health Surgery Center Alliance81.8%Fort WorthTexas
5Surgical Care Affiliates - Southwest Fort Worth Endoscopy Center81.2%Fort WorthTexas
6Surgical Care Affiliates - Hays Surgery Center80.7%KyleTexas
7Baylor Scott & White SurgiCare - Dallas80.3%DallasTexas
8Surgical Care Affiliates - Texas Health Surgery Center Rockwall80.3%RockwallTexas
9Baylor Scott & White SurgiCare - North Garland80.2%GarlandTexas
10Memorial Hermann - Surgery Center Texas Medical Center79.7%HoustonTexas
11Memorial Hermann - Surgery Center Sugar Land79.3%Sugar LandTexas
12Austin Gastroenterology - Endoscopy Center II (South)79.1%AustinTexas
13Methodist Healthcare - Ambulatory Surgery Center - Medical Center78.9%San AntonioTexas
14Memorial Hermann - Endoscopy & Surgery Center North Houston78.8%HoustonTexas
15Surgical Care Affiliates - Texas Health Surgery Center Denton78.7%DentonTexas
16Surgical Care Affiliates - Fort Worth Endoscopy Center78.7%Fort WorthTexas
17Surgical Care Affiliates - Texas Health Orthopedic Surgery Center78.5%Flower MoundTexas
18Austin Gastroenterology - Endoscopy Center I (North)78.5%AustinTexas
19Aesthetic Plastic Surgery Center - Md Aesthetic Surgery Center78.5%HoustonTexas
20Memorial Hermann - Surgery Center Kirby Glen78.3%HoustonTexas
21Eye Surgery Center of North Dallas78.3%CarrolltonTexas
22Surgical Care Affiliates - Cedar Park Surgery Center78.2%Cedar ParkTexas
23Texas Health Surgery Center Preston Plaza78.1%DallasTexas
24Kelsey-Seybold Clinic - Ambulatory Surgery Center at Main Campus78.0%HoustonTexas
25Surgical Care Affiliates - Texas Health Surgery Center Bedford77.9%BedfordTexas
26Surgical Care Affiliates - Texas Health Surgery Center Fort Worth Midtown77.6%Fort WorthTexas
27Baylor Scott & White SurgiCare - Rockwall77.5%RockwallTexas
28Memorial Hermann - Surgery Center Texas International Endoscopy Center77.2%HoustonTexas
29Specialty Surgery Center of San Antonio77.1%San AntonioTexas
30St. David's Surgery Centers - Bailey Square Surgery Center77.0%AustinTexas
31Austin Diagnostic Clinic Ambulatory Surgery Center77.0%AustinTexas
32Memorial Hermann - Surgery Center Bay Area Endoscopy Center76.9%HoustonTexas
33Endoscopy Center of El Paso76.9%El PasoTexas
34Surgical Care Affiliates - Stonegate Surgery Center76.8%AustinTexas
35Surgical Center of El Paso76.8%El PasoTexas
36El Paso Day Surgery76.5%El PasoTexas
37Cy Fair Surgery Center76.5%HoustonTexas
38Methodist Craig Ranch Surgery Center75.8%McKinneyTexas
39Tuscan Surgery Center at Las Colinas75.7%IrvingTexas
40Medical City Surgery Center75.7%Fort WorthTexas
41Baylor Scott & White Ambulatory Endoscopy Center75.6%PlanoTexas
42Gramercy Outpatient Surgery Center75.4%HoustonTexas
43St. David's Surgery Centers - Oakwood Surgery Center75.2%Round RockTexas
44CHRISTUS Santa Rosa - Physicians Ambulatory Surgery Center - Ewing Halsell75.0%San AntonioTexas
45River Oaks Endoscopy74.9%ConroeTexas
46Bay Area Surgicare Center74.6%WebsterTexas
47The Austin Diagnostic Clinic - Surgery74.2%AustinTexas
1Proliance Surgeons - Seattle Surgery Center84.3%SeattleWashington
2Proliance Surgeons - Eastside Surgery Center82.2%KirklandWashington
3Proliance Surgeons - The Retina Surgery Center81.3%BellevueWashington
4Tri-City Regional Surgery Center80.1%RichlandWashington
5Gastro Health - Puget Sound Gastroenterology Kirkland79.9%KirklandWashington
6First Hill Surgery Center79.2%SeattleWashington
7Pacific Medical Centers - First Hill78.4%SeattleWashington
8Providence Health & Services - Providence Medical Park - Spokane Valley78.3%Spokane ValleyWashington
9Pacific Surgical Center78.0%LongviewWashington
10Gastro Health - Puget Sound Gastroenterology Seattle - Northgate77.2%SeattleWashington
11Bellingham Ambulatory Surgery Center76.9%BellinghamWashington
12Gastro Health - Puget Sound Gastroenterology Edmonds76.2%EdmondsWashington
13Overlake Surgery Center75.7%BellevueWashington
1The Surgery Center Franklin83.0%FranklinWisconsin
2Froedtert Surgery Center81.2%MilwaukeeWisconsin
3Aurora Health Care - North Shore Surgical Center78.6%GlendaleWisconsin
4Marshfield Clinic Health System - Marshfield - Outpatient Services76.9%MarshfieldWisconsin
5Ambulatory Surgical Center of Stevens Point75.9%Stevens PointWisconsin
6Aurora Health Care - Aurora Surgery Center75.3%GermantownWisconsin
7Center for Digestive Health74.4%MilwaukeeWisconsin


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Working with data research firm Statista, we analyzed ambulatory surgical center performance data. As part of the research, we conducted a survey of experts, asking nurses, therapists, physicians and surgeons, and administrators in ASCs for the best surgery centers in their state or a state they're familiar with. We also invited them to assess how well the ASC in question has handled the challenges of the COVID-19 crisis.

The rankings included Ambulatory Surgery Centers operating exclusively for the purpose of providing surgical services to patients not requiring hospitalization and in which the expected duration of services would not exceed 24 hours following an admission. An unanticipated medical circumstance may arise that would require an ASC patient to stay in the ASC longer than 24 hours, but such situations should be rare.

The research project analyzed more than 4,300 Ambulatory Surgery Centers in 25 states. The 400 Best Ambulatory Surgery Centers were identified, with a varying number of ASCs awarded per state: California, with 80, had the most, while Mississippi is represented with 3 ambulatory surgery centers.

The Ranking is based on the Overall Score of each facility, which is based on the Reputation Score and the KPI Data Score. The Reputation Score is based on three sub-scores: for recommendations, for quality and for the handling of the situation regarding Covid-19 (as of August 2020).

Additionally, experts from all over the US were able to participate in the survey of the Best Ambulatory Surgery Centers in the US on All data was collected by Newsweek and Statista during the survey period from July to September 2020. Self-recommendation was not possible (e.g. a recommendation of the ambulatory surgery centers someone worked for was not counted in the evaluation).

Participants were asked to recommend up to five ambulatory surgery centers. Additionally, participants were asked to rank quality, differentiating among these variables:
- Management in times of the COVID-19 crisis (e.g. safety of residents, hygiene measures)
- Management of waiting time (e.g. appointments) Quality of surgery preparations (e.g. consultation with doctor, information)
- Quality of surgical care (e.g. procedure)
- Quality of follow-up care (e.g. physical therapies)

The KPI Data Score is based on number of measures which are important for safe surgeries (e.g. burns, falls, hospital transfers). The U.S. Centers for Medicare & Medicaid Services (CMS) finalized the Ambulatory Surgical Center Quality Reporting (ASCQR) Program which provides KPI data for ambulatory surgery centers.

For the full methodology, download this file.