NPPES file of Aug 9, 2026

Gwynne Heidi Kohn, PA

Physician Assistant · Saint Louis, MO

Gwynne Heidi Kohn, PA is a physician assistant with a practice address in Saint Louis, Missouri, and NPI 1669707477, issued on Oct 12, 2009. Check the license (Missouri 2023050454, as entered in NPPES) with the Missouri 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
1669707477
Name
Gwynne Heidi Kohn
Credential
PA
Primary taxonomy
Physician Assistant 363A00000X
License number
2023050454 MO
Self-reported in NPPES; status is on the state search
Practice location
1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110
Phone
(314) 362-9123
Enumerated
Oct 12, 2009
Record last updated
Jul 2, 2024
Fax
(314) 362-0478
Medicare enrollment
Enrolled (PECOS I20240531001168); accepts Medicare assignment
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 1 Barnes Jewish Hospital Plz

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

  1. Fizza Abbas, MDInternal Medicine Physician1588079230
  2. Catey Abbott, DOInternal Medicine Physician1699355347
  3. Ramzi Abboud, MDMedical Oncology Physician1649684200
  4. Amy Abdalla, MDRadiation Oncology Physician1932959954
  5. Heba Abdelal, MDAnatomic Pathology & Clinical Pathology Physician1033633383
  6. Ali Abdelhay, MDHospitalist Physician1619540606

Verify Gwynne Heidi Kohn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Missouri board licenses this profession
    Search for license 2023050454
    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 Missouri license search

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86% fewer Medicare Part D claims than the average physician assistant in 2024

120 Medicare Part D claims for 77 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Gwynne Kohn120
  2. Specialty average830

Most prescribed

  1. Ibuprofen22 claims
  2. Cephalexin16 claims
  3. Baclofen15 claims
  4. Methylprednisolone12 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 one group practice

  1. Total Access Urgent Care PCSaint Louis, MO

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

Gwynne Heidi Kohn among 1,790 physician assistant records in Missouri

Gwynne Heidi Kohn, PA 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 2009, is newer than 21% of them.

  • NPI issued2009 · 21% of these records are older, 77% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2007 · median 2019 among the 1,250 with a school on file
  • Record last updated2024 · 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).

498 physician assistant records list a practice address in Saint Louis

They are 498 of the 27,605 NPPES records with a practice address in Saint Louis, and 1,790 physician assistant records in Missouri.

The 8 physician assistant records with the nearest ZIP codes

  1. David Autry, PASaint Louis, MO 631101578587796
  2. Matthew Callen, PASaint Louis, MO 631101497762793
  3. Michael Cracchiolo, PASaint Louis, MO 631101891713350
  4. Jennifer Ehret, PASaint Louis, MO 631101679591101
  5. Mary Fujarski, PASaint Louis, MO 631101225054547
  6. Angela Gieseler, PASaint Louis, MO 631101114995818
  7. Philana Liang, PASaint Louis, MO 631101831130533
  8. Rebecca Loveless, PASaint Louis, MO 631101649218470

Common questions

What is Gwynne Heidi Kohn, PA's NPI number?

Gwynne Heidi Kohn, PA's National Provider Identifier (NPI) is 1669707477, issued on Oct 12, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Gwynne Heidi Kohn, PA located?

The NPPES record lists a practice address at 1 Barnes Jewish Hospital Plz, Saint Louis, MO, 63110. Phone: (314) 362-9123. Providers update this record themselves, so call before visiting.

How can I verify Gwynne Heidi Kohn, PA's license?

NPPES lists Missouri license number 2023050454, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.

How much does Gwynne Heidi Kohn, PA prescribe under Medicare Part D?

In 2024, Gwynne Heidi Kohn, PA had 120 Medicare Part D claims for 77 beneficiaries; the average among physician assistant prescribers was 830. 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.