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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 76–90 of 200 providers
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Individual (NPI-1) Active

CATHERINE T AQUINO FNP

Nurse Practitioner, Obstetrics & Gynecology

📍5427 WHITTIER BLVD, LOS ANGELES, CA, 90022

📞 323-869-1900

NPI: 1558594911

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Individual (NPI-1) Active

SUSAN G. AQUINO NP

Nurse Practitioner, Obstetrics & Gynecology

📍1177 N PARK AVE, POMONA, CA, 91768

📞 909-623-9900

NPI: 1427235027

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Individual (NPI-1) Active

CAROL L ARCHIE M.D.

Obstetrics & Gynecology, Maternal & Fetal Medicine

📍637 LUCAS AVE, LOS ANGELES, CA, 90017

📞 213-977-9714

NPI: 1922118041

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Individual (NPI-1) Active

MARYAM ARDALAN MD

Obstetrics & Gynecology, Obstetrics

📍25425 ORCHARD VILLAGE RD STE 270, SANTA CLARITA, CA, 91355

📞 661-260-1282

NPI: 1396936217

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Individual (NPI-1) Active

ROCIO ARGUETA Nurse Practitioner

Nurse Practitioner, Family

📍5300 LENNOX AVE STE 105, BAKERSFIELD, CA, 93309

📞 661-735-1710

NPI: 1396053369

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Individual (NPI-1) Active

DONALD ARMSTRONG M.D.

Obstetrics & Gynecology, Gynecology

📍100 E VALENCIA MESA DR, FULLERTON, CA, 92835

📞 714-879-6533

NPI: 1881672665

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Individual (NPI-1) Active

JOHN T ARMSTRONG MD

Obstetrics & Gynecology, Gynecology

📍3434 VILLA LN, NAPA, CA, 94558

📞 707-257-4317

NPI: 1790875995

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Individual (NPI-1) Active

RUTH A. ARMSTRONG NP

Registered Nurse, Community Health

📍2727 MARIPOSA ST STE 100, SAN FRANCISCO, CA, 94110

📞 415-437-3000

NPI: 1558419291

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Individual (NPI-1) Active

GINA L ARNOLD RN, NP

Nurse Practitioner, Obstetrics & Gynecology

📍347 E BARSTOW AVE, FRESNO, CA, 93710

📞 559-224-0900

NPI: 1033197249

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Individual (NPI-1) Active

MELANIE ARORA M.D.

Obstetrics & Gynecology, Gynecologic Oncology

📍16167 SISKIYOU RD, APPLE VALLEY, CA, 92307

📞 760-242-2146

NPI: 1578889283

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Individual (NPI-1) Active

JOHN C ARPELS

Obstetrics & Gynecology, Reproductive Endocrinology

📍5 BON AIR RD STE 109, LARKSPUR, CA, 94939

📞 415-924-9444

NPI: 1437229333

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Individual (NPI-1) Active

NICOLE D ARTHUR M.D.

Family Medicine

📍2720 LOW CT, FAIRFIELD, CA, 94534

📞 707-427-4900

NPI: 1104188697

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Individual (NPI-1) Active

REGINA LISA ARVON M.D.

Obstetrics & Gynecology, Maternal & Fetal Medicine

📍3700 CALIFORNIA ST, SAN FRANCISCO, CA, 94118

📞 215-868-1603

NPI: 1649483991

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Individual (NPI-1) Active

BETH ANNE ARY MD

Obstetrics & Gynecology, Reproductive Endocrinology

📍1441 AVOCADO AVE, NEWPORT BEACH, CA, 92660

📞 949-640-7200

NPI: 1750360665

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Individual (NPI-1) Active

AZIZEH ASGARI M.D.

Obstetrics & Gynecology, Gynecology

📍16040 W SUNSET BLVD, PACIFIC PALISADES, CA, 90272

📞 818-613-6046

NPI: 1396760120

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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