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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 16–30 of 200 providers
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Individual (NPI-1) Active

MARIA TERESA ABREU M.D.

Internal Medicine, Gastroenterology

📍8700 BEVERLY BLVD STE AC1125, WEST HOLLYWOOD, CA, 90048

📞 310-423-4100

NPI: 1598793374

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Individual (NPI-1) Active

SAFWAT MAHER ABSOOD M.D.

Internal Medicine, Gastroenterology

📍500 COFFEE RD, MODESTO, CA, 95355

📞 209-576-1621

NPI: 1932113891

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Individual (NPI-1) Active

BARHAM K. ABU DAYYEH MD

Internal Medicine, Gastroenterology

📍8700 BEVERLY BLVD, WEST HOLLYWOOD, CA, 90048

📞 310-423-6082

NPI: 1902927353

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Individual (NPI-1) Active

EMAD M ABUHAMDA MD

Internal Medicine, Gastroenterology

📍6354 WALKER LN STE 400, ALEXANDRIA, VA, 22310

📞 571-472-7320

NPI: 1649228099

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Organization (NPI-2) Active

ACE GASTROENTEROLOGY ASSOCIATES INC

Internal Medicine, Gastroenterology

📍2006 N. RIVERSIDE AVENUE, RIALTO, CA, 92377

📞 909-881-3032

NPI: 1447671714

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Organization (NPI-2) Active

ACJN MEDICAL CORPORATION

Internal Medicine, Gastroenterology

📍2100 WEBSTER ST STE 115, SAN FRANCISCO, CA, 94115

📞 415-387-8800

NPI: 1376854034

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Individual (NPI-1) Active

RONALD N. ADAMANY M.D.

Internal Medicine, Gastroenterology

📍27871 MEDICAL CENTER RD, MISSION VIEJO, CA, 92691

📞 949-364-5090

NPI: 1992780688

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Individual (NPI-1) Active

MILES FRANKLIN ADLER M.D.

Internal Medicine, Gastroenterology

📍13847 E 14TH ST, SAN LEANDRO, CA, 94578

📞 510-357-8180

NPI: 1760414502

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Individual (NPI-1) Active

RONALD ADLER MD

Internal Medicine, Gastroenterology

📍1411 E 31ST STREET, OAKLAND, CA, 94602

📞 510-437-4323

NPI: 1134206162

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Organization (NPI-2) Active

ADULT & PEDIATRIC GASTROENTEROLOGY MEDICAL CENTER

Internal Medicine, Gastroenterology

📍111 DEERWOOD RD, SAN RAMON, CA, 94583

📞 925-736-8228

NPI: 1538367818

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Organization (NPI-2) Active

ADVANCED DIGESTIVE MEDICAL CENTER CORP

Internal Medicine, Gastroenterology

📍1360 BAILEY ST, HANFORD, CA, 93230

📞 559-584-6499

NPI: 1578716098

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Organization (NPI-2) Active

ADVANCED ENDOSCOPY CONSULTANTS

Internal Medicine, Gastroenterology

📍9456 CUYAMACA ST STE 102, SANTEE, CA, 92071

📞 619-588-4074

NPI: 1770889297

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Organization (NPI-2) Active

ADVANCED GASTROENTEROLOGY OF MONTEREY COUNTY MEDICAL CORP

Internal Medicine, Gastroenterology

📍1441 CONSTITUTION BLVD, SALINAS, CA, 93906

📞 831-755-6352

NPI: 1285780692

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Organization (NPI-2) Active

ADVANCED GASTROENTEROLOGY, INC.

Internal Medicine, Gastroenterology

📍555 MARIN ST STE 270, THOUSAND OAKS, CA, 91360

📞 805-719-0244

NPI: 1497970875

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Organization (NPI-2) Active

ADVANCED GI CONSULTANTS MEDICAL GROUP, INC

Internal Medicine

📍1118 S GARFIELD AVE # 203, ALHAMBRA, CA, 91801

📞 626-289-5688

NPI: 1356404875

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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