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State

Outpatient surgery centers in California

934 outpatient surgery centers certified by Medicare.

An outpatient surgery center (ambulatory surgical center, ASC) does surgery and procedures that do not need a hospital stay: patients usually go home the same day. Common examples are cataract surgery, colonoscopy and other endoscopy, joint and hand surgery, and pain injections. The centers listed here are certified by Medicare. They are not emergency rooms.

By kind of surgery

Number of centers here certified by Medicare for each kind of surgery (one center can do several).

  • Eye surgery (ophthalmology)256
  • Endoscopy (for example colonoscopy)276
  • Orthopedic surgery (bones and joints)337
  • Pain management procedures345
  • Plastic surgery308
  • Foot surgery (podiatry)254
  • Ear, nose and throat surgery225
  • Gynecologic surgery (OB/GYN)201
  • Dental and oral surgery63
  • Other surgery338

By county

By city

All outpatient surgery centers in California

Agoura Hills

Alhambra

Aliso Viejo

Anaheim

Antioch

Apple Valley

Arcadia

Arroyo Grande

Atascadero

Atwater

Auburn

Azusa

Bakersfield

Beaumont

Bell Gardens

Bellflower

Benicia

Beverly Hills

Brentwood

Buena Park

Burbank

Calabasas

Camarillo

Campbell

Capitola

Carlsbad

Castro Valley

Cathedral City

Century City

Cerritos

Chico

Chino

Chino Hills

Chula Vista

Citrus Heights

City of Industry

Clovis

Colton

Concord

Corona

Corona del Mar

Costa Mesa

Covina

Culver City

Daly City

Danville

Delano

Downey

El Cajon

El Centro

El Cerrito

El Dorado Hills

El Segundo

Elk Grove

Emeryville

Encinitas

Encino

Escondido

Fairfield

Folsom

Foothill Ranch

Foster City

Fountain Valley

Freedom

Fremont

Fresno

Fullerton

Garden Grove

Glendale

Glendora

Grass Valley

Greenbrae

Hanford

Hawthorne

Hayward

Hemet

Hermosa Beach

Huntington Beach

Imperial

Indio

Inglewood

Irvine

Kelseyville

La Jolla

La Mesa

Laguna Beach

Laguna Hills

lakewood

Lancaster

Lodi

Loma Linda

Long Beach

Los Alamitos

Los Altos

Los Angeles

Los Gatos

Lynwood

Madera

Manhattan Beach

Manteca

Marina del Rey

Merced

Milpitas

Mission Hills

Mission Viejo

Modesto

Montebello

Monterey

Monterey Park

Mountain View

Murrieta

Napa

Newport Beach

North Hollywood

Northridge

Novato

Oakland

Oceanside

Ontario

Orange

Oxnard

Palm Desert

Palm Springs

Palmdale

Palo Alto

Paramount

Pasadena

Pinole

Pismo Beach

Placerville

Playa Vista

Pleasanton

Pomona

Porterville

Poway

Rancho Cordova

Rancho Cucamonga

Rancho Mirage

Redding

Redlands

Redondo Beach

Redwood City

Reseda

Rialto

Ridgecrest

Riverside

Rocklin

Rolling Hills Estate

Roseville

Rowland Heights

Sacramento

Salida

Salinas

San Bernardino

San Carlos

San Clemente

San Diego

San Francisco

San Gabriel

San Jose

San Juan Capistrano

San Leandro

San Luis Obispo

San Marcos

San Mateo

San Pedro

San Rafael

San Ramon

Santa Ana

Santa Barbara

Santa Clara

Santa Clarita

Santa Cruz

Santa Maria

Santa Monica

Santa Rosa

Seal Beach

Sebastopol

Sherman Oaks

Simi Valley

Sonora

South Gate

South San Francisco

Stockton

Studio City

Sun Valley

Tarzana

Temecula

Templeton

Thousand Oaks

Torrance

Tracy

Truckee

Tulare

Turlock

Tustin

Upland

Vacaville

Valencia

Van Nuys

Venice

Ventura

Victorville

Visalia

Vista

Walnut Creek

West Covina

West Hills

Westlake Village

Westminster

Whittier

Wildomar

Windsor

Woodland Hills

Yuba City

More care in California

Common questions

How many outpatient surgery centers are in California?

Medicare (CMS) lists 934 outpatient surgery centers in California.

Which surgery centers in California do eye surgery such as cataract surgery?

256 of the 934 outpatient surgery centers are certified by Medicare for it: 4th Street Laser & Surgery Ctr, 90210 Surgery Medical Center, LLC, Abroms Dougherty Vision Asc, Advanced Diagnostic & Surgical, Advanced Surgery Center, Advanced Surgery Center, Advanced Surgery Medical Center, LLC, Advanced Surgical Center of Torrance, LLC, Advanced Surgical Partners, Inc, Alliance Surgery Partners LLC, Antelope Valley Surgery Center and Arcadia Outpatient Surgery Ctr, and 244 more listed below. Ask the center whether it does your specific procedure.

Which surgery centers in California do endoscopy such as colonoscopy?

276 of the 934 outpatient surgery centers are certified by Medicare for it: 436 Beverly Hills, LLC, 90210 Surgery Medical Center at Linden, Ace Endoscopy & Surgery Center, Advanced Endoscopy Center, Advanced Endoscopy Center, Advanced Endoscopy Center - Gastroenterology, Advanced Surgery Center, Advanced Surgical Center of Torrance, LLC, Aesthetic Surgical Center of Santa Monica, Agmg Endoscopy Center, Airport Endoscopy Center and Alameda Surgery Center, LP, and 264 more listed below. Ask the center whether it does your specific procedure.

Which surgery centers in California do orthopedic (bone and joint) surgery?

337 of the 934 outpatient surgery centers are certified by Medicare for it: 20th Street Surgery Center, LLC, 90210 Surgery Medical Center at Linden, Advanced Ambulatory Surgery Center, Advanced Eye Surgery Center, Advanced Multispecialty Surgery Center, Advanced Sight Surgery Center, Advanced Specialty Surgical Center, LLC, Advanced Surgery Center, Advanced Surgery Center, Advanced Surgery Center of North County, Advanced Surgical Center of Torrance, LLC and Advanced Surgicare, LLC, and 325 more listed below. Ask the center whether it does your specific procedure.

Do surgery centers have Medicare star ratings?

No. Medicare does not rate outpatient surgery centers with stars. Each center’s page shows the official Medicare quality measures and patient survey results instead, next to the national values.

Source: Centers for Medicare & Medicaid Services (CMS), “Provider of Services File - Internet Quality Improvement and Evaluation System”, data updated 2026-10-16, retrieved 2026-11-11. In a medical emergency, call 911. About outpatient surgery centers and their quality measures