Quick answers
- Which hospitals does Michael R. Puff work at?
- Medicare's official clinician data lists Michael R. Puff at 2 hospitals: Spectrum Health and Spectrum Health United Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael R. Puff see patients?
- Medicare's clinician data lists 4 practice locations, including Grand Rapids, MI, Kentwood, MI and Greenville, MI. Call before your visit to confirm the address.
- What is Michael R. Puff's specialty?
- Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
- Does Michael R. Puff accept Medicare assignment?
- Yes. Medicare's clinician data says Michael R. Puff 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 Michael R. Puff?
- (616) 391-5600, as listed in official Medicare / NPI Registry data.
- What is Michael R. Puff's NPI number?
- 1265471957. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Michael R. Puff works
Medicare's Facility Affiliation Data lists Michael R. Puff at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Spectrum HealthGrand Rapids, MI · Acute Care Hospital · CCN 230038
- Spectrum Health United HospitalGreenville, MI · Acute Care Hospital · CCN 230035
Practice locations
Addresses where Michael R. Puff is enrolled with Medicare (CMS data updated 2026-10-02).
- 4100 Lake Dr SEGrand Rapids, MI 49546
- 4444 Kalamazoo Ave SE, 200 Corewell Health Medical Group WestKentwood, MI 49508 (616) 391‑5600
- 615 S Bower StGreenville, MI 48838 (616) 225‑6522
- 615 S Bower St, Corewell Health Medical Group WestGreenville, MI 48838
Group practices
Medicare enrollment lists Michael R. Puff as a member of this group (CMS data updated 2026-10-02).
- Spectrum Health Primary Care Partners2,294 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in Grand Rapids
Clinicians with the same Medicare primary specialty in Grand Rapids, MI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Wayne State University School Of Medicine |
| Graduation year | 1984 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1265471957 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians