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Dermatology

Ann G. Martin, MD

Works at hospitals in Creve Coeur, MO · Saint Louis, MO · Missouri

Summary

Dr. Ann G. Martin, MD is a dermatologist at 1 Barnes Jew Hosp Plz, Saint Louis, MO 63110. Phone: (314) 747-3000. Accepts Medicare assignment. In 2024, Ann G. Martin had 973 Original Medicare patients and 16,774 services. NPI 1225056732. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Ann G. Martin, 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 Ann G. Martin accept Medicare assignment?
Yes. Medicare's clinician data says Ann G. Martin 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 Ann G. Martin see?
In 2024, CMS data shows 973 Original Medicare patients and 16,774 services for Ann G. Martin. This counts Original Medicare only and measures volume, not quality.
What is Ann G. Martin's NPI number?
1225056732. 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 Ann G. Martin, 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 patients973
Services billed to Medicare16,774
Different services or procedures48
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Aminolevulinic acid hcl for topical administration, 10% gel, 10 mg (J7345)13,200 services
  2. Destruction of precancer skin growth, 2-14 growths (17003)879 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)778 services
  4. Destruction of precancer skin growth, 1 growth (17000)469 services
  5. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)381 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol73%
  • High blood pressure63%
  • Arthritis48%
  • Osteoporosis23%
  • Ischemic heart disease20%
  • Anxiety19%

Hospitals where Ann G. Martin works

Medicare's Facility Affiliation Data lists Ann G. Martin 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 Ann G. Martin is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Ann G. Martin as a member of this group (CMS data updated October 2, 2026).

  • Washington University3,029 clinicians in the group

Specialties

Find other Dermatology doctors in Missouri →

Other dermatologists in Saint Louis

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

All dermatologists in Saint Louis →

Other clinicians in Washington University

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

Clinician information

CredentialMD
Medical schoolClvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University
Graduation year1981 (45 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1225056732
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