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Gastroenterology

Donald J. Martin, MD

Works at hospitals in Shawnee Mission, KS · Overland Park, KS · Kansas City, MO · Kansas, Missouri

Summary

Dr. Donald J. Martin, MD is a gastroenterologist at 1000 Carondelet Dr, Kansas City, MO 64114. Phone: (913) 495-9600. Accepts Medicare assignment. In 2024, Donald J. Martin had 514 Original Medicare patients and 6,531 services. NPI 1205923109. 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 Donald J. 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 Donald J. Martin accept Medicare assignment?
Yes. Medicare's clinician data says Donald J. 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 Donald J. Martin see?
In 2024, CMS data shows 514 Original Medicare patients and 6,531 services for Donald J. Martin. This counts Original Medicare only and measures volume, not quality.
What is Donald J. Martin's NPI number?
1205923109. 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 Donald J. 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 patients514
Services billed to Medicare6,531
Different services or procedures33
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Colorectal cancer screening; colonoscopy on individual at high risk (G0105)134 services
  2. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)117 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)85 services
  4. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)77 services
  5. Biopsy of large bowel using a flexible endoscope (45380)66 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 cholesterol75%
  • High blood pressure70%
  • Arthritis41%
  • Ischemic heart disease27%
  • Anxiety24%
  • Diabetes21%

Hospitals where Donald J. Martin works

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

Group practices

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

  • Gastrointestinal Associates LLC13 clinicians in the group

Specialties

Find other Gastroenterology doctors in Missouri →

Other gastroenterologists in Kansas City

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

All gastroenterologists in Kansas City →

Other clinicians in Gastrointestinal Associates LLC

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

Clinician information

CredentialMD
Medical schoolCreighton University School Of Medicine
Graduation year2006 (20 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1205923109
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