Best Ambulatory Surgery Centers 2022 - California

America's Best

Ambulatory Surgery Centers 2022

Ambulatory surgical centers have become a big part of American medicine. These are facilities where patients can have specific surgical procedures that usually don't require them to be hospitalized, meaning you can have the operation and then be back home quickly, often the same day. Currently there are over 5,000 medicare certified ambulatory surgical centers around the country in all the major surgical specialties – orthopedic surgery, cardiac surgery, eye surgery, spinal surgery and so on.

To help our readers make knowledgeable choices when they seek care for themselves or loved ones, Newsweek has again partnered with respected global research firm Statista to name America's Best Ambulatory Surgery Centers. This year our list spotlights 470 facilities in the 25 states with the most ambulatory surgery centers. The states are Arizona, California, Colorado, Florida, Georgia, Illinois, Indiana, Kansas, Louisiana, Maryland, Michigan, Minnesota, Mississippi, Missouri, New Jersey, New York, North Carolina, Ohio, Oregon, Pennsylvania, South Carolina, Tennessee, Texas, Washington and Wisconsin.

We hope these trustworthy, carefully vetted rankings of America's Best Ambulatory Surgery Centers help you make choices with confidence.

Nancy Cooper Signature 2
1UCLA Health - Ambulatory Surgery Center Westwood96.00%Los AngelesCalifornia
2Cedars Sinai - 90210 Surgery Medical Center92.30%Beverly HillsCalifornia
3Surgical Care Affiliates - Surgical Center of San Diego90.80%San DiegoCalifornia
4Hoag Endoscopy Center88.20%Newport BeachCalifornia
5Sutter Health - Surgery Center Mountain View87.50%Mountain ViewCalifornia
6Newport Beach Surgery Center87.00%Newport BeachCalifornia
7Surgical Care Affiliates - UCSD Center for Surgery of Encinitas85.60%EncinitasCalifornia
8Surgical Care Affiliates - La Veta Surgical Center84.40%OrangeCalifornia
9Aspen Surgery Center83.90%Simi ValleyCalifornia
10Desert Care Network - El Mirador Surgery Center83.40%Palm SpringsCalifornia
11Sutter Health - Roseville Endoscopy Center83.10%RosevilleCalifornia
12Otay Lakes Surgery Center82.60%Chula VistaCalifornia
13The Oaks Surgery Center LP82.60%MurrietaCalifornia
14Scripps - Clinic Rancho Bernardo82.60%San DiegoCalifornia
15Surgical Care Affiliates - Inland Surgery Center82.50%RedlandsCalifornia
16Sutter Health - Surgery Center Palo Alto82.40%Palo AltoCalifornia
17Surgery Partners - La Peer Surgery Center82.10%Beverly HillsCalifornia
18Los Gatos Surgical Center81.90%Los GatosCalifornia
19Scripps - Clinic Carmel Valley81.90%San DiegoCalifornia
20Surgery Partners - Aspen Surgery Center81.50%Walnut CreekCalifornia
21MemorialCare - The Surgical Center at Saddleback81.40%Laguna HillsCalifornia
22Surgery Partners - Specialty Surgical Center Of Encino81.00%EncinoCalifornia
23Surgical Care Affiliates - University Ambulatory Surgery Center80.70%San DiegoCalifornia
24Surgical Care Affiliates - Glenwood Surgery Center80.10%RiversideCalifornia
25Surgical Care Affiliates - Grossmont Surgery Center79.60%La MesaCalifornia
26Surgical Care Affiliates - San Diego Endoscopy Center79.40%San DiegoCalifornia
27Surgical Care Affiliates - MemorialCare Surgical Center at Orange Coast79.30%Fountain ValleyCalifornia
28Surgical Care Affiliates - Barranca Surgery Center79.30%IrvineCalifornia
29Scripps - Mercy Surgery Pavilion78.90%San DiegoCalifornia
30Surgical Care Affiliates - North Coast Surgery Center78.90%OceansideCalifornia
31Los Robles Surgicenter78.90%Thousand OaksCalifornia
32Sutter Health - Sierra Surgery Center78.50%RosevilleCalifornia
33Mid Valley Surgery Center78.50%OntarioCalifornia
34Sutter Health - Surgery Center Fremont78.30%FremontCalifornia
35Surgical Care Affiliates - Outpatient Surgery Center of La Jolla78.20%La JollaCalifornia
36Waverley Surgery Center78.00%Palo AltoCalifornia
37Huntington Ambulatory Surgery Center77.50%PasadenaCalifornia
38Sutter Health - Santa Barbara Endoscopy Center77.30%Santa BarbaraCalifornia
39Surgical Care Affiliates - Channel Islands Surgicenter77.20%OxnardCalifornia
