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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 91–105 of 200 providers
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Individual (NPI-1) Active

ANDREW S. ARTZ M.D., M.S.

Internal Medicine, Hematology

📍1500 E DUARTE ROAD, DUARTE, CA, 91010

📞 626-256-4673

NPI: 1306859772

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Individual (NPI-1) Active

ARUN KUMAR ARUMUGAM RAAJASEKAR MD

Internal Medicine, Hematology & Oncology

📍2505 HOSPITAL DR, MOUNTAIN VIEW, CA, 94040

📞 650-988-8338

NPI: 1801143722

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Individual (NPI-1) Active

KARO K ARZOO M.D.

Internal Medicine, Hematology & Oncology

📍201 S BUENA VISTA ST STE 200, BURBANK, CA, 91505

📞 818-842-8252

NPI: 1306862859

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Individual (NPI-1) Active

HANNAH HAMIDEH ASGHARI MD

Internal Medicine, Hematology & Oncology

📍44151 15TH ST W STE 101, LANCASTER, CA, 93534

📞 661-902-5600

NPI: 1891114583

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Individual (NPI-1) Active

SHAHRYAR A. ASHOURI M.D.

Internal Medicine, Hematology & Oncology

📍1250 LA VENTA DR STE 211, WESTLAKE VILLAGE, CA, 91361

📞 805-496-5153

NPI: 1609946169

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Individual (NPI-1) Active

DEVI JANE DE GUZMAN ASUNCION MD

Internal Medicine, Hematology & Oncology

📍411 N LAKEVIEW AVE, ANAHEIM, CA, 92807

📞 888-988-2800

NPI: 1538367875

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Individual (NPI-1) Active

JOSHUA OLAJIDE ATIBA MD

Internal Medicine, Hematology & Oncology

📍1380 SAN ANDREAS RD, LA SELVA BEACH, CA, 95076

📞 831-761-1100

NPI: 1689756546

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Individual (NPI-1) Active

DANIELLE FRANCOISE ATIBALENTJA M.D., Ph.D.

Internal Medicine, Hematology

📍600 HIGHLAND AVE, MADISON, WI, 53792

📞 608-915-0100

NPI: 1952752305

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Individual (NPI-1) Active

SHIRIN ATTARIAN M.D.

Internal Medicine, Hematology & Oncology

📍101 THE CITY DR S, ORANGE, CA, 92868

📞 714-456-8000

NPI: 1427310713

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Individual (NPI-1) Active

CHERRY AU

Internal Medicine, Hematology & Oncology

📍1441 EASTLAKE AVE, LOS ANGELES, CA, 90089

📞 800-872-2273

NPI: 1346828076

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Individual (NPI-1) Active

ROMANY AUCLAIR MD

Pathology, Anatomic Pathology & Clinical Pathology

📍183 E 8TH AVE, CHICO, CA, 95926

📞 530-891-6244

NPI: 1235592957

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Individual (NPI-1) Active

MOUNI WILLIAM AUDEH M.D.

Internal Medicine, Hematology & Oncology

📍8700 BEVERLY BLVD, WEST HOLLYWOOD, CA, 90048

📞 310-423-1188

NPI: 1265592174

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Individual (NPI-1) Active

DAVID L AUSTIN MD

Internal Medicine, Hematology & Oncology

📍2501 N SEPULVEDA BLVD STE 100, MANHATTAN BEACH, CA, 90266

📞 310-546-4599

NPI: 1114930435

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Individual (NPI-1) Active

V. REDDY AVULA MD

Internal Medicine, Hematology & Oncology

📍1381 E HERNDON AVE, FRESNO, CA, 93720

📞 559-497-8500

NPI: 1740209295

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Individual (NPI-1) Active

NELLY AWKAR LAZO M.D

Internal Medicine, Hematology & Oncology

📍11480 BROOKSHIRE AVE, DOWNEY, CA, 90241

📞 562-869-1201

NPI: 1326351537

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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