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Healthcare Providers in California

Find doctors, hospitals, and clinics in California from the official NPPES NPI Registry. We found 200 providers in this listing.

200 Providers Found Data from NPPES NPI Registry Updated 2026
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All Providers Doctors Hospitals & Clinics
Showing 151–165 of 200 providers
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Individual (NPI-1) Active

GERALD TODD ADAMSON PsyD

Psychologist, Clinical

📍11340 W OLYMPIC BLVD, LOS ANGELES, CA, 90064

📞 323-459-7860

NPI: 1295069557

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Organization (NPI-2) Active

ADDICTION HEALTH ALLIANCE LLC

Substance Abuse Rehabilitation Facility

📍605 AVENIDA LAS FLORES, SAN CLEMENTE, CA, 92672

📞 513-280-2714

NPI: 1518320415

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Individual (NPI-1) Active

LAURA R. ADDISON Ph.D, BCBA-D

Behavior Analyst

📍1000 PASEO CAMARILLO STE 235, CAMARILLO, CA, 93010

📞 805-383-5566

NPI: 1306171830

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Individual (NPI-1) Active

DALIA ADEINA PhD

Psychologist, Clinical

📍21125 CENTRE POINTE PKWY, SANTA CLARITA, CA, 91350

📞 855-435-3801

NPI: 1790018497

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Organization (NPI-2) Active

ADELA, INC.

Clinical Medical Laboratory

📍353 HATCH DR, FOSTER CITY, CA, 94404

📞 650-442-2032

NPI: 1043021272

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Individual (NPI-1) Active

MARCY ADELMAN Ph.D.

Psychologist, Clinical

📍3890 24TH ST, SAN FRANCISCO, CA, 94114

📞 415-285-4307

NPI: 1467668277

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Individual (NPI-1) Active

DANEN ADELSON Psy.D.

Psychologist, Clinical

📍621 4TH ST, DAVIS, CA, 95616

📞 530-988-8535

NPI: 1811365125

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Individual (NPI-1) Active

TEDDY ADELSTEIN Ph.D.

Psychologist, Clinical

📍45 WINDSTONE DR, SAN RAFAEL, CA, 94903

📞 415-381-2209

NPI: 1144276874

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Individual (NPI-1) Active

OLABANJI ADENIRANYE Psy.D., LMFT

Psychologist, Clinical

📍2801 B ST # 2134, SAN DIEGO, CA, 92102

📞 619-514-3320

NPI: 1033623996

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Individual (NPI-1) Active

LAURA L ADERY PhD

Psychologist, Clinical

📍760 WESTWOOD PLZ STE 48-240, LOS ANGELES, CA, 90095

📞 310-825-9989

NPI: 1568082113

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Organization (NPI-2) Active

ADEVE

Clinical Medical Laboratory

📍804 JADE PL, MONTEBELLO, CA, 90640

📞 323-897-8378

NPI: 1518621366

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Organization (NPI-2) Active

ADJ CORPORATION

Clinical Medical Laboratory

📍10200 PIONEER BLVD, SANTA FE SPRINGS, CA, 90670

📞 562-906-5227

NPI: 1124050380

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Individual (NPI-1) Active

ASHVIND N. ADKINS SINGH PhD

Psychologist, Clinical

📍5100 E THE TOLEDO, LONG BEACH, CA, 90803

📞 562-375-0451

NPI: 1336429000

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Individual (NPI-1) Active

JEFFREY ADLER

Psychologist, Clinical

📍9650 ZELZAH AVE, NORTHRIDGE, CA, 91325

📞 818-993-9311

NPI: 1306987169

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Individual (NPI-1) Active

SARAH ADLER Psy.D.

Psychologist, Clinical

📍300 PASTEUR DR, STANFORD, CA, 94305

📞 650-723-4000

NPI: 1194011619

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🗺 Cities in California

📍 Los Angeles 📍 San Diego 📍 San Jose 📍 San Francisco 📍 Fresno 📍 Sacramento 📍 Long Beach 📍 Oakland 📍 Bakersfield 📍 Anaheim 📍 Stockton 📍 Riverside 📍 Santa Ana 📍 Irvine 📍 Chula Vista 📍 Fremont 📍 San Bernardino 📍 Modesto 📍 Moreno Valley 📍 Huntington Beach

📊 Quick Stats

Providers Listed 200
Cities Found 20
State California
Source NPPES NPI Registry

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Healthcare in California

California operates the largest state healthcare system in the United States, serving nearly 40 million residents across a diverse landscape of urban megacities, agricultural valleys, and remote mountain communities. The state is home to world-renowned medical institutions including UCSF Medical Center, Cedars-Sinai Medical Center, Stanford Health Care, UCLA Health, and the Scripps Health system in San Diego. These institutions consistently rank among the nation's best for cancer care, neurology, cardiology, and transplant medicine.

California's Medi-Cal program is the largest Medicaid program in the country, covering over 14 million low-income Californians. The state has been a national leader in expanding coverage, and recent reforms have extended Medi-Cal eligibility to all income-eligible adults regardless of immigration status. The Covered California marketplace (coveredca.gov) offers subsidized private insurance plans for those who do not qualify for Medi-Cal.

Despite its healthcare wealth, California faces significant disparities in access. Rural counties in the Central Valley and Northern California have severe physician shortages, and many communities lack specialists entirely. The California Department of Health Care Services (DHCS) (dhcs.ca.gov) oversees Medi-Cal and public health programs, while the California Medical Board (mbc.ca.gov) licenses and disciplines physicians.

California has been a pioneer in telehealth legislation, requiring insurers to cover telehealth services at parity with in-person visits, significantly improving access for rural and underserved populations.

Frequently Asked Questions — California Healthcare