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Nurse Practitioners in O Fallon, IL

Browse 19 Nurse Practitioner providers listed in NPPES with a practice address in O Fallon, Illinois.

19 Healthcare Providers

How O Fallon compares with the U.S.

O Fallon has 59 Nurse Practitioners per 100,000 residents, 2.0 times the U.S. rate of 29.

That is 19 active Nurse Practitioners with a practice address in O Fallon, for a population of 32,262.

The Illinois rate is 39 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.

100% of Nurse Practitioners in O Fallon listed in the CMS Medicare file (15 of 15) accept Medicare assignment. That is similar to the Illinois share of 96%.

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.

None of the 15 Nurse Practitioners in O Fallon listed in the CMS Medicare file have a CMS telehealth indicator. Some may still offer telehealth; ask the office.

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).

Nurse Practitioner Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Nurse Practitioner practitioners in O Fallon, IL

Source: CMS PECOS
PECOS Enrolled Specialists 17 In O Fallon, IL
Part B Lab & Imaging Eligible 17 Diagnostic Referrals
DME Ordering Eligible 17 Durable Medical Equipment
Home Health Agency Referrals 17 HHA Ordering Eligible
Showing 1โ€“19 of 19 providers
With recent CMS data first, then Aโ€“Z

Kimberly Burgess , AGNP-C

Nurse Practitioner

Active NPI Status
670 Pierce Blvd, O Fallon, IL 622692579
Phone: 6182062094
NPI Identifier 1164956066
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Rachael Demattei , APRN

Nurse Practitioner

Active NPI Status Accepts Medicare Assignment
321 Regency Park Ste 100, O Fallon, IL 622691887
Phone: 6184167970
NPI Identifier 1891443289
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Marianne Guthrie

Nurse Practitioner

Active NPI Status Accepts Medicare Assignment
3 Saint Elizabeth Blvd Ste 200, O Fallon, IL 622691281
Phone: 6182342120
NPI Identifier 1609313758
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Charissa Faith Holesko , ANP

Nurse Practitioner

Active NPI Status Accepts Medicare Assignment
3 Saint Elizabeth Blvd, O Fallon, IL 622691281
Phone: 6186415803
NPI Identifier 1619343274
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Jodi Jany , AGNP

Nurse Practitioner

Active NPI Status Accepts Medicare Assignment
3 Saint Elizabeth Blvd Ste 3800, O Fallon, IL 622691281
Phone: 6182342120
NPI Identifier 1811357833
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Katherine Ann Jones , APRN

Nurse Practitioner

Active NPI Status Accepts Medicare Assignment
3 Saint Elizabeth Blvd, O Fallon, IL 622691281
Phone: 6186415803
NPI Identifier 1972229987
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Katy Jo Lorenzo

Nurse Practitioner

Active NPI Status Accepts Medicare Assignment
1 Saint Elizabeth Blvd, O Fallon, IL 622691099
Phone: 6182342120
NPI Identifier 1205348133
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Dr. Michelle Denise Mcquillan , DNP, FNP-BC

Nurse Practitioner

Active NPI Status Accepts Medicare Assignment
321 Regency Park, O'fallon, IL 62269
Phone: 6184167970
NPI Identifier 1013533819
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Sarah Jane Poirot , NP-C

Nurse Practitioner

Active NPI Status Accepts Medicare Assignment
670 Pierce Blvd, O Fallon, IL 622692579
Phone: 6186241860
NPI Identifier 1558800813
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Amanda S Schmitt , ACNP

Nurse Practitioner

Active NPI Status Accepts Medicare Assignment
3 Saint Elizabeth Blvd Ste 3200, O Fallon, IL 622691281
Phone: 6184898030
NPI Identifier 1912361411
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Macee Noelle Smith , CNP

Nurse Practitioner

Active NPI Status Accepts Medicare Assignment
3 Saint Elizabeth Blvd Ste 3800, O Fallon, IL 622691281
Phone: 6182342120
NPI Identifier 1467028019
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Elayna Leah Temares , FNP-BC

Nurse Practitioner

Active NPI Status Accepts Medicare Assignment
3 Saint Elizabeth Blvd Ste 5000, O Fallon, IL 622691099
Phone: 6186415803
NPI Identifier 1255848214
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Bethany Varel

Nurse Practitioner

Active NPI Status Accepts Medicare Assignment
320 E Highway 50, O Fallon, IL 62269
Phone: 6186243368
NPI Identifier 1538617402
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Claire M Vargo , FNP

Nurse Practitioner

Active NPI Status Accepts Medicare Assignment
3 Saint Elizabeth Blvd Ste 1800, O Fallon, IL 622691281
Phone: 6182336044
NPI Identifier 1831712835
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Keisha Marie Young , FNP-C

Nurse Practitioner

Active NPI Status Accepts Medicare Assignment
604 Pierce Blvd Ste 150, O Fallon, IL 622692588
Phone: 6182229244
NPI Identifier 1356833941
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Megan Kristine Young , APRN, FNP-BC

Nurse Practitioner

Active NPI Status
1472 N Green Mount Rd, O Fallon, IL 622693416
Phone: 6186800860
NPI Identifier 1619741790
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Caitlin Alonzo

Nurse Practitioner

Active NPI Status Accepts Medicare Assignment
1 Saint Elizabeth Blvd, O Fallon, IL 622691099
Phone: 6182342120
NPI Identifier 1083576243
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Lori Denell Hawkins , NP

Nurse Practitioner

Active NPI Status
3 Saint Elizabeth Blvd, O Fallon, IL 622691281
Phone: 6186415803
NPI Identifier 1760267736
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Sherry L Pilkington , NP

Nurse Practitioner

Active NPI Status
916 Talon Dr, Suite 102, O Fallon, IL 622691848
Phone: 6186288211
NPI Identifier 1962481770
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Frequently Asked Questions about Nurse Practitioner in O Fallon

How do I check a Nurse Practitioner 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 Illinois 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.