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Physician Assistants in Fontana, CA

Browse 97 Physician Assistant providers listed in NPPES with a practice address in Fontana, California.

97 Healthcare Providers

How Fontana compares with the U.S.

Fontana has 45 Physician Assistants per 100,000 residents, close to the U.S. rate of 49.

That is 97 active Physician Assistants with a practice address in Fontana, for a population of 214,169.

The California rate is 37 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.

93% of Physician Assistants in Fontana listed in the CMS Medicare file (42 of 45) accept Medicare assignment. That is similar to the California share of 92%.

Only 45 of 97 active Physician Assistants in Fontana appear in the CMS Medicare file, so this share describes that smaller group.

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.

13% of Physician Assistants in Fontana listed in the CMS Medicare file (6 of 45) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is lower than the California share of 28%.

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).

Physician Assistant Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Physician Assistant practitioners in Fontana, CA

Source: CMS PECOS
PECOS Enrolled Specialists 64 In Fontana, CA
Part B Lab & Imaging Eligible 63 Diagnostic Referrals
DME Ordering Eligible 64 Durable Medical Equipment
Home Health Agency Referrals 63 HHA Ordering Eligible
Showing 1โ€“20 of 97 providers
With recent CMS data first, then Aโ€“Z

Martha C Ajca , PA-C

Physician Assistant

Active NPI Status Accepts Medicare Assignment
17051 Sierra Lakes Parkway, Suite 101, Fontana, CA 92336
Phone: 9094282040
NPI Identifier 1396175758
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Jennifer C Alderson , PA

Physician Assistant

Active NPI Status
9961 Sierra Ave, Fontana, CA 923356720
Phone: 9094273910
NPI Identifier 1467529214
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Greg G Altman , PA

Physician Assistant

Active NPI Status
9961 Sierra Ave, Fontana, CA 923356720
Phone: 9094273910
NPI Identifier 1538228267
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Aaron Asad

Physician Assistant

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
9985 Sierra Ave, Fontana, CA 923356720
Phone: 8335742273
NPI Identifier 1336748565
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Yaw O Asamoah , PA-C

Physician Assistant

Active NPI Status
6309 Camelback Ln, Fontana, CA 923365830
Phone: 2138049776
NPI Identifier 1083917439
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Christopher Blanchfield , PA

Physician Assistant

Active NPI Status
9961 Sierra Ave, Fontana, CA 923356720
Phone: 9094273910
NPI Identifier 1043387897
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Khristine Marie Bueno , PA-C

Physician Assistant

Active NPI Status Accepts Medicare Assignment
16465 Sierra Lakes Pkwy Ste 100, Fontana, CA 923361242
Phone: 9094341150
NPI Identifier 1811356439
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Lindsay H Chiu , PA

Physician Assistant

Active NPI Status
9961 Sierra Ave, Fontana, CA 923356720
Phone: 9094273910
NPI Identifier 1972670719
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Giuliana Cilliani , PA-C

Physician Assistant

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
16465 Sierra Lakes Pkwy Ste 300, Fontana, CA 923361242
Phone: 9094292864
NPI Identifier 1043504913
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Stephanie Clark-Poveda , PA

Physician Assistant

Active NPI Status Accepts Medicare Assignment
9961 Sierra Ave, Fontana, CA 923356720
Phone: 9094273910
NPI Identifier 1881761120
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Dawn M W Comstock , PA

Physician Assistant

Active NPI Status Accepts Medicare Assignment
9961 Sierra Ave, Fontana, CA 923356720
Phone: 9094273910
NPI Identifier 1104993948
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Beverly L Correa , PA-C

Physician Assistant

Active NPI Status
17284 Slover Ave, Fontana, CA 923377584
Phone: 8335742273
NPI Identifier 1902319346
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Lauren Kelly Crostic , PA-C

Physician Assistant

Active NPI Status
16465 Sierra Lakes Pkwy, 300, Fontana, CA 923361242
Phone: 9094292864
NPI Identifier 1215385448
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Natalie D Dale , PA

Physician Assistant

Active NPI Status Accepts Medicare Assignment
9961 Sierra Ave, Fontana, CA 923356720
Phone: 9094273910
NPI Identifier 1477601318
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Jennifer M Dejarnett , PA

Physician Assistant

Active NPI Status Accepts Medicare Assignment
9961 Sierra Ave, Fontana, CA 923356720
Phone: 9094273910
NPI Identifier 1639295884
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David K Denkers , PA

Physician Assistant

Active NPI Status Accepts Medicare Assignment
9961 Sierra Ave, Fontana, CA 923356720
Phone: 9094273910
NPI Identifier 1104985811
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John M D'spain , PA

Physician Assistant

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
9961 Sierra Ave, Fontana, CA 923356720
Phone: 8664543485
NPI Identifier 1346550381
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Renee M Echandi , PA

Physician Assistant

Active NPI Status Accepts Medicare Assignment
9961 Sierra Ave, Fontana, CA 923356720
Phone: 9094273910
NPI Identifier 1811056526
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Brittani M Filek , PA

Physician Assistant

Active NPI Status Accepts Medicare Assignment
9961 Sierra Ave, Fontana, CA 923356720
Phone: 9094273910
NPI Identifier 1437226271
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Miguel Garcia , PA-C

Physician Assistant

Active NPI Status
16980 Foothill Blvd, Fontana, CA 923353569
Phone: 9094340808
NPI Identifier 1568656262
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Frequently Asked Questions about Physician Assistant in Fontana

How do I check a Physician Assistant 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.