MICHAEL RAPHAEL PUFF MD
NPI 1265471957
Internal Medicine - Gastroenterology in Grand Rapids, MI
About Michael Raphael Puff Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL RAPHAEL PUFF MD (NPI 1265471957) is an individual gastroenterology provider in Grand Rapids, Michigan, licensed in Michigan (4301049022) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Spectrum Health United Hospital, and is a graduate of Wayne State University School Of Medicine (1984).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Michael Raphael Puff Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Michael Puff reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Grand Rapids, MI 49546
- Reassigned Medicare billing, Michigan enrollment
- 2,446 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Spectrum Health United Hospital
Acute Care Hospitals · Greenville, MISpectrum Health
Acute Care Hospitals · Grand Rapids, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49546 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GRAND RAPIDS, MI 49546
GRAND RAPIDS, MI 49546
GRAND RAPIDS, MI 49546
GRAND RAPIDS, MI 49546
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Michael Puff's NPI number?
The NPI number for Michael Puff is 1265471957. It was assigned to this individual provider in the NPPES registry on June 6, 2006.
Where is Michael Puff located?
Michael Puff practices at 4100 Lake Dr SE S-205, Grand Rapids, MI 49546. The listed phone number is (616) 774-2414.
What is Michael Puff's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Michael Puff enrolled in Medicare?
Yes. Michael Puff is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Michael Puff's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Puff reassigns Medicare benefits to Spectrum Health Primary Care Partners (Grand Rapids, MI). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Michael Puff's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Puff accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and Priority Health list Michael Puff as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Michael Puff affiliated with any hospitals?
According to CMS data, Michael Puff is affiliated with Spectrum Health United Hospital and Spectrum Health.
When was this NPI record last updated?
The NPPES record for Michael Puff was last updated on February 19, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Michael Raphael Puff, MD · NPI 1265471957
Gastroenterology physician in Grand Rapids, Michigan. Individual provider, active in the CMS NPPES registry since June 6, 2006.
## Identity
- **NPI:** 1265471957 (Entity type: Individual)
- **Enumerated:** June 6, 2006
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 4301049022 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 4100 LAKE DR SE, S-205, Grand Rapids, MI 49546-8292
- **Phone:** (616) 774-2414
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Spectrum Health Primary Care Partners (NPI 1528374683, Grand Rapids, MI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Wayne State University School Of Medicine, class of 1984
## Record status
- **NPPES last updated:** February 19, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1265471957) · Data from the CMS NPPES public registry.