John Walsh, M.D.
NPI 1982684643 · Gastroenterology Physician · Ypsilanti, MI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Walsh, M.D. is a Gastroenterology Physician provider in Ypsilanti, MI (NPI 1982684643).
Provider details
- NPI number
- 1982684643
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 056299 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
545 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 138 | $249 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 73 | $81 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 67 | $63 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 57 | $98 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 49 | $127 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 176 | 174 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 86 | 85 |
| Nortriptyline Hcl | 52 | 18 |
| Omeprazole | 50 | 24 |
| Colestipol Hcl | 45 | 21 |
| Famotidine | 41 | 17 |
| Pantoprazole Sodium | 41 | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-19
- Last updated
- 2025-09-09
- Certified
- 2025-09-09
Frequently asked questions
- What is John Walsh's NPI number?
- John Walsh's National Provider Identifier (NPI) is 1982684643, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Walsh's specialty?
- John Walsh is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is John Walsh located?
- John Walsh's practice location on file with NPPES is 5300 Elliott Dr, Ypsilanti, MI 48197-8632.
- What is John Walsh's phone number?
- The practice phone number listed in the NPPES registry for John Walsh is (734) 434-6262.
- Does John Walsh accept Medicare?
- John Walsh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Walsh's NPI active?
- Yes — John Walsh's NPI (1982684643) is active in the NPPES registry as of the last update on 2025-09-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.