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Physician Assistants in O Fallon, MO

Browse 19 Physician Assistant providers listed in NPPES with a practice address in O Fallon, Missouri.

19 Healthcare Providers

How O Fallon compares with the U.S.

O Fallon has 20 Physician Assistants per 100,000 residents, about 41% of the U.S. rate of 49.

That is 19 active Physician Assistants with a practice address in O Fallon, for a population of 93,801.

The Missouri rate is 29 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.

100% of Physician Assistants in O Fallon listed in the CMS Medicare file (17 of 17) accept Medicare assignment. That is higher than the Missouri share of 94%.

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.

18% of Physician Assistants in O Fallon listed in the CMS Medicare file (3 of 17) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is similar to the Missouri share of 14%.

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 O Fallon, MO

Source: CMS PECOS
PECOS Enrolled Specialists 19 In O Fallon, MO
Part B Lab & Imaging Eligible 19 Diagnostic Referrals
DME Ordering Eligible 19 Durable Medical Equipment
Home Health Agency Referrals 19 HHA Ordering Eligible
Showing 1โ€“19 of 19 providers
With recent CMS data first, then Aโ€“Z

Jeneffer Avalos Topete , PA

Physician Assistant

Active NPI Status Accepts Medicare Assignment
9426 Phoenix Village Pkwy, O Fallon, MO 633684781
Phone: 6365615707
NPI Identifier 1952062689
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Riley B Busch , PA-C

Physician Assistant

Active NPI Status Accepts Medicare Assignment
1101 Highway K, O Fallon, MO 633668431
Phone: 6363796363
NPI Identifier 1013775238
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Acel Blake Camfield , PA

Physician Assistant

Active NPI Status Accepts Medicare Assignment
20 Progress Point Pkwy, Dept Orthopaedic Surgery, Ste 114, O Fallon, MO 633682206
Phone: 3145143500
NPI Identifier 1982215471
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Krista N. Carter , PA-C

Physician Assistant

Active NPI Status
7068 S Outer 364, O Fallon, MO 633687757
Phone: 6362406100
NPI Identifier 1043622277
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Natasha Brooke Fresenburg , PA-C

Physician Assistant

Active NPI Status
20 Progress Point Pkwy Ste 100, O Fallon, MO 633682207
Phone: 6363442400
NPI Identifier 1780020495
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Olivia Faeth Hasselfeld , PA

Physician Assistant

Active NPI Status Accepts Medicare Assignment
2 Progress Point Pkwy, Div Im Medical Oncology, O Fallon, MO 633682205
Phone: 8006472098
NPI Identifier 1194334094
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Krista E Jenkins , PA

Physician Assistant

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
20 Progress Point Pkwy Ste 108, O Fallon, MO 633682207
Phone: 6365771493
NPI Identifier 1598036071
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Sara Klein , PA-C

Physician Assistant

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
300 Winding Woods Dr Ste 222, O Fallon, MO 633664773
Phone: 6369788600
NPI Identifier 1689120776
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Jamie Marie Moravec , PA-C

Physician Assistant

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
20 Progress Point Pkwy Ste 202, O Fallon, MO 633682207
Phone: 6362168372
NPI Identifier 1659630648
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Christopher William Perry , PA

Physician Assistant

Active NPI Status Accepts Medicare Assignment
2 Progress Point Pkwy, Dept Emergency Med, O Fallon, MO 633682205
Phone: 3143629123
NPI Identifier 1609284645
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Amee Minton Rozanc , PA-C

Physician Assistant

Active NPI Status Accepts Medicare Assignment
9209 Phoenix Village Pkwy, O Fallon, MO 633684280
Phone: 6365614613
NPI Identifier 1255516134
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Rebecca J. Smith , PA-C

Physician Assistant

Active NPI Status Accepts Medicare Assignment
9209 Phoenix Village Pkwy, O Fallon, MO 633684280
Phone: 6365614630
NPI Identifier 1013030949
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Jacob William Vohsen , PA

Physician Assistant

Active NPI Status Accepts Medicare Assignment
2 Progress Point Pkwy, Dept Emergency Med, O Fallon, MO 633682205
Phone: 3143629123
NPI Identifier 1952014334
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Casey Wegener , PA-C

Physician Assistant

Active NPI Status Accepts Medicare Assignment
7136 S Outer 364, O Fallon, MO 633687756
Phone: 6365613277
NPI Identifier 1902293004
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Mariah White , PA-C

Physician Assistant

Active NPI Status Accepts Medicare Assignment
20 Progress Point Pkwy Ste 200, O Fallon, MO 633682207
Phone: 6369167060
NPI Identifier 1659731529
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Anna Boschert

Physician Assistant

Active NPI Status Accepts Medicare Assignment
20 Progress Point Pkwy Ste 206, O Fallon, MO 633682207
Phone: 6363441073
NPI Identifier 1568236578
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Katherine Dowell , PA-C

Physician Assistant

Active NPI Status Accepts Medicare Assignment
9209 Phoenix Village Pkwy, O Fallon, MO 633684280
Phone: 6365614613
NPI Identifier 1497501480
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Erin Friesen

Physician Assistant

Active NPI Status Accepts Medicare Assignment
2299 Technology Dr Ste 130, O Fallon, MO 633687342
Phone: 6366950400
NPI Identifier 1255028122
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Ralph Jay Skitt , PA-C

Physician Assistant

Active NPI Status Accepts Medicare Assignment
2299 Technology Dr Ste 130, O Fallon, MO 633687342
Phone: 6366950400
NPI Identifier 1639866502
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Frequently Asked Questions about Physician Assistant in O Fallon

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 Missouri 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.