Surgery Centers in California
661 Medicare-certified surgery-centers across 192 cities
661
Total Surgery Centers
192
Cities Covered
661
Medicare Certified
4.1 ★
Avg Google Rating
Ambulatory Surgery Centers in California
California has 661 Medicare-certified ambulatory surgery centers (ASCs) across 192 cities and towns. ASCs are outpatient facilities where patients undergo same-day surgical procedures and return home the same day — no overnight hospital stay required. 446 of these centers hold independent accreditation from organizations like AAAHC, AAAASF, or The Joint Commission. 300 centers have CMS CAHPS patient satisfaction survey data available.
The largest concentration of ASCs in California is in Los Angeles, with 25 centers. Use the city listings below to browse centers near you, or search by zip code for the closest options.
Browse by City in California
Los Angeles
25 surgery-centers
Beverly Hills
21 surgery-centers
San Diego
19 surgery-centers
Bakersfield
18 surgery-centers
Torrance
18 surgery-centers
Fresno
17 surgery-centers
San Jose
13 surgery-centers
Newport Beach
12 surgery-centers
Irvine
11 surgery-centers
Santa Barbara
11 surgery-centers
Thousand Oaks
11 surgery-centers
Sacramento
10 surgery-centers
San Francisco
10 surgery-centers
Encino
9 surgery-centers
Mission Viejo
9 surgery-centers
Pasadena
9 surgery-centers
Lancaster
8 surgery-centers
Murrieta
8 surgery-centers
Walnut Creek
8 surgery-centers
Chico
7 surgery-centers
Fremont
7 surgery-centers
Glendale
7 surgery-centers
Long Beach
7 surgery-centers
Rancho Mirage
7 surgery-centers
Redding
7 surgery-centers
Riverside
7 surgery-centers
Hemet
6 surgery-centers
Los Gatos
6 surgery-centers
Modesto
6 surgery-centers
Orange
6 surgery-centers
San Luis Obispo
6 surgery-centers
Santa Rosa
6 surgery-centers
Stockton
6 surgery-centers
Valencia
6 surgery-centers
Anaheim
5 surgery-centers
Arcadia
5 surgery-centers
Burbank
5 surgery-centers
Camarillo
5 surgery-centers
Laguna Hills
5 surgery-centers
Mountain View
5 surgery-centers
Santa Monica
5 surgery-centers
Temecula
5 surgery-centers
Templeton
5 surgery-centers
Chula Vista
4 surgery-centers
Colton
4 surgery-centers
Encinitas
4 surgery-centers
Greenbrae
4 surgery-centers
Merced
4 surgery-centers
Monterey
4 surgery-centers
Northridge
4 surgery-centers
Oakland
4 surgery-centers
Oceanside
4 surgery-centers
Palm Desert
4 surgery-centers
Redlands
4 surgery-centers
Roseville
4 surgery-centers
Salinas
4 surgery-centers
San Ramon
4 surgery-centers
Santa Maria
4 surgery-centers
Tarzana
4 surgery-centers
Visalia
4 surgery-centers
Escondido
3 surgery-centers
Fountain Valley
3 surgery-centers
Garden Grove
3 surgery-centers
Grass Valley
3 surgery-centers
Hanford
3 surgery-centers
Huntington Beach
3 surgery-centers
La Jolla
3 surgery-centers
La Mesa
3 surgery-centers
Monterey Park
3 surgery-centers
Napa
3 surgery-centers
Oxnard
3 surgery-centers
Palmdale
3 surgery-centers
Sherman Oaks
3 surgery-centers
Simi Valley
3 surgery-centers
Upland
3 surgery-centers
Van Nuys
3 surgery-centers
Ventura
3 surgery-centers
West Hills
3 surgery-centers
Westlake Village
3 surgery-centers
Westminster
3 surgery-centers
Alhambra
2 surgery-centers
Aliso Viejo
2 surgery-centers
Apple Valley
2 surgery-centers
Arroyo Grande
2 surgery-centers
Burlingame
2 surgery-centers
Campbell
2 surgery-centers
Carlsbad
2 surgery-centers
Cerritos
2 surgery-centers
Citrus Heights
2 surgery-centers
Clovis
2 surgery-centers
Downey
2 surgery-centers
El Cajon
2 surgery-centers
Folsom
2 surgery-centers
Freedom
2 surgery-centers
Fullerton
2 surgery-centers
Glendora
2 surgery-centers
Hayward
2 surgery-centers
Lake Forest
2 surgery-centers
Los Alamitos
2 surgery-centers
Los Altos
2 surgery-centers
Mission Hills
2 surgery-centers
Montebello
2 surgery-centers
Palo Alto
2 surgery-centers
Pinole
2 surgery-centers
Redwood City
2 surgery-centers
San Carlos
2 surgery-centers
San Gabriel
2 surgery-centers
Santa Ana
2 surgery-centers
Santa Clarita
2 surgery-centers
Turlock
2 surgery-centers
Victorville
2 surgery-centers
Yuba City
