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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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Individual (NPI-1) Active

WILLIAM B CHERRY M.D.

Allergy & Immunology

📍7117 BROCKTON AVE, RIVERSIDE, CA, 92506

📞 951-782-3681

NPI: 1366429730

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Individual (NPI-1) Active

PATTY PENG-JUNG CHI MD

Allergy & Immunology

📍701 E EL CAMINO REAL, MOUNTAIN VIEW, CA, 94040

📞 650-934-7888

NPI: 1407898323

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Individual (NPI-1) Active

DEAN TING-YUAN CHIANG M.D.

Allergy & Immunology

📍3440 LOMITA BLVD, TORRANCE, CA, 90505

📞 310-326-3371

NPI: 1760484455

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Individual (NPI-1) Active

MICHAEL W. CHIEN MD

Allergy & Immunology, Allergy

📍9961 SIERRA AVE, FONTANA, CA, 92335

📞 909-427-3910

NPI: 1689741555

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Individual (NPI-1) Active

AARON THOMAS CHIN MD

Allergy & Immunology

📍1260 15TH ST STE 1002, SANTA MONICA, CA, 90404

📞 424-259-8570

NPI: 1487116638

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Individual (NPI-1) Active

WILLIAM K CHIN M.D.

Internal Medicine

📍34800 BOB WILSON DR, SAN DIEGO, CA, 92134

📞 619-532-6460

NPI: 1821062308

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Individual (NPI-1) Active

REBECCA SHARON CHINTHRAJAH M.D.

Internal Medicine, Allergy & Immunology

📍300 PASTEUR DR, PALO ALTO, CA, 94304

📞 650-723-4000

NPI: 1225235120

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Individual (NPI-1) Active

BRADLEY ELLIOTT CHIPPS M.D.

Allergy & Immunology, Allergy

📍5609 J STREET, SACRAMENTO, CA, 95819

📞 916-453-8696

NPI: 1073524740

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Individual (NPI-1) Active

JOHN T CHIU MD

Allergy & Immunology

📍400 NEWPORT CENTER DR, NEWPORT BEACH, CA, 92660

📞 949-644-1422

NPI: 1326121716

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Individual (NPI-1) Active

EUGENE Y CHOI MD

Allergy & Immunology, Allergy

📍2849 MARIPOSA DR, BURLINGAME, CA, 94010

📞 650-692-6543

NPI: 1659529386

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Individual (NPI-1) Active

SOO HYUN CHOI M.D.

Allergy & Immunology

📍6 WILLARD, IRVINE, CA, 92604

📞 888-988-2800

NPI: 1851596779

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Individual (NPI-1) Active

SUN MI CHOI M.D.

Allergy & Immunology

📍10833 LE CONTE AVE, LOS ANGELES, CA, 90095

📞 310-267-2680

NPI: 1306252101

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Individual (NPI-1) Active

MADELEINE BLAIR CHOLLET M.D., Ph.D.

Allergy & Immunology

📍4050 DUBLIN BLVD, DUBLIN, CA, 94568

📞 510-498-2350

NPI: 1518351667

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Individual (NPI-1) Active

EUGENE M CHOO M.D.

Allergy & Immunology

📍5 E 98TH ST, NEW YORK, NY, 10029

📞 212-241-0764

NPI: 1386818375

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Individual (NPI-1) Active

PREETI CHOPRA M.D.

Allergy & Immunology

📍451 W GONZALES RD, OXNARD, CA, 93036

📞 805-643-9986

NPI: 1699951202

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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