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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 46–60 of 200 providers
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Organization (NPI-2) Active

ANTELOPE VALLEY LUNG & SLEEP INSTITUTE, INC

Internal Medicine, Pulmonary Disease

📍1331 W AVENUE J STE 101, LANCASTER, CA, 93534

📞 661-945-8717

NPI: 1831658525

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Organization (NPI-2) Active

ANTELOPE VALLEY LUNG INSTITUTE MEDICAL GROUP

Internal Medicine, Pulmonary Disease

📍44105 15TH ST W, LANCASTER, CA, 93534

📞 661-945-8717

NPI: 1356765655

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Organization (NPI-2) Active

ANTELOPE VALLEY LUNG INSTITUTE MEDICAL GROUP

Internal Medicine, Pulmonary Disease

📍900 HERITAGE WAY, BLDG A, RIDGECREST, CA, 93555

📞 760-446-4571

NPI: 1831489152

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Organization (NPI-2) Active

ANTELOPE VALLEY LUNG INSTITUTE MEDICAL GROUP

Internal Medicine, Pulmonary Disease

📍20211 VALLEY BLVD, TEHACHAPI, CA, 93561

📞 661-945-8717

NPI: 1699184085

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Organization (NPI-2) Active

ANTELOPE VALLEY LUNG INSTITUTE MEDICAL GROUP

Internal Medicine, Pulmonary Disease

📍1535 N CHINA LAKE BLVD STE B, RIDGECREST, CA, 93555

📞 760-446-4656

NPI: 1467864371

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Organization (NPI-2) Active

ANTHONY J CUOMO MD INC

Internal Medicine, Pulmonary Disease

📍6699 ALVARADO RD, SAN DIEGO, CA, 92120

📞 619-462-9010

NPI: 1255430369

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Organization (NPI-2) Active

ANTHONY RUSSO, M.D., INC.

Internal Medicine, Pulmonary Disease

📍1750 EL CAMINO REAL, BURLINGAME, CA, 94010

📞 650-692-7545

NPI: 1871757906

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Organization (NPI-2) Active

APEX CRITICAL CARE INC A MEDICAL CORP

Internal Medicine, Critical Care Medicine

📍2029 VERDUGO ROAD UNIT 1024, MONTROSE, CA, 91020

📞 818-306-1477

NPI: 1972395796

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Organization (NPI-2) Active

APP PULMONARY GROUP

Internal Medicine, Pulmonary Disease

📍555 BLACK OAK DRIVE, MEDFORD, OR, 97504

📞 541-789-8100

NPI: 1346603479

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Organization (NPI-2) Active

AQUILA HEALTHCARE SOLUTIONS, INC.

Hospitalist

📍ST. JOHN'S REGIONAL MEDICAL CENTER - 1600 N ROSE AVE, OXNARD, CA, 93030

📞 805-988-2500

NPI: 1649891052

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Organization (NPI-2) Active

ARCH HEALTH PARTNERS

Internal Medicine

📍2125 CITRACADO PKWY STE 220, ESCONDIDO, CA, 92029

📞 760-489-1458

NPI: 1295329787

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Organization (NPI-2) Active

ARCH HEALTH PARTNERS, INC

Family Medicine

📍15611 POMERADO RD STE 400, POWAY, CA, 92064

📞 858-675-3100

NPI: 1649851619

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Organization (NPI-2) Active

ARIOSTO ROSADO INC

Internal Medicine, Critical Care Medicine

📍1100 BUTTE ST, REDDING, CA, 96001

📞 407-436-4517

NPI: 1811766868

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Organization (NPI-2) Active

ARMANDO HUARINGA MD INC

Internal Medicine, Critical Care Medicine

📍1700 E CESAR E CHAVEZ AVE, LOS ANGELES, CA, 90033

📞 323-260-5863

NPI: 1891986279

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Organization (NPI-2) Active

ARNOLD OSTROW MD INC.

Internal Medicine, Pulmonary Disease

📍3771 KATELLA AVE, LOS ALAMITOS, CA, 90720

📞 562-430-7533

NPI: 1336408657

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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