40Scripps - Ambulatory Surgery Center - Ximed Building77.10%La JollaCalifornia
41Sutter Health - Capitol City Surgery Center77.10%SacramentoCalifornia
42Sutter Health - Surgery Center San Carlos77.00%San CarlosCalifornia
43Four Seasons Surgery Centers of Ontario76.80%OntarioCalifornia
44Sutter Health - Santa Rosa Surgery and Endoscopy Center76.80%Santa RosaCalifornia
45Archibald Surgery Center76.50%Rancho CucamongaCalifornia
46Surgical Care Affiliates - Golden Triangle Surgicenter76.40%MurrietaCalifornia
47Pacific Ambulatory Surgery Center76.10%AlhambraCalifornia
48Carlsbad Surgery Center76.10%CarlsbadCalifornia
49Surgical Care Affiliates - MemorialCare Surgical Center Laguna Niguel 75.90%Laguna NiguelCalifornia
50Nvision - Pacific Hills Surgery Center75.80%Laguna HillsCalifornia
51Vituity Healthcare - Surgery Center of Northern California75.70%ReddingCalifornia
52Scripps - Encinitas Surgery Center75.70%EncinitasCalifornia
53Crown Valley Outpatient Surgical Center75.70%Mission ViejoCalifornia
54Monterey Peninsula Surgery Centers75.50%MontereyCalifornia
55MemorialCare - Digestive Care Center75.50%Laguna HillsCalifornia
56Physicians' Surgery Center of Downey LLC75.40%DowneyCalifornia
57Loma Linda University Health Beaumont-Banning75.40%BeaumontCalifornia
58United Surgical Partners International - Magnolia Surgery Center75.30%WestminsterCalifornia
59SoCaleye - Surgery Center75.20%Long BeachCalifornia
60North Orange County Surgery Center75.20%AnaheimCalifornia
61Sutter Health - San Francisco Endoscopy Center75.20%San FranciscoCalifornia
62Associated Gastroenterology Medical Group - Endoscopy Center75.10%AnaheimCalifornia
63Surgery Partners - Forest Surgery Center75.10%San JoseCalifornia
64Sutter Health - Sutter North Surgery and Endoscopy Center74.90%Yuba CityCalifornia
65Surgical Care Affiliates - Arcadia Outpatient Surgery Center74.90%ArcadiaCalifornia
66Cedars Sinai - Precision Ambulatory Surgical Center74.80%Beverly HillsCalifornia
67Pacific Heights Surgery Center74.70%San FranciscoCalifornia
68Cedars Sinai - Surgery Center of the Pacific - Santa Monica74.70%Santa MonicaCalifornia
69Pacific Surgery Center of Ventura 74.60%VenturaCalifornia
70Casa Colina Surgery Center LLC74.60%PomonaCalifornia
71Monterey Bay GI Consultants Medical Group Inc - Monterey Bay Endoscopy Center LLC74.50%MontereyCalifornia
72Eye Surgical and Medical Associates Inc - Noble Surgery Center74.40%VisaliaCalifornia
73Santa Clarita Surgery Center LP74.30%Santa ClaritaCalifornia
74Surgery Partners - Specialty Surgical Center of Westlake Village 74.30%Westlake VillageCalifornia
75Los Angeles Endoscopy Center 74.20%Los AngelesCalifornia
76United Surgical Partners International - Pacific Endoscopy and Surgery Center74.20%Fountain ValleyCalifornia
77Solar Surgical Center74.20%OxnardCalifornia
78Premier Surgery Center of Santa Maria74.10%Santa MariaCalifornia
79United Surgical Partners International - Folsom Surgery Center74.10%FolsomCalifornia
80Fremont Surgery Center74.10%FremontCalifornia
81Loma Linda Ambulatory Surgical Center Podiatry Corp74.00%Loma LindaCalifornia
82El Camino Health Ambulatory Surgery Center - Mountain View74.00%Mountain ViewCalifornia
83West Hills Surgical Center74.00%West HillsCalifornia


If your facility is listed in the ranking, click here to learn more about the licencing options.


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 4,600 Ambulatory Surgery Centers in 25 states. The 470 Best Ambulatory Surgery Centers were identified, with a varying number of ASCs awarded per state: California, with 83, had the most, while Mississippi is represented with 4 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 September 2021).

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 2021. 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 ranking is comprised exclusively of ambulatory surgery centers that are eligible regarding the above-mentioned scope. The ranking was created through an elaborate process. The information provided in this ranking should be considered together with other information about ambulatory surgery centers or, if possible, accompanied.

For the full methodology, download this file.