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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 46–60 of 200 providers
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Individual (NPI-1) Active

JADWIGA M ALEXIEWICZ MD

Internal Medicine, Nephrology

📍7910 FROST ST, SAN DIEGO, CA, 92123

📞 858-637-4700

NPI: 1760487458

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Individual (NPI-1) Active

TAMEEM ALHAYYA MD

Internal Medicine, Nephrology

📍250 E RINCON ST STE 106, CORONA, CA, 92879

📞 951-339-8459

NPI: 1649283557

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Individual (NPI-1) Active

HATEM ALI M.D.

Internal Medicine, Nephrology

📍7223 CHURCH ST STE A20, HIGHLAND, CA, 92346

📞 909-882-0702

NPI: 1821259466

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Individual (NPI-1) Active

NAUSHEEN ALI M.D.

Internal Medicine, Nephrology

📍1801 W ROMNEYA DR, ANAHEIM, CA, 92801

📞 714-956-5200

NPI: 1609869296

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Individual (NPI-1) Active

SAIYED ALI M.D.

Internal Medicine

📍2315 STOCKTON BLVD, SACRAMENTO, CA, 95817

📞 916-743-2011

NPI: 1639607294

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Individual (NPI-1) Active

SLAMAT ALI MD

Internal Medicine, Nephrology

📍3933 COFFEE RD STE B, BAKERSFIELD, CA, 93308

📞 559-228-6600

NPI: 1851546121

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Individual (NPI-1) Active

SYED ASAD ALI M.D.

Internal Medicine, Nephrology

📍333 UNIVERSITY AVE STE 120, SACRAMENTO, CA, 95825

📞 916-929-8564

NPI: 1376799858

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Individual (NPI-1) Active

SYEDA MF ALI MD

Internal Medicine, Nephrology

📍10 CONGRESS ST, PASADENA, CA, 91105

📞 626-578-7131

NPI: 1528051984

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Individual (NPI-1) Active

BEHZAD ALIMOHAMMADI MD

Internal Medicine, Nephrology

📍22550 SAVI RANCH PKWY, YORBA LINDA, CA, 92887

📞 714-279-6200

NPI: 1629156534

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Individual (NPI-1) Active

REZA ALLAMEHZADEH M.D

Internal Medicine

📍25982 PALA STE 170, MISSION VIEJO, CA, 92691

📞 949-581-2002

NPI: 1467606053

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Individual (NPI-1) Active

MOHAMAD MOUTAZ ALMAWALDI MD

Internal Medicine, Nephrology

📍5120 HILL RD E, LAKEPORT, CA, 95453

📞 707-263-4766

NPI: 1750390027

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Individual (NPI-1) Active

HASAN ALMOHSEN MD

Internal Medicine, Nephrology

📍4647 ZION AVE, SAN DIEGO, CA, 92120

📞 619-528-5000

NPI: 1225666704

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Individual (NPI-1) Active

AMMAR ALNASER M.D.

Internal Medicine, Nephrology

📍11550 INDIAN HILLS RD STE 371, MISSION HILLS, CA, 91345

📞 818-365-1194

NPI: 1073909370

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Individual (NPI-1) Active

MUNA ALNIMRI MD

Internal Medicine, Nephrology

📍2315 STOCKTON BLVD, SACRAMENTO, CA, 95817

📞 415-690-6812

NPI: 1407993264

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Individual (NPI-1) Active

JAFAR ALSAID MD

Internal Medicine, Nephrology

📍1514 JEFFERSON HWY, NEW ORLEANS, LA, 70121

📞 504-842-3930

NPI: 1073137733

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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