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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

GOOD NIGHT SLEEP CLINIC, INC

Psychiatry & Neurology, Sleep Medicine

📍12555 GARDEN GROVE BLVD, GARDEN GROVE, CA, 92843

📞 714-537-2300

NPI: 1942357579

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Organization (NPI-2) Active

GREATER CORONA SLEEP DIAGNOSTIC CENTER

Internal Medicine, Sleep Medicine

📍341 MAGNOLIA AVE STE 203, CORONA, CA, 92879

📞 951-735-9211

NPI: 1851589493

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Organization (NPI-2) Active

H.KENNETH FISHER,M.D.,INC.

Internal Medicine, Sleep Medicine

📍9400 BRIGHTON WAY, BEVERLY HILLS, CA, 90210

📞 310-553-0426

NPI: 1750507836

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Organization (NPI-2) Active

HARAMANDEEP SINGH MD INC

Psychiatry & Neurology, Sleep Medicine

📍2500 OLD CROW CANYON RD # 505, SAN RAMON, CA, 94583

📞 925-415-5353

NPI: 1316105802

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Organization (NPI-2) Active

HARAMANDEEP SINGH MEDICAL CORPORATION

Internal Medicine, Sleep Medicine

📍3415 S SEPULVEDA BLVD FL 10, LOS ANGELES, CA, 90034

📞 813-364-2670

NPI: 1225740541

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Organization (NPI-2) Active

HAROLD R. SMITH, M.D., INC

Psychiatry & Neurology, Sleep Medicine

📍4199 CAMPUS DR STE 350, IRVINE, CA, 92612

📞 949-509-7726

NPI: 1932326022

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Organization (NPI-2) Active

HARRISON HASANUDDIN, D.O., INC.

Family Medicine, Sleep Medicine

📍420 N GARFIELD AVE STE 203, MONTEREY PARK, CA, 91754

📞 626-763-1899

NPI: 1386323038

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Organization (NPI-2) Active

HIKMAT N DAGER MD PC

Internal Medicine, Pulmonary Disease

📍2501 W CHARLESTON BLVD, LAS VEGAS, NV, 89102

📞 702-382-7760

NPI: 1144474214

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Organization (NPI-2) Active

HIMANSHU V WICKRAMASINGHE MD INC

Internal Medicine, Pulmonary Disease

📍23928 LYONS AVE, NEWHALL, CA, 91321

📞 661-254-7216

NPI: 1043496094

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Organization (NPI-2) Active

HORIZON HEALTH SOLUTIONS INC

Family Medicine, Sleep Medicine

📍15200 RAYNETA DR, SHERMAN OAKS, CA, 91403

📞 917-331-7866

NPI: 1972430114

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Organization (NPI-2) Active

HOSPITAL & SLEEP MEDICINE CONSULTANTS PC

Internal Medicine, Pulmonary Disease

📍1555 EAST ST STE 330A, REDDING, CA, 96001

📞 530-330-4657

NPI: 1629940689

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Organization (NPI-2) Active

HOUMAN DAHI M.D., APC

Internal Medicine, Pulmonary Disease

📍501 WASHINGTON ST, SAN DIEGO, CA, 92103

📞 619-299-2570

NPI: 1699906883

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Organization (NPI-2) Active

HOWARD P. LEVY D.O., INC

Family Medicine

📍57370 29 PALMS HWY, YUCCA VALLEY, CA, 92284

📞 760-369-0069

NPI: 1285900340

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Organization (NPI-2) Active

HSIEN C YOUNG MD PC

Psychiatry & Neurology, Sleep Medicine

📍5266 HOLLISTER AVE STE 111, SANTA BARBARA, CA, 93111

📞 888-383-5168

NPI: 1962218891

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Organization (NPI-2) Active

HUNTINGTON PULMONARY MEDICAL GROUP

Internal Medicine, Pulmonary Disease

📍39 CONGRESS ST, PASADENA, CA, 91105

📞 626-486-0181

NPI: 1194113803

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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