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Obstetrics/Gynecology

Andrew D. Mayo, MD

Sees patients in Saint Louis, MO · St Louis, MO · Missouri

Summary

Andrew D. Mayo, MD (Obstetrics/Gynecology) is enrolled with Medicare at 4 practice locations in Saint Louis, MO and St Louis, MO. NPI 1598150393. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(636) 251‑6000 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Andrew D. Mayo, 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

4Practice locations
Obstetrics/GynecologyPrimary specialty
YesAccepts Medicare assignment
13Years since medical school (graduated 2013)
MaleGender (as listed)
Mercy Hospitals East CommunitiesGroup practice (+1 more)

Quick answers

Where does Andrew D. Mayo see patients?
Medicare's clinician data lists 4 practice locations, including Saint Louis, MO and St Louis, MO. Call before your visit to confirm the address.
What is Andrew D. Mayo's specialty?
Medicare lists Obstetrics/Gynecology as the primary specialty.
Does Andrew D. Mayo accept Medicare assignment?
Yes. Medicare's clinician data says Andrew D. Mayo 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 the phone number for Andrew D. Mayo?
(636) 251-6000, as listed in official Medicare / NPI Registry data.
What is Andrew D. Mayo's NPI number?
1598150393. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Andrew D. Mayo is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Andrew D. Mayo as a member of these groups (CMS data updated 2026-10-02).

  • Mercy Hospitals East Communities98 clinicians in the group
  • Mercy Womens Services LLC13 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Missouri →

Other OB-GYNs in Saint Louis

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

All OB-GYNs in Saint Louis →

Clinician information

CredentialMD
Graduation year2013
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1598150393
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians