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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 61–75 of 200 providers
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Individual (NPI-1) Active

NOOR ALI

Internal Medicine, Gastroenterology

📍1526 N EDGEMONT ST, LOS ANGELES, CA, 90027

📞 323-783-0141

NPI: 1700273422

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Individual (NPI-1) Active

SHAZIA ALI M.D.

Internal Medicine, Gastroenterology

📍24221 CALLE DE LA LOUISA STE 300, LAGUNA HILLS, CA, 92653

📞 949-334-8270

NPI: 1063616217

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Individual (NPI-1) Active

OMEED ALIPOUR M.D.

Internal Medicine, Gastroenterology

📍1000 FIVEPOINT STE A, IRVINE, CA, 92618

📞 800-826-4673

NPI: 1841731080

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Individual (NPI-1) Active

OUSAMA ALKHATIB MD

Internal Medicine, Gastroenterology

📍1010 W LA VETA AVE STE 570, ORANGE, CA, 92868

📞 714-835-7700

NPI: 1093283905

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Individual (NPI-1) Active

SATYA B ALLAPARTHI MD

Internal Medicine, Gastroenterology

📍19845 LAKE CHABOT RD STE 104, CASTRO VALLEY, CA, 94546

📞 510-537-4415

NPI: 1699960815

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Individual (NPI-1) Active

EVA M ALLEN

Registered Nurse, Gastroenterology

📍1425 S MAIN ST, WALNUT CREEK, CA, 94596

📞 925-295-5470

NPI: 1538365093

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Individual (NPI-1) Active

JAMES EDWARD ALLISON MD

Internal Medicine, Gastroenterology

📍1001 POTRERO AVENUE, SAN FRANCISCO, CA, 94110

📞 415-206-8822

NPI: 1265535777

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Individual (NPI-1) Active

MAZER RICKY ALLY M.D.

Internal Medicine, Gastroenterology

📍2205 VISTA WAY STE 340, OCEANSIDE, CA, 92054

📞 760-704-5870

NPI: 1902018666

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Individual (NPI-1) Active

CHRISTOPHER VELASQUEZ ALMARIO M.D.

Internal Medicine, Gastroenterology

📍11301 WILSHIRE BLVD, LOS ANGELES, CA, 90073

📞 310-478-3711

NPI: 1568606036

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Individual (NPI-1) Active

JOSE ANTONIO NAVARRO ALMARIO MD

Internal Medicine, Gastroenterology

📍2929 HEALTH CENTER DR, SAN DIEGO, CA, 92123

📞 858-939-6531

NPI: 1467815944

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Individual (NPI-1) Active

AMER ALSAMMAN MD

Internal Medicine, Gastroenterology

📍3700 W 203RD ST STE 201, OLYMPIA FIELDS, IL, 60461

📞 708-852-2780

NPI: 1558701540

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Individual (NPI-1) Active

ALAN RAYMOND ALTMAN M.D.

Internal Medicine, Gastroenterology

📍10 MARSEILLES RD, RANCHO MIRAGE, CA, 92270

📞 760-770-6065

NPI: 1598002750

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Individual (NPI-1) Active

MOE AMADPOUR M.D.

Internal Medicine, Gastroenterology

📍1159 ROADRUNNER WAY, SIMI VALLEY, CA, 93065

📞 805-583-2643

NPI: 1508965476

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Individual (NPI-1) Active

ADNAN AMEER M.D.

Internal Medicine, Gastroenterology

📍1225 WILSHIRE BLVD, LOS ANGELES, CA, 90017

📞 213-977-2121

NPI: 1346554201

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Individual (NPI-1) Active

JIM AMERIAN M.D.

Internal Medicine, Gastroenterology

📍18425 BURBANK BLVD, TARZANA, CA, 91356

📞 818-708-6000

NPI: 1366400194

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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