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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 106–120 of 200 providers
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Organization (NPI-2) Active

CONEJO VALLEY MULTISPECIALTY MEDICAL GROUP

Internal Medicine

📍227 W JANSS RD, THOUSAND OAKS, CA, 91360

📞 805-496-6051

NPI: 1699179762

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Organization (NPI-2) Active

CONTINUUM KIDNEY SERVICES LLC

Internal Medicine, Nephrology

📍28494 WESTINGHOUSE PL STE 104, VALENCIA, CA, 91355

📞 781-866-9875

NPI: 1740133933

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Organization (NPI-2) Active

COSMO L FRASER, MD

Internal Medicine, Nephrology

📍2115 E ONSTOTT RD, YUBA CITY, CA, 95991

📞 530-751-0339

NPI: 1285407536

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Organization (NPI-2) Active

CRICKET HEALTH MEDICAL PRACTICE PC

Internal Medicine, Nephrology

📍548 MARKET STREET, SAN FRANCISCO, CA, 94104

📞 833-644-8244

NPI: 1255961355

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Organization (NPI-2) Active

CROWN VALLEY INTERNAL MEDICAL GROUP

Internal Medicine, Nephrology

📍26732 CROWN VALLEY PKWY STE 511, MISSION VIEJO, CA, 92691

📞 949-364-1800

NPI: 1114100435

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Organization (NPI-2) Active

CUONG LY MD INC

Internal Medicine, Nephrology

📍24022 CALLE DE LA PLATA STE 510, LAGUNA HILLS, CA, 92653

📞 949-345-1114

NPI: 1831046499

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Organization (NPI-2) Active

CUONG LY MD, INC

Internal Medicine, Nephrology

📍23321 EL TORO RD, LAKE FOREST, CA, 92630

📞 949-305-2660

NPI: 1164694014

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Organization (NPI-2) Active

CYDNEY PURIFICACION MD INC

Internal Medicine, Nephrology

📍1310 W STEWART DR STE 402, ORANGE, CA, 92868

📞 714-502-5550

NPI: 1669308458

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Organization (NPI-2) Active

DANIEL LEVITAN MD INC

Internal Medicine, Nephrology

📍435 ARDEN AVE, GLENDALE, CA, 91209

📞 818-848-5595

NPI: 1578626784

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Organization (NPI-2) Active

DANIEL LEVITAN MD INC

Internal Medicine, Nephrology

📍5525 ETIWANDA, TARZANA, CA, 91356

📞 818-848-5595

NPI: 1205999414

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Organization (NPI-2) Active

DANIEL LEVITAN MD INC

Internal Medicine, Nephrology

📍255 E ORANGE GROVE AVE, BURBANK, CA, 91502

📞 818-848-5595

NPI: 1538150164

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Organization (NPI-2) Active

DAVID HEANEY MD INC

Internal Medicine, Nephrology

📍515 W ACEQUIA AVE STE A, VISALIA, CA, 93291

📞 559-733-9707

NPI: 1588879175

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Organization (NPI-2) Active

DAVID HEANEY, M.D., INC.

Internal Medicine, Nephrology

📍1070 N CHERRY ST, TULARE, CA, 93274

📞 559-733-9707

NPI: 1013123686

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Organization (NPI-2) Active

DAVID HEANEY, M.D., INC.

Internal Medicine, Nephrology

📍515 W PUTNAM AVE, PORTERVILLE, CA, 93257

📞 559-783-1363

NPI: 1972710127

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Organization (NPI-2) Active

DAVID JOHN SUGARMAN, M.D.INC.

Internal Medicine, Nephrology

📍1750 EL CAMINO REAL STE 202, BURLINGAME, CA, 94010

📞 650-697-3721

NPI: 1497915441

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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