MRS. KRISTIN MARIE RETTIG
NPI 1962108902
Nurse Practitioner - Family in Grand Rapids, MI
About Mrs. Kristin Marie Rettig NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. KRISTIN MARIE RETTIG (NPI 1962108902) is an individual family provider in Grand Rapids, Michigan, licensed in Michigan (4704310215) and active in the NPI registry since February 2023. She is enrolled in Medicare PECOS, is affiliated with Trinity Health Muskegon Hospital, and is a graduate of Other (2023).
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
Mrs. Kristin Marie Rettig 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 Reassignments
2Medicare enrollment records show Kristin Rettig reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Grand Rapids, MI 49503
- Reassigned Medicare billing, Michigan enrollment
- Medicare enrollment name: Rehabilitation & Physical Medicine Specialists PC
- 8 clinicians in this Medicare group
Norton Shores, MI 49444
- Reassigned Medicare billing, Michigan enrollment
- 11 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Trinity Health Muskegon Hospital
Acute Care Hospitals · Muskegon, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49503 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Kristin Rettig's NPI number?
The NPI number for Kristin Rettig is 1962108902. It was assigned to this individual provider in the NPPES registry on February 1, 2023.
Where is Kristin Rettig located?
Kristin Rettig practices at 350 Lafayette Ave SE, Suite 301, Grand Rapids, MI 49503. The listed phone number is (616) 459-0801.
What is Kristin Rettig's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Kristin Rettig enrolled in Medicare?
Yes. Kristin Rettig 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 organizations bill Medicare for Kristin Rettig's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kristin Rettig reassigns Medicare benefits to 2 organizations: Rehabilitation & Physical Medicine Specialists, P.C. (Grand Rapids, MI) and Senior Resources Of West Michigan (Norton Shores, MI). Each 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 Kristin Rettig's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Kristin Rettig accept?
Health plans from Priority Health list Kristin Rettig 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 Kristin Rettig affiliated with any hospitals?
According to CMS data, Kristin Rettig is affiliated with Trinity Health Muskegon Hospital.
When was this NPI record last updated?
The NPPES record for Kristin Rettig was last updated on February 9, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Mrs. Kristin Marie Rettig · NPI 1962108902
Family physician in Grand Rapids, Michigan. Individual provider, active in the CMS NPPES registry since February 1, 2023.
## Identity
- **NPI:** 1962108902 (Entity type: Individual)
- **Enumerated:** February 1, 2023
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 4704310215 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 350 LAFAYETTE AVE SE, SUITE 301, Grand Rapids, MI 49503
- **Phone:** (616) 459-0801
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Rehabilitation & Physical Medicine Specialists, P.C. (NPI 1639256902, Grand Rapids, MI); Senior Resources Of West Michigan (NPI 1033732987, Norton Shores, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** February 9, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1962108902) · Data from the CMS NPPES public registry.