2 surgery-centers
Addison
1 surgery-center
Antioch
1 surgery-center
Atherton
1 surgery-center
Auburn
1 surgery-center
Azusa
1 surgery-center
Bellflower
1 surgery-center
Buena Park
1 surgery-center
Calabasas
1 surgery-center
Capitola
1 surgery-center
Castro Valley
1 surgery-center
Cathedral City
1 surgery-center
Chino
1 surgery-center
Chino Hills
1 surgery-center
City Of Industry
1 surgery-center
Concord
1 surgery-center
Corona
1 surgery-center
Costa Mesa
1 surgery-center
Covina
1 surgery-center
Culver City
1 surgery-center
Daly City
1 surgery-center
Danville
1 surgery-center
Delano
1 surgery-center
El Centro
1 surgery-center
El Dorado Hills
1 surgery-center
El Segundo
1 surgery-center
Elk Grove
1 surgery-center
Emeryville
1 surgery-center
Eureka
1 surgery-center
Fairfield
1 surgery-center
Foothill Ranch
1 surgery-center
Foster City
1 surgery-center
Hawthorne
1 surgery-center
Inglewood
1 surgery-center
Jackson
1 surgery-center
Laguna Beach
1 surgery-center
Laguna Niguel
1 surgery-center
Laguna Woods
1 surgery-center
Lodi
1 surgery-center
Loma Linda
1 surgery-center
Madera
1 surgery-center
Manhattan Beach
1 surgery-center
Manteca
1 surgery-center
Marina Del Rey
1 surgery-center
North Hollywood
1 surgery-center
Novato
1 surgery-center
Ontario
1 surgery-center
Palm Springs
1 surgery-center
Pismo Beach
1 surgery-center
Placerville
1 surgery-center
Pleasanton
1 surgery-center
Pomona
1 surgery-center
Porterville
1 surgery-center
Poway
1 surgery-center
Rancho Cordova
1 surgery-center
Rancho Cucamonga
1 surgery-center
Redondo Beach
1 surgery-center
Reseda
1 surgery-center
Rialto
1 surgery-center
Ridgecrest
1 surgery-center
Rocklin
1 surgery-center
Rolling Hills Estates
1 surgery-center
Rowland Heights
1 surgery-center
San Bernardino
1 surgery-center
San Clemente
1 surgery-center
San Juan Capistrano
1 surgery-center
San Leandro
1 surgery-center
San Mateo
1 surgery-center
San Pedro
1 surgery-center
San Rafael
1 surgery-center
Santa Clara
1 surgery-center
Santa Cruz
1 surgery-center
Seal Beach
1 surgery-center
Sebastopol
1 surgery-center
Sonora
1 surgery-center
Sun Valley
1 surgery-center
Tracy
1 surgery-center
Truckee
1 surgery-center
Vacaville
1 surgery-center
West Covina
1 surgery-center
Wildomar
1 surgery-center
Frequently Asked Questions
How many ambulatory surgery centers are in California?
California has 661 Medicare-certified ambulatory surgery centers (ASCs) across 192 cities. ASCs perform same-day outpatient surgical procedures without an overnight hospital stay.
Does Medicare cover outpatient surgery at ASCs in California?
Yes — Medicare Part B covers approved surgical procedures performed at Medicare-certified ASCs. You typically pay 20% of the Medicare-approved amount after meeting your Part B deductible. All 661 centers listed here are Medicare-certified. Contact individual facilities to confirm which specific procedures they perform and whether your insurance is accepted.
What is the difference between an ASC and a hospital outpatient department?
Ambulatory surgery centers are independent facilities focused exclusively on outpatient surgery. Compared to hospital outpatient departments, ASCs typically have lower patient cost-sharing (due to CMS payment rules), shorter wait times, and a more focused care environment. Studies show ASC patients also report high satisfaction and low complication rates.
How do I compare ASC quality in California?
This directory shows CMS CAHPS patient satisfaction scores (0–100 scale), Google ratings, accreditation status (AAAHC, AAAASF, Joint Commission), and safety metrics like hospital transfer rate and safe surgery checklist compliance. The average Google rating across rated ASCs in California is 4.1 out of 5.
What surgical specialties are available at ASCs in California?
ASCs in California perform procedures across many specialties including ophthalmology, gastroenterology, orthopedics, ENT, urology, pain management, and more. Use the specialty filter on the search page or browse the Procedures directory to find centers offering specific procedures.