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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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Organization (NPI-2) Active

CONEJO MEDICAL AND BREAST CARE CENTER A MEDICAL CORPORATION

Specialist

📍3180 WILLOW LN STE 212, THOUSAND OAKS, CA, 91361

📞 805-497-3239

NPI: 1376619262

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Organization (NPI-2) Active

CONRAD A. COX, M.D . INC.

Internal Medicine, Gastroenterology

📍5750 DOWNEY AVE STE 303, LAKEWOOD, CA, 90712

📞 562-461-8584

NPI: 1205968369

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Organization (NPI-2) Active

CONSTANTE U. ABAYA A PROFESSIONAL CORPORATION

Internal Medicine, Gastroenterology

📍1200 N VENTURA RD, OXNARD, CA, 93030

📞 805-983-0730

NPI: 1689936866

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Organization (NPI-2) Active

COORDINATED CARE MEDICAL GROUP

Hospitalist

📍711 W COLLEGE ST, LOS ANGELES, CA, 90012

📞 213-437-4216

NPI: 1285173336

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Organization (NPI-2) Active

CORONA HEALTH SPECIALTY ASSOCIATES, LLC

Internal Medicine, Cardiovascular Disease

📍2250 S MAIN ST STE 201, CORONA, CA, 92882

📞 951-734-4880

NPI: 1104433176

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Organization (NPI-2) Active

CRAIG R GLUCKMAN, M.D., A MEDICAL CORPORATION

Internal Medicine, Gastroenterology

📍16661 VENTURA BLVD STE 818, ENCINO, CA, 91436

📞 818-501-3320

NPI: 1760323588

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Organization (NPI-2) Active

CRISTINA S. WIESE. M.D. INC.

Internal Medicine, Gastroenterology

📍325 E. ROLLING OAKS DR., THOUSAND OAKS, CA, 91361

📞 805-557-0452

NPI: 1306156260

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Organization (NPI-2) Active

DALE PROKUPEK MD INC

Internal Medicine, Gastroenterology

📍8641 WILSHIRE BLVD, BEVERLY HILLS, CA, 90211

📞 310-360-6807

NPI: 1548569197

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Organization (NPI-2) Active

DALIA IBRAHIM-ABDELAZIZ MD

Internal Medicine, Gastroenterology

📍24411 HEALTH CENTER DR STE 430, LAGUNA HILLS, CA, 92653

📞 949-452-3933

NPI: 1063966299

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Organization (NPI-2) Active

DANICE HERTZ MD INC

Internal Medicine, Gastroenterology

📍2001 SANTA MONICA BLVD, SANTA MONICA, CA, 90404

📞 310-453-1871

NPI: 1225148489

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Organization (NPI-2) Active

DANIEL C ZOVICH MD INC

Internal Medicine, Gastroenterology

📍1551 BISHOP ST STE 450, SAN LUIS OBISPO, CA, 93401

📞 805-476-6410

NPI: 1295834091

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Organization (NPI-2) Active

DANIEL R CONLIN M D & ROBERT J ELSEN M D A MEDICAL CORPORATION

Internal Medicine, Gastroenterology

📍2100 WEBSTER ST STE 315, SAN FRANCISCO, CA, 94115

📞 415-923-3320

NPI: 1568577955

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Organization (NPI-2) Active

DANIEL RHEEM M.D., INC.

Internal Medicine, Gastroenterology

📍505 S VIRGIL AVE, LOS ANGELES, CA, 90020

📞 213-381-3630

NPI: 1366860827

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Organization (NPI-2) Active

DANIEL RHEEM MD INC

Internal Medicine

📍505 S VIRGIL AVE STE 101, LOS ANGELES, CA, 90020

📞 213-381-3630

NPI: 1982133492

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Organization (NPI-2) Active

DANIEL RHEEM MD INC

Internal Medicine, Gastroenterology

📍505 S VIRGIL AVE, LOS ANGELES, CA, 90020

📞 213-381-3630

NPI: 1942623160

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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