JENNIFER GAY HEMINGWAY D.O.
NPI 1275597635
Internal Medicine in Grand Rapids, MI
About Jennifer Gay Hemingway D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JENNIFER GAY HEMINGWAY D.O. (NPI 1275597635) is an individual internal medicine provider in Grand Rapids, Michigan, licensed in Michigan (5101011622) and active in the NPI registry since April 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Jennifer Gay Hemingway D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Jennifer Hemingway reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Grand Rapids, MI 49503
- Reassigned Medicare billing, Michigan enrollment
- 737 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49544 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.
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 Jennifer Hemingway's NPI number?
The NPI number for Jennifer Hemingway is 1275597635. It was assigned to this individual provider in the NPPES registry on April 13, 2006.
Where is Jennifer Hemingway located?
Jennifer Hemingway practices at 2332 Alpine Ave NW, Grand Rapids, MI 49544. The listed phone number is (616) 391-9536.
What is Jennifer Hemingway's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Jennifer Hemingway enrolled in Medicare?
Yes. Jennifer Hemingway is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Jennifer Hemingway's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jennifer Hemingway reassigns Medicare benefits to Advantage Health/Saint Mary's Medical Group (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 Jennifer Hemingway's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Jennifer Hemingway was last updated on March 2, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.