KARA MARIE WITMER NP
NPI 1689208597
Nurse Practitioner - Family in Fremont, MI
About Kara Marie Witmer Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KARA MARIE WITMER NP (NPI 1689208597) is an individual family provider in Fremont, Michigan, licensed in Michigan (4704310743) and active in the NPI registry since February 2020. She is enrolled in Medicare PECOS.
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 (PECOS)
Kara Marie Witmer Np is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
6Medicare enrollment records show Kara Witmer reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fremont, MI 49412
- Reassigned Medicare billing, Michigan enrollment
- 180 clinicians in this Medicare group
Big Rapids, MI 49307
- Reassigned Medicare billing, Michigan enrollment
- 151 clinicians in this Medicare group
Muskegon, MI 49445
- Reassigned Medicare billing, Michigan enrollment
- 2,446 clinicians in this Medicare group
Lakeview, MI 48850
- Reassigned Medicare billing, Michigan enrollment
- 242 clinicians in this Medicare group
Ludington, MI 49431
- Reassigned Medicare billing, Michigan enrollment
- 168 clinicians in this Medicare group
Hastings, MI 49058
- Reassigned Medicare billing, Michigan enrollment
- 184 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 49412 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.
FREMONT, MI 49412
FREMONT, MI 49412
FREMONT, MI 49412
FREMONT, MI 49412
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 Kara Witmer's NPI number?
The NPI number for Kara Witmer is 1689208597. It was assigned to this individual provider in the NPPES registry on February 29, 2020.
Where is Kara Witmer located?
Kara Witmer practices at 212 S Sullivan Ave, Fremont, MI 49412. The listed phone number is (231) 924-6600.
What is Kara Witmer's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Kara Witmer enrolled in Medicare?
Yes. Kara Witmer is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Kara Witmer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kara Witmer reassigns Medicare benefits to 6 organizations: Newaygo County General Hospital Association (Fremont, MI), Mecosta County Medical Center (Big Rapids, MI), Spectrum Health Primary Care Partners (Muskegon, MI), Spectrum Health United (Lakeview, MI), Memorial Medical Center Of West Michigan (Ludington, MI) and 1 more organization, listed in the Medicare section above. 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 Kara Witmer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Kara Witmer accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and Priority Health list Kara Witmer 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.
When was this NPI record last updated?
The NPPES record for Kara Witmer was last updated on May 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months 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.
# Kara Marie Witmer, NP · NPI 1689208597
Family physician in Fremont, Michigan. Individual provider, active in the CMS NPPES registry since February 29, 2020.
## Identity
- **NPI:** 1689208597 (Entity type: Individual)
- **Enumerated:** February 29, 2020
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 4704310743 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 212 S SULLIVAN AVE, Fremont, MI 49412-1548
- **Phone:** (231) 924-6600
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for durable medical equipment, power mobility devices
- **Bills Medicare through:** 6 organizations under Medicare reassignment (form CMS-855R): Newaygo County General Hospital Association (NPI 1609009554, Fremont, MI); Mecosta County Medical Center (NPI 1508146457, Big Rapids, MI); Spectrum Health Primary Care Partners (NPI 1386194538, Muskegon, MI); Spectrum Health United (NPI 1164766465, Lakeview, MI); Memorial Medical Center Of West Michigan (NPI 1356510259, Ludington, MI); and 1 more · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 23, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1689208597) · Data from the CMS NPPES public registry.