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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 136–150 of 200 providers
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Organization (NPI-2) Active

ASSOCIATED KIDNEY SPECIALISTS OF THE NORTH BAY, INC.

Internal Medicine, Nephrology

📍715 SOUTHPOINT BLVD, PETALUMA, CA, 94954

📞 707-765-1501

NPI: 1780842724

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Individual (NPI-1) Active

VINOD M ASSOMULL MD

Internal Medicine, Nephrology

📍10605 BALBOA BLVD, GRANADA HILLS, CA, 91344

📞 661-254-0193

NPI: 1982619359

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Individual (NPI-1) Active

AMBARISH MUKUND ATHAVALE MD

Internal Medicine, Nephrology

📍200 W ARBOR DR, SAN DIEGO, CA, 92103

📞 800-926-8273

NPI: 1255647145

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Individual (NPI-1) Active

RONALD MAR TENORIO ATILLO AG-ACNP-BC

Nurse Practitioner, Acute Care

📍200 W ARBOR DR, SAN DIEGO, CA, 92103

📞 800-926-8273

NPI: 1346747391

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Organization (NPI-2) Active

ATLANTIC EXPRESS CO INC

Internal Medicine, Nephrology

📍4252 BONITA RD, BONITA, CA, 91902

📞 619-829-1271

NPI: 1376774935

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Individual (NPI-1) Active

NAVEEN KUMAR ATRAY M.D.

Internal Medicine, Nephrology

📍1111 EXPOSITION BLVD, SACRAMENTO, CA, 95815

📞 916-564-6232

NPI: 1780608901

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Individual (NPI-1) Active

SUKHVIR SINGH ATWAL MD

Internal Medicine, Nephrology

📍568 E HERNDON AVE, FRESNO, CA, 93720

📞 559-228-6600

NPI: 1669685251

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Individual (NPI-1) Active

HARLEEN AUJLA M.D.

Internal Medicine, Nephrology

📍3351 M ST STE 125, MERCED, CA, 95348

📞 209-723-1020

NPI: 1144661000

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Individual (NPI-1) Active

NIRMAL S AUJLA MD

Internal Medicine, Nephrology

📍3351 M STREET, MERCED, CA, 95348

📞 209-723-1020

NPI: 1275637506

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Individual (NPI-1) Active

MICHAEL AUGUST AUSTERLITZ MD

Internal Medicine, Nephrology

📍4588 WHITTIER BLVD, LOS ANGELES, CA, 90022

📞 323-265-2917

NPI: 1912096454

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Organization (NPI-2) Active

AUSTIN POWER, APC

Internal Medicine, Nephrology

📍455 OCONNOR DR, SAN JOSE, CA, 95128

📞 408-998-5400

NPI: 1265727952

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Organization (NPI-2) Active

AVICCENNA MEDICAL GROUP

Internal Medicine, Nephrology

📍435 N BEDFORD DR, BEVERLY HILLS, CA, 90210

📞 310-858-1800

NPI: 1124264635

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Individual (NPI-1) Active

ADELA YNIGUEZ AYALA RN, NP

Nurse Practitioner

📍568 E HERNDON AVE STE 201, FRESNO, CA, 93720

📞 559-228-6600

NPI: 1235116138

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Individual (NPI-1) Active

HABIB AZAD M.D.

Internal Medicine, Nephrology

📍26800 CROWN VALLEY PKWY, MISSION VIEJO, CA, 92691

📞 949-364-0644

NPI: 1114962610

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Individual (NPI-1) Active

SARAH MAGED AZER MD

Internal Medicine, Nephrology

📍11370 ANDERSON ST STE 3300, LOMA LINDA, CA, 92354

📞 909-558-2860

NPI: 1710508346

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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