JOANNE MARIE GRZESZAK DO
NPI 1124083670
Family Medicine in Grand Rapids, MI
About Joanne Marie Grzeszak Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOANNE MARIE GRZESZAK DO (NPI 1124083670) is an individual family medicine provider in Grand Rapids, Michigan, licensed in Michigan (5101007147) 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)
Joanne Marie Grzeszak Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Joanne Grzeszak reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Wyoming, MI 49548
- Reassigned Medicare billing, Michigan enrollment
- 685 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 49507 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
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 Joanne Grzeszak's NPI number?
The NPI number for Joanne Grzeszak is 1124083670. It was assigned to this individual provider in the NPPES registry on April 19, 2006.
Where is Joanne Grzeszak located?
Joanne Grzeszak practices at 806 Alger St SE, Grand Rapids, MI 49507. The listed phone number is (616) 252-7200.
What is Joanne Grzeszak's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Joanne Grzeszak enrolled in Medicare?
Yes. Joanne Grzeszak is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Joanne Grzeszak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joanne Grzeszak reassigns Medicare benefits to Metropolitan Hospital (Wyoming, 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 Joanne Grzeszak'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 Joanne Grzeszak was last updated on October 1, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.