NPPES file of Aug 9, 2026

Katherine Fox

Physician Assistant · Saint Louis, MO

Katherine Fox is a physician assistant with a practice address in Saint Louis, Missouri, and NPI 1821759473, issued on Jan 5, 2022. Check the license 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
1821759473
Name
Katherine Fox
Primary taxonomy
Physician Assistant 363A00000X
Practice location
3437 Caroline St, Saint Louis, MO 63104
Phone
(314) 977-8641
Enumerated
Jan 5, 2022
Record last updated
May 9, 2024
Medicare enrollment
Enrolled (PECOS I20230403000156); 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 3437 Caroline St

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

  1. Karen Barney, PH.D., OTR/L, FAOTAOccupational Therapist1801151550
  2. Jason Bennett, MSPT SCS ATCPhysical Therapist1609987650
  3. Emily BoeckenstedtPhysician Assistant1952999526
  4. Anthony Breitbach, ATCAthletic Trainer1215147954
  5. Jazmon CarrollOrthopedic Physical Therapist1780140244
  6. Melissa DoanPhysician Assistant1114516671

Verify Katherine Fox in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Missouri board licenses this professionCheck 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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Most of these Medicare Part D claims are vaccines, 72% of the cost of the top drugs

617 Medicare Part D claims for 292 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Katherine Fox617
  2. Specialty average830

Most prescribed

Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.

  1. Ipratropium Bromide26 claims
  2. Atorvastatin Calcium24 claims
  3. Pantoprazole Sodium21 claims
  4. Amlodipine Besylate18 claims
  5. Prednisone17 claims
  6. Azithromycin16 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. Ssm Medical Group IncSaint Louis, MO

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

Katherine Fox among 1,790 physician assistant records in Missouri

Katherine Fox 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 2022, is newer than 68% of them.

  • NPI issued2022 · 68% of these records are older, 24% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2022 · 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. Susan Ameiss, PA-CSaint Louis, MO 631041245565415
  2. Jordan Biel, PA-CSaint Louis, MO 631041174037360
  3. Ashtynn Braden, PA-CSaint Louis, MO 631041033691191
  4. Kimberly Brown, PA-CSaint Louis, MO 631041205943859
  5. Genevieve Delrosario, PA-CSaint Louis, MO 631041205945144
  6. Kaycee Erzfeld, PA-CSaint Louis, MO 631041881103851
  7. Taylor Eversole, PA-CSaint Louis, MO 631041336510783
  8. Alyssa HendrixSaint Louis, MO 631041487283891

Common questions

What is Katherine Fox's NPI number?

Katherine Fox's National Provider Identifier (NPI) is 1821759473, issued on Jan 5, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Fox located?

The NPPES record lists a practice address at 3437 Caroline St, Saint Louis, MO, 63104. Phone: (314) 977-8641. Providers update this record themselves, so call before visiting.

How can I verify Katherine Fox's license?

Search the Missouri board that licenses this profession; the NPPES record confirms identity only.

How much does Katherine Fox prescribe under Medicare Part D?

In 2024, Katherine Fox had 617 Medicare Part D claims for 292 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.