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California · Health Maintenance Organization

Health Maintenance Organization in California.

841 verified Health Maintenance Organization providers practise in California according to the National Plan and Provider Enumeration System (NPPES). Browse by city below, or click any provider to view their full NPI record including taxonomy, address, and contact details.

302R00000X841 in California200 citiesRefreshed monthly
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Los Angeles48San Diego31San Jose23Long Beach20Encino19Orange19Glendale16Sacramento16Fresno16Alhambra16Bakersfield15Riverside15Tustin15Oakland15Santa Ana14Woodland Hills14San Francisco14Cypress12Irvine12Anaheim11Cerritos11Costa Mesa9Oxnard9Ventura9Garden Grove8Pasadena8Stockton8San Bernardino8Buena Park7Inglewood7Murrieta6San Rafael6Moreno Valley6Santa Barbara6Downey6Beverly Hills5Santa Clara5Fullerton5Lakewood5San Luis Obispo5Northridge5Torrance5Harbor City4Covina4Monterey Park4Cupertino4Palmdale4Fremont4Eureka4Norwalk4Martinez4Redlands4Westminster4West Covina4Van Nuys4Vacaville4San Gabriel4Ontario4Canoga Park3Fontana3North Hollywood3Palo Alto3Chatsworth3Rancho Cucamonga3Redwood City3Rosemead3San Ramon3Corona3Scotts Valley3Signal Hill3South San Francisco3Lancaster3Upland3Diamond Bar3Visalia3Walnut Creek3Arcadia3El Cajon3Modesto3Fairfield3Desert Hot Springs2San Pedro2San Mateo2Montebello2Commerce2Pico Rivera2San Dimas2Valencia2Vallejo2Brea2Brawley2Fountain Valley2Rowland Heights2Oceanside2Walnut2Mountain View2Arleta2Dublin2Novato2Hacienda Heights2Whittier2N Hollywood2Winnetka2Grass Valley2Chula Vista2Redondo Beach2Yucaipa2Los Gatos2Lynwood2Bellflower2Manhattan Beach2Chico2Elk Grove2Berkeley2Pomona2Placerville2Newark2South Pasadena2Cathedral City2Calexico2Santa Rosa2Santa Clarita2Studio City2Sanger2Agoura Hills2Newport Beach2Temecula2Sunnyvale1Alameda1Alturas1Apple Valley1Artesia1Auburn1Azusa1Bakerfield1Baldwin Park1Barstow1Bell1Big Bear Lake1Burbank1Calabasas1Camarillo1Canyon Country1Carlsbad1Carmichael1Chino1Citrus Heights1City Of Industry1Clearlake1Clovis1Colton1Compton1Culver City1Daly City1Delano1Eastvale1El Centro1Emeryville1Exeter1Fair Oaks1Gardena1Gilroy1Glendora1Goleta1Hanford1Hawthorne1Hayward1Hemet1Hesperia1Hollister1Huntington Beach1Huntington Park1Imperial1Indio1La Habra1La Mesa1La Mirada1Laguna Beach1Laguna Hills1Lake Balboa1Lawndale1Lincoln1Livermore1Lodi1Lomita1Malibu1Maywood1Mcclellan1Menlo Park1Middletown1Monrovia1Monterey1National City1Nipomo1Palm Desert1Panorama City1Paradise1Parlier1Quail Valley1Rancho Cordova1

A representative sample · not the full listFeatured providers

18 of 841
TM
Talbert Medical Group
Health Maintenance Organization·Costa Mesa, CA·1497759005
Active›
KF
Kaiser Foundation Health Plan
Health Maintenance Organization·Walnut Creek, CA·1801329800
Active›
RA
Restorative Arts Physical Therapy INC
Health Maintenance Organization·Studio City, CA·1023014941
Active›
TC
Tmh Clinic And Home Care
Health Maintenance Organization·Hesperia, CA·1609300433
Active›
AM
Aegis Medical Systems
Health Maintenance Organization·Oxnard, CA·1316260094
Active›
CA
Catherine Au PHARMD, Mba, Bcps
Health Maintenance Organization·San Ramon, CA·1770914145
Active›
LC
Miss Leatrice Cardone Cota
Health Maintenance Organization·Ventura, CA·1467877795
Active›
EW
Dr. Elissa Woodruff PH.D.
Health Maintenance Organization·San Rafael, CA·1447663133
Active›
WM
Western Medical Management
Health Maintenance Organization·Irvine, CA·1063626984
Active›
GS
Good Samaritan Medical Practice Association
Health Maintenance Organization·Cypress, CA·1386606754
Active›
BA
Bay Area Care Partners
Health Maintenance Organization·Alhambra, CA·1609621440
Active›
EG
Ellen Giuffre Pt, Dpt
Health Maintenance Organization·Woodland Hills, CA·1407242910
Active›
SC
Southern California Permanente Medical Group
Health Maintenance Organization·Anaheim, CA·1952333460
Active›
SC
Southern California Permanente Medical Group
Health Maintenance Organization·Bakersfield, CA·1861424376
Active›
HE
Healthypartnerships
Health Maintenance Organization·Fairfield, CA·1285948018
Active›
MH
Memorial Healthcare Ipa
Health Maintenance Organization·Signal Hill, CA·1033127253
Active›
AD
American Diagnostic, INC
Health Maintenance Organization·Van Nuys, CA·1811906985
Active›
AD
Affiliated Doctors Of Orange County
Health Maintenance Organization·Garden Grove, CA·1487768891
Active›
See the full list by city:See all in Los Angeles 48See all in San Diego 31See all in San Jose 23See all in Long Beach 20See all in Encino 19See all in Orange 19
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Frequently asked · CaliforniaHealth Maintenance Organization in California

As of the June 2026 NPPES snapshot, 841 providers with the Health Maintenance Organization taxonomy are registered to a California practice address. Counts refresh monthly from the public CMS registry.

Open any provider's full NPI record to see their active status, taxonomy, and registered California practice address. For real-time confirmation, the authoritative source is the CMS NPPES public registry, which FindMyNPI mirrors and refreshes monthly.

Los Angeles (48), San Diego (31), San Jose (23). Use the "Refine by city" panel above to open any city's full directory.