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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 166–180 of 200 providers
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Individual (NPI-1) Active

HUYEN CAO MD

Internal Medicine, Infectious Disease

📍400 PARNASSUS AVE, SAN FRANCISCO, CA, 94143

📞 415-476-9936

NPI: 1700842234

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Individual (NPI-1) Active

JOSEPH CAPERNA M.D.

Internal Medicine, Infectious Disease

📍2333 1ST AVE STE 104, SAN DIEGO, CA, 92101

📞 619-795-1975

NPI: 1720141153

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Individual (NPI-1) Active

AARON FOSTER CARLIN M.D., Ph.D.

Internal Medicine, Infectious Disease

📍3350 LA JOLLA VILLAGE DR, SAN DIEGO, CA, 92161

📞 858-552-8585

NPI: 1760718035

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Individual (NPI-1) Active

MARGRIT ELLEN CARLSON MD

Internal Medicine, Infectious Disease

📍1399 ROXBURY DR, LOS ANGELES, CA, 90035

📞 310-557-1891

NPI: 1497780878

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Individual (NPI-1) Active

E DUANE CARMALT M.D.

Internal Medicine, Infectious Disease

📍5620 WILBUR AVE, TARZANA, CA, 91356

📞 818-881-9255

NPI: 1952597627

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Individual (NPI-1) Active

BRIAN JAMES CARPENTER DO

Internal Medicine

📍5050 NE HOYT ST STE 540, PORTLAND, OR, 97213

📞 503-215-6601

NPI: 1912403395

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Individual (NPI-1) Active

KRISTIN ANNE CARR MD

Internal Medicine, Infectious Disease

📍11234 ANDERSON ST, LOMA LINDA, CA, 92354

📞 760-585-8944

NPI: 1750768362

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Individual (NPI-1) Active

MARYTERE CARRASQUILLO NAVARRO MD

Internal Medicine

📍680 COHASSET RD, CHICO, CA, 95926

📞 530-342-4395

NPI: 1851751408

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Individual (NPI-1) Active

STEPHEN LLOYD CATALYA MD

Internal Medicine, Infectious Disease

📍400 TAYLOR BLVD STE 102, PLEASANT HILL, CA, 94523

📞 925-671-7629

NPI: 1881100832

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Individual (NPI-1) Active

THOMAS C CESARIO MD

Internal Medicine, Infectious Disease

📍UCI MEDICAL CENTER, ORANGE, CA, 92868

📞 714-456-8978

NPI: 1265512354

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Individual (NPI-1) Active

PUNEET KAUR CHAHAL MD

Internal Medicine, Infectious Disease

📍720 N TUSTIN AVE, SANTA ANA, CA, 92705

📞 714-664-0045

NPI: 1811155476

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Individual (NPI-1) Active

ANINDITA CHAKRABARTI M.D.

Internal Medicine

📍450 STANYAN ST., SAN FRANCISCO, CA, 94117

📞 415-750-5909

NPI: 1649446345

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Individual (NPI-1) Active

MELONY CHAKRABARTY MD

Internal Medicine, Infectious Disease

📍4860 Y ST STE 101, SACRAMENTO, CA, 95817

📞 916-734-2737

NPI: 1316382963

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Individual (NPI-1) Active

NONA CHAMANKHAH PharmD

Pharmacist, Infectious Diseases

📍3020 CHILDRENS WAY, SAN DIEGO, CA, 92123

📞 858-576-1700

NPI: 1689528374

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Individual (NPI-1) Active

HENRY FORREST CHAMBERS III MD

Internal Medicine, Infectious Disease

📍1001 POTRERO AVENUE, SAN FRANCISCO, CA, 94110

📞 415-206-5438

NPI: 1184715773

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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