Erin Friesen
Physician Assistant · O Fallon, MO
Erin Friesen is a physician assistant with a practice address in O Fallon, Missouri, and NPI 1255028122, issued on Apr 20, 2023. Check the license (Missouri 2024037659, as entered in NPPES) with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Erin Friesen
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 2024037659 MO
Self-reported in NPPES; status is on the state search - Practice location
- 2299 Technology Dr Ste 130, O Fallon, MO 63368
- Phone
- (636) 695-0400
- Enumerated
- Apr 20, 2023
- Record last updated
- May 5, 2026
- Fax
- (636) 916-9456
- Medicare enrollment
- Enrolled (PECOS I20251014002503); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 1,790 in Missouri → Look up another NPI →
Also registered at 2299 Technology Dr Ste 130
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ralph Skitt, PA-CPhysician Assistant1639866502
Verify Erin Friesen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Missouri board licenses this profession
Search for license 2024037659Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Physician Groups LCSaint Peters, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Erin Friesen among 1,790 physician assistant records in Missouri
Erin Friesen is one of 1,790 physician assistant records with a practice address in Missouri. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 76% of them.
- NPI issued2023 · 76% of these records are older, 17% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2024 · median 2019 among the 1,250 with a school on file
- Record last updated2026 · 32% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
19 physician assistant records list a practice address in O Fallon
They are 19 of the 1,225 NPPES records with a practice address in O Fallon, and 1,790 physician assistant records in Missouri.
All 1,790 in Missouri → Every provider in O Fallon → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Jeneffer Avalos Topete, PAO Fallon, MO 633681952062689
- Acel Camfield, PAO Fallon, MO 633681982215471
- Krista Carter, PA-CO Fallon, MO 633681043622277
- Natasha Fresenburg, PA-CO Fallon, MO 633681780020495
- Olivia Hasselfeld, PAO Fallon, MO 633681194334094
- Krista Jenkins, PAO Fallon, MO 633681598036071
- Jamie Moravec, PA-CO Fallon, MO 633681659630648
- Christopher Perry, PAO Fallon, MO 633681609284645
Common questions
What is Erin Friesen's NPI number?
Erin Friesen's National Provider Identifier (NPI) is 1255028122, issued on Apr 20, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Erin Friesen located?
The NPPES record lists a practice address at 2299 Technology Dr Ste 130, O Fallon, MO, 63368. Phone: (636) 695-0400. Providers update this record themselves, so call before visiting.
How can I verify Erin Friesen's license?
NPPES lists Missouri license number 2024037659, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity 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.