NPPES file of Aug 9, 2026

Megan Samantha Knetzer, FNP

Adult Health Nurse Practitioner · O Fallon, IL

Megan Samantha Knetzer, FNP is an adult health nurse practitioner with a practice address in O Fallon, Illinois, and NPI 1790301232, issued on Jun 20, 2020. Check the license (Illinois 209030918, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1790301232
Name
Megan Samantha Knetzer
Credential
FNP
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License numbers
209030918 IL
2021018970 MO
Self-reported in NPPES; status is on the state search
Practice location
3 Saint Elizabeth Blvd Ste 3900, O Fallon, IL 62269
Phone
(314) 806-1770
Enumerated
Jun 20, 2020
Record last updated
Mar 13, 2025
Fax
(314) 558-9017
Medicare enrollment
Enrolled (PECOS I20211230000161); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3 Saint Elizabeth Blvd Ste 3900

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sarah Fouke, MDNeurological Surgery Physician1154433712
  2. Stephen Johans, M.D.Neurological Surgery Physician1013273580

Verify Megan Samantha Knetzer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 209030918
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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87% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024

171 Medicare Part D claims for 124 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 92 claims were for opioids.

  1. Megan Knetzer171
  2. Specialty average1,280

Most prescribed

  1. Hydrocodone-Acetaminophen66 claims
  2. Meloxicam35 claims
  3. Tramadol Hcl26 claims
  4. Methylprednisolone21 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through 3 group practices

  1. Anderson Medical Group LLCMaryville, IL
  2. Signature Medical Group IncSaint Louis, MO
  3. Urology OF St Louis IncSaint Louis, MO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Megan Samantha Knetzer among 743 adult health nurse practitioner records in Illinois

Megan Samantha Knetzer, FNP is one of 743 adult health nurse practitioner records with a practice address in Illinois. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 86% of them.

  • NPI issued2020 · 86% of these records are older, 12% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2021 · median 2013 among the 372 with a school on file
  • Record last updated2025 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

9 adult health nurse practitioner records list a practice address in O Fallon

They are 9 of the 1,077 NPPES records with a practice address in O Fallon, and 743 adult health nurse practitioner records in Illinois.

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. Katherine Corbin, NP-CO Fallon, IL 622691710433768
  2. Angela Croessman-Marshall, AGNP-CO Fallon, IL 622691023994274
  3. Lori Beth Helmers, APRNO Fallon, IL 622691063457794
  4. Crystal Jesenick, A.N.P.-CO Fallon, IL 622691396831616
  5. Dana Loepker, APNO Fallon, IL 622691225295967
  6. Kayla McCarthy, ANPShiloh, IL 622691861902025
  7. Patricia RellekeO Fallon, IL 622691770949125
  8. Susan Stewart, A.N.P.O Fallon, IL 622691588974026

Common questions

What is Megan Samantha Knetzer, FNP's NPI number?

Megan Samantha Knetzer, FNP's National Provider Identifier (NPI) is 1790301232, issued on Jun 20, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Megan Samantha Knetzer, FNP located?

The NPPES record lists a practice address at 3 Saint Elizabeth Blvd Ste 3900, O Fallon, IL, 62269. Phone: (314) 806-1770. Providers update this record themselves, so call before visiting.

How can I verify Megan Samantha Knetzer, FNP's license?

NPPES lists Illinois license number 209030918, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Megan Samantha Knetzer, FNP prescribe under Medicare Part D?

In 2024, Megan Samantha Knetzer, FNP had 171 Medicare Part D claims for 124 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.