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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 181–195 of 200 providers
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Individual (NPI-1) Active

MARTIN SEBASTIAN ALLEN-AUERBACH MD

Nuclear Medicine

📍200 UCLA MEDICAL PLZ STE B114, LOS ANGELES, CA, 90095

📞 310-794-1005

NPI: 1750325973

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Individual (NPI-1) Active

EVAN RICHARD ALLGOOD M.D.

Radiology, Diagnostic Radiology

📍1500 SAN PABLO ST FL 2, LOS ANGELES, CA, 90033

📞 323-442-8541

NPI: 1528403557

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Individual (NPI-1) Active

MARK R. ALLGOOD M.D.

Radiology, Diagnostic Radiology

📍1155 MILL ST, RENO, NV, 89502

📞 775-982-8100

NPI: 1942206289

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Organization (NPI-2) Active

ALLIANCE HEALTHCARE SERVICES INC

Clinic/Center, Radiology, Mobile

📍700 S MAIN ST, MOSCOW, ID, 83843

📞 208-882-4511

NPI: 1649482712

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Organization (NPI-2) Active

ALLIANCE ONCOLOGY LLC

Clinic/Center, Oncology, Radiation

📍1 WALLACE BASHAW WAY, NEWBURYPORT, MA, 01950

📞 800-229-7226

NPI: 1386807576

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Organization (NPI-2) Active

ALLIANCE ONCOLOGY OF ALABAMA LLC

📍1110 S JACKSON HWY, SHEFFIELD, AL, 35660

📞 256-383-5211

NPI: 1013384056

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Organization (NPI-2) Active

ALLIANCE ONCOLOGY OF ALABAMA LLC

📍505 W LOUISE AVE, MUSCLE SHOALS, AL, 35661

📞 800-544-3215

NPI: 1245607142

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Organization (NPI-2) Active

ALLIANCE ONCOLOGY OF ALABAMA LLC

📍208 MARENGO ST, FLORENCE, AL, 35630

📞 256-760-1150

NPI: 1790152320

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Organization (NPI-2) Active

ALLIANCE ONCOLOGY OF ARIZONA, LLC

📍14506 W MEEKER BLVD, SUN CITY WEST, AZ, 85375

📞 623-584-8898

NPI: 1235647439

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Organization (NPI-2) Active

ALLIANCE ONCOLOGY OF ARIZONA, LLC

Internal Medicine, Hematology & Oncology

📍1876 E SABIN DR STE 10, CASA GRANDE, AZ, 85122

📞 520-836-1510

NPI: 1831697374

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Organization (NPI-2) Active

ALLIANCE ONCOLOGY OF ARIZONA, LLC

📍21300 N JOHN WAYNE PKWY STE 116, MARICOPA, AZ, 85139

📞 520-876-0416

NPI: 1790383701

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Organization (NPI-2) Active

ALLIANCE ONCOLOGY OF ARIZONA, LLC

📍7340 E THOMAS RD, SCOTTSDALE, AZ, 85251

📞 480-945-6896

NPI: 1710495916

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Organization (NPI-2) Active

ALLIANCE ONCOLOGY OF ARIZONA, LLC

Internal Medicine, Hematology & Oncology

📍1876 E SABIN DR STE 10, CASA GRANDE, AZ, 85122

📞 520-836-9800

NPI: 1164920328

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Organization (NPI-2) Active

ALLIANCE ONCOLOGY OF ARIZONA, LLC

📍13184 N 103RD DR, SUN CITY, AZ, 85351

📞 623-972-2902

NPI: 1689182883

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Individual (NPI-1) Active

ZAHORA NICOLA ALLY MD

📍4721 DALLAS RANCH RD, ANTIOCH, CA, 94531

📞 925-778-0679

NPI: 1306839915

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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