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Specialists in Fountain Valley, CA

Browse 34 Specialist providers listed in NPPES with a practice address in Fountain Valley, California.

34 Healthcare Providers

How Fountain Valley compares with the U.S.

Fountain Valley has 60 Specialists per 100,000 residents, 3.3 times the U.S. rate of 18.

That is 34 active Specialists with a practice address in Fountain Valley, for a population of 56,258.

The California rate is 15 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.

89% of Specialists in Fountain Valley listed in the CMS Medicare file (17 of 19) accept Medicare assignment. That is similar to the California share of 92%.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

42% of Specialists in Fountain Valley listed in the CMS Medicare file (8 of 19) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is higher than the California share of 29%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

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. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Specialist Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Specialist practitioners in Fountain Valley, CA

Source: CMS PECOS
PECOS Enrolled Specialists 22 In Fountain Valley, CA
Part B Lab & Imaging Eligible 21 Diagnostic Referrals
DME Ordering Eligible 21 Durable Medical Equipment
Home Health Agency Referrals 21 HHA Ordering Eligible
Showing 1โ€“20 of 34 providers
With recent CMS data first, then Aโ€“Z

Dr. Mir Baquar Ali , MD

Specialist

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
18111 Brookhurst Street, Suite 5600, Fountain Valley, CA 927086728
Phone: 7148614666
NPI Identifier 1184689663
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Dr. Eun Kwang Byun , MD

Specialist

Active NPI Status Accepts Medicare Assignment
10419 Slater Ave Apt 107, Fountain Valley, CA 927087704
Phone: 6467172533
NPI Identifier 1861683047
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Dr. Philip Lou Chin , MD

Specialist

Active NPI Status Accepts Medicare Assignment
11160 Warner Ave, Suite 421, Fountain Valley, CA 927084008
Phone: 7149662009
NPI Identifier 1548224629
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Active NPI Status
9900 Talbert Ave Ste 103a, Fountain Valley, CA 927085153
Phone: 6572590050
NPI Identifier 1538373725
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Dr. Eugene D. Elliott , MD

Specialist

Active NPI Status
9900 Talbert Ave, 101, Fountain Valley, CA 927085153
Phone: 7142410646
NPI Identifier 1205850336
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Dr. Kelly Francis , MD

Specialist

Active NPI Status
18111 Brookhurst St, Suite 6400, Fountain Valley, CA 927086728
Phone: 7143507258
NPI Identifier 1497719504
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Dr. Sara Michelle Grannis , DPT, OCS, ATC

Specialist

Active NPI Status Accepts Medicare Assignment
11180 Warner Ave, #363, Fountain Valley, CA 927087501
Phone: 7145426646
NPI Identifier 1972531317
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Active NPI Status Accepts Medicare Assignment
10840 Warner Ave, Suite 109, Fountain Valley, CA 927083847
Phone: 7149623661
NPI Identifier 1417010182
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Active NPI Status Accepts Medicare Assignment Telehealth Services Available
11180 Warner Ave, Ste 351, Fountain Valley, CA 927087516
Phone: 7146980300
NPI Identifier 1578566998
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Dr. Jane L. Kakkis , MD

Specialist

Active NPI Status Accepts Medicare Assignment
9900 Talbert Ave, Suite 100, Fountain Valley, CA 927085153
Phone: 7143785011
NPI Identifier 1598715427
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Dr. Kristin J Laporte , MD

Specialist

Active NPI Status Accepts Medicare Assignment
9940 Talbert Ave, Suite 303, Fountain Valley, CA 927085153
Phone: 7143785606
NPI Identifier 1942400148
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Dr. Jooyoung Montoya , MD

Specialist

Active NPI Status
9940 Talbert Ave, Suite 303, Fountain Valley, CA 927085153
Phone: 7143785606
NPI Identifier 1922063825
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Dr. Meagan Marie Moore , MD

Specialist

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
9900 Talbert Ave Ste 202, Fountain Valley, CA 927085153
Phone: 7143785552
NPI Identifier 1447388244
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Active NPI Status Accepts Medicare Assignment
10760 Warner Ave Ste 201, Fountain Valley, CA 927083857
Phone: 7145935356
NPI Identifier 1720090921
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Dr. Linh Dan Nguyen , MD

Specialist

Active NPI Status Telehealth Services Available
9940 Talbert Ave, Suite 303, Fountain Valley, CA 927085153
Phone: 7143785606
NPI Identifier 1619932506
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Dr. Quan Hoang Nguyen , MD

Specialist

Active NPI Status Accepts Medicare Assignment
10175 Slater Ave Ste 100, Fountain Valley, CA 927084702
Phone: 7149799911
NPI Identifier 1760402770
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Dr. Janet Pan , MD

Specialist

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
11180 Warner Ave Ste 351, Fountain Valley, CA 927087516
Phone: 7146980300
NPI Identifier 1801056676
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Dr. Anatol Podolsky , MD

Specialist

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
18035 Brookhust Street Suite 1200, Fountain Valley, CA 927089270
Phone: 9496446882
NPI Identifier 1528178936
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Dr. Peyman Salimi-Tari , MD

Specialist

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
11180 Warner Ave Ste 351, Fountain Valley, CA 927087516
Phone: 7146980300
NPI Identifier 1639238371
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Dr. Harpreet Singh , MD

Specialist

Active NPI Status Accepts Medicare Assignment
11180 Warner Ave, # 165, Fountain Valley, CA 927087501
Phone: 7144295886
NPI Identifier 1295914216
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Frequently Asked Questions about Specialist in Fountain Valley

How do I check a Specialist 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.