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Nuclear Medicine Providers in San Diego, CA

Browse 12 Nuclear Medicine providers listed in NPPES with a practice address in San Diego, California.

12 Healthcare Providers

How San Diego compares with the U.S.

San Diego has 0.9 clinicians in Nuclear Medicine per 100,000 residents, 3.9 times the U.S. rate of 0.2.

That is 12 active clinicians in Nuclear Medicine with a practice address in San Diego, for a population of 1,389,526.

The California rate is 0.4 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

Too few clinicians in Nuclear Medicine in San Diego are listed in the CMS Medicare file to report Medicare assignment or telehealth shares.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Showing 1โ€“12 of 12 providers
With recent CMS data first, then Aโ€“Z

Dr. Samuel Elliot Halpern , MD

Nuclear Medicine

Active NPI Status
200 W Arbor Dr, San Diego, CA 921039001
Phone: 6195436680
NPI Identifier 1629000880
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Dr. Carl K Hoh , MD

Nuclear Medicine

Active NPI Status
200 W Arbor Dr, San Diego, CA 92103
Phone: 8009268273
NPI Identifier 1962427682
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Dr. Ryan Ha Pham , MD

Nuclear Medicine

Active NPI Status Accepts Medicare Assignment
200 W Arbor Dr, San Diego, CA 921039000
Phone: 8009268273
NPI Identifier 1578666806
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Dr. Amir H Rad , MD

Nuclear Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
200 W Arbor Dr, San Diego, CA 921039000
Phone: 8009268273
NPI Identifier 1710262472
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Dr. Guy A. Ravad , MD

Nuclear Medicine

Active NPI Status Accepts Medicare Assignment
4647 Zion Ave, San Diego, CA 921202507
Phone: 6195285000
NPI Identifier 1447319017
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Dr. Jon Thomas Umlauf , MD

Nuclear Medicine

Active NPI Status Accepts Medicare Assignment
4647 Zion Ave, San Diego, CA 921202507
Phone: 2066165781
NPI Identifier 1356332373
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Dr. Kousha Zarnegar , MD

Nuclear Medicine

Active NPI Status Accepts Medicare Assignment
200 W Arbor Dr, San Diego, CA 921039000
Phone: 8009268273
NPI Identifier 1326082876
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Dr. Ernest V. Belezzuoli , MD

Nuclear Medicine

Active NPI Status
3350 La Jolla Village Dr, San Diego, CA 921610002
Phone: 8585527511
NPI Identifier 1083703805
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Frank J Papatheofanis

Nuclear Medicine

Active NPI Status
200 West Arbor Dr, Ucsd Radop;pgu Mc 8758, San Diego, CA 921038758
Phone: 6195436681
NPI Identifier 1275702797
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Suzan S Parhizgar

Nuclear Medicine

Active NPI Status Accepts Medicare Assignment
200 W Arbor Dr, San Diego, CA 921039000
Phone: 8009268273
NPI Identifier 1144607383
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Dr. Michael D Starsiak , MD

Nuclear Medicine

Active NPI Status
Naval Medical Center San Diego, 34800 Bob Wilson Dr, San Diego, CA 921341098
Phone: 6195328775
NPI Identifier 1740216738
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Dr. Xueren Zhao , MD

Nuclear Medicine

Active NPI Status Accepts Medicare Assignment
200 W Arbor Dr, San Diego, CA 921039000
Phone: 8009268273
NPI Identifier 1417180290
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Frequently Asked Questions about Nuclear Medicine in San Diego

How do I check a Nuclear Medicine practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the California licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.