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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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Organization (NPI-2) Active

A.M. NISAR SYED A PROFESSIONAL MEDICAL CORPORATION

📍4500 BROCKTON AVE, RIVERSIDE, CA, 92501

📞 951-788-3000

NPI: 1508113523

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Individual (NPI-1) Active

CHRISTINA MARIE ABEL Nurse practitioner

📍1000 W LA VETA AVE, ORANGE, CA, 92868

📞 714-734-6256

NPI: 1033638911

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Individual (NPI-1) Active

JONATHAN ALAN ABELSON M.D.

Specialist

📍2230 LYNN RD STE 103, THOUSAND OAKS, CA, 91360

📞 805-496-4111

NPI: 1730348053

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Individual (NPI-1) Active

ROY EUGENE ABENDROTH MD

📍2333 BUCHANAN ST, SAN FRANCISCO, CA, 94115

📞 209-342-2300

NPI: 1811988421

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Organization (NPI-2) Active

ABHINAND V PEDDADA MD

📍15400 NATIONAL AVE, LOS GATOS, CA, 95032

📞 408-358-8400

NPI: 1922319565

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Organization (NPI-2) Active

ADVANCED RADIATION ONCOLOGY MEDICAL GROUP, INC.

📍2707 E VALLEY BLVD STE 109, WEST COVINA, CA, 91792

📞 626-956-8009

NPI: 1720266075

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Organization (NPI-2) Active

ADVANCED RADIATION ONCOLOGY SERVICES

📍4945 W CYPRESS AVE, VISALIA, CA, 93277

📞 559-624-3100

NPI: 1558339655

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Organization (NPI-2) Active

ADVANCED RADIATION ONCOLOGY SERVICES

📍1443 W 7TH ST, HANFORD, CA, 93230

📞 559-585-7115

NPI: 1558338269

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Individual (NPI-1) Active

SUNIL JERAM ADVANI M.D.

📍3855 HEALTH SCIENCES DR # 843, LA JOLLA, CA, 92093

📞 858-822-4364

NPI: 1669649844

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Organization (NPI-2) Active

ADVENTIST HEALTH PHYSICIANS NETWORK

Nuclear Medicine

📍2407 W VINE ST, LODI, CA, 95242

📞 209-334-8585

NPI: 1861955460

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Organization (NPI-2) Active

ADVENTIST HEALTH PHYSICIANS NETWORK

📍2985 SYCAMORE DR, SIMI VALLEY, CA, 93065

📞 805-584-6611

NPI: 1720831720

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Organization (NPI-2) Active

AFFILIATED ONCOLOGISTS, LLC

Internal Medicine, Medical Oncology

📍4400 W 95TH ST, OAK LAWN, IL, 60453

📞 310-335-4000

NPI: 1225314362

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Individual (NPI-1) Active

ANKIT AGARWAL M.D.

Radiology, Therapeutic Radiology

📍1 INFINITY CORP CTR DR STE 101, GARFIELD HEIGHTS, OH, 44125

📞 650-940-7280

NPI: 1629430376

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Organization (NPI-2) Active

AHMC INTERNATIONAL CANCER CENTER A MEDICAL CORPORATION

📍605 N GARFIELD AVE, MONTEREY PARK, CA, 91754

📞 626-571-6100

NPI: 1336431600

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Individual (NPI-1) Active

FAISAL AHMED MD

📍STANFORD MEDICAL CENTER, DEPT. OF RADIATION ONCOLOGY, STANFORD, CA, 94305

📞 650-723-6171

NPI: 1427314855

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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