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Obstetrics/Gynecology

Megan McMahon, MD

Works at hospitals in Columbia, MO · Missouri

Summary

Dr. Megan McMahon, MD is an OB-GYN at 404 N Keene St, Columbia, MO 65201. Phone: (573) 875-9000. Accepts Medicare assignment. In 2024, Megan McMahon had 13 Original Medicare patients and 16 services. NPI 1811428766. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 404 N Keene St, Columbia, MO 65201 · Directions
  • Phone: (573) 875‑9000
  • Medicare: Accepts Medicare assignment
  • Hospital: University of Missouri Health Care
  • Group practice: The Curators of the University of Missouri
  • Medical school: Saint Louis University School Of Medicine · graduated 2017 (9 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Megan McMahon, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Megan McMahon accept Medicare assignment?
Yes. Medicare's clinician data says Megan McMahon accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Megan McMahon see?
In 2024, CMS data shows 13 Original Medicare patients and 16 services for Megan McMahon. This counts Original Medicare only and measures volume, not quality.
What is Megan McMahon's NPI number?
1811428766. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Megan McMahon, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients13
Services billed to Medicare16
Different services or procedures11
Participating Medicare providerYes
Average age of these patients51

Hospitals where Megan McMahon works

Medicare's Facility Affiliation Data lists Megan McMahon at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Megan McMahon is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Megan McMahon as a member of this group (CMS data updated October 2, 2026).

  • The Curators of the University of Missouri1,131 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Missouri →

Other OB-GYNs in Columbia

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

All OB-GYNs in Columbia →

Other clinicians in The Curators of the University of Missouri

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolSaint Louis University School Of Medicine
Graduation year2017 (9 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1811428766
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians