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Physician Assistant

Katherine May, PA

Works at hospitals in Saint Charles, MO · Lake Saint Louis, MO · Missouri

Summary

Katherine May, PA (Physician Assistant) is listed by Medicare at 2 hospitals in Saint Charles, MO and Lake Saint Louis, MO. NPI 1891599635. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Katherine May, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Physician AssistantPrimary specialty
YesAccepts Medicare assignment
2Years since medical school (graduated 2024)
Saint Louis University School Of MedicineMedical school
FemaleGender (as listed)
SSM Medical Group IncGroup practice

Quick answers

Which hospitals does Katherine May work at?
Medicare's official clinician data lists Katherine May at 2 hospitals: SSM St Joseph Health Center and SSM St Joseph Hospital West. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Katherine May see patients?
Medicare's clinician data lists 1 practice location in Saint Louis, MO. Call before your visit to confirm the address.
What is Katherine May's specialty?
Medicare lists Physician Assistant as the primary specialty.
Does Katherine May accept Medicare assignment?
Yes. Medicare's clinician data says Katherine May accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is Katherine May's NPI number?
1891599635. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Katherine May works

Medicare's Facility Affiliation Data lists Katherine May at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Katherine May is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Katherine May as a member of this group (CMS data updated 2026-10-02).

  • SSM Medical Group Inc568 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, Missouri →

Other physician assistants in Saint Louis

Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.

All physician assistants in Saint Louis →

Clinician information

CredentialPA
Medical schoolSaint Louis University School Of Medicine
Graduation year2024
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1891599635
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians