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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 1–15 of 200 providers
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Individual (NPI-1) Active

MARK S ABATE M.D.

Internal Medicine, Hematology & Oncology

📍540 W PUEBLO ST, SANTA BARBARA, CA, 93105

📞 805-879-0670

NPI: 1588778674

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Individual (NPI-1) Active

IMAN ABDALLA MD

Internal Medicine, Hematology & Oncology

📍4733 W SUNSET BLVD, LOS ANGELES, CA, 90027

📞 323-783-4011

NPI: 1730248311

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Individual (NPI-1) Active

FOUAD M ABDELHALIM M.D.

Pathology, Hematology

📍2110 RUTHERFORD RD, CARLSBAD, CA, 92008

📞 760-516-5175

NPI: 1790073583

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Individual (NPI-1) Active

HAIFAA ABDULHAQ MD

Internal Medicine, Hematology & Oncology

📍785 MEDICAL CENTER DRIVE WEST, FRESNO, CA, 93611

📞 559-387-1900

NPI: 1508024647

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Individual (NPI-1) Active

NIHAL ESSA ABDULLA MD

Internal Medicine, Hematology & Oncology

📍3822 KATELLA AVE STE 200, LOS ALAMITOS, CA, 90720

📞 562-735-0602

NPI: 1750585345

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Individual (NPI-1) Active

MEHRAD ABEDI M.D.

Internal Medicine, Hematology & Oncology

📍4501 X ST STE 3016, SACRAMENTO, CA, 95817

📞 916-734-5981

NPI: 1467459222

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Individual (NPI-1) Active

OYEWALE OYEDEJI ABIDOYE M.D.

Internal Medicine, Hematology & Oncology

📍9850 GENESEE AVE, LA JOLLA, CA, 92037

📞 858-558-8666

NPI: 1790841815

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Individual (NPI-1) Active

ABDULRAHMAN HASSAN ABONOFAL MD

Internal Medicine, Hematology

📍1710 N 159TH AVE, GOODYEAR, AZ, 85395

📞 623-312-3020

NPI: 1164983748

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Individual (NPI-1) Active

MOHAMMED ISAAC ABU ZAANONA MD

Internal Medicine, Hematology & Oncology

📍540 W PUEBLO ST, SANTA BARBARA, CA, 93105

📞 805-879-0670

NPI: 1922591197

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Individual (NPI-1) Active

MOHAMAD MOUNIR ADADA M.D., PhD

Internal Medicine, Hematology & Oncology

📍1600 EUREKA RD, ROSEVILLE, CA, 95661

📞 916-784-5626

NPI: 1528590734

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Individual (NPI-1) Active

JESSE W. ADAMS MD

Internal Medicine, Hematology & Oncology

📍2025 MORSE AVE, SACRAMENTO, CA, 95825

📞 916-973-5000

NPI: 1851479554

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Individual (NPI-1) Active

THOMPSON ADAMS MD

Internal Medicine, Hematology & Oncology

📍2336 SANTA MONICA BLVD STE 301, SANTA MONICA, CA, 90404

📞 310-829-5471

NPI: 1407880891

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Individual (NPI-1) Active

JOHN W ADAMSON MD

Internal Medicine, Hematology

📍8929 UNIVERSITY CENTER LN, SAN DIEGO, CA, 92122

📞 858-405-2272

NPI: 1477504801

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Individual (NPI-1) Active

CAMILLE ADEIMY MD

Internal Medicine, Hematology & Oncology

📍1100 SAN BERNARDINO RD, UPLAND, CA, 91786

📞 909-949-2242

NPI: 1477785160

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Individual (NPI-1) Active

DAVID H ADKINS MD

Internal Medicine, Hematology & Oncology

📍600 COFFEE RD, MODESTO, CA, 95355

📞 209-521-6097

NPI: 1104883644

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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