MARY WOLLER FNP
NPI 1932704004
Nurse Practitioner - Family in Cass City, MI
About Mary Woller Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY WOLLER FNP (NPI 1932704004) is an individual family provider in Cass City, Michigan, licensed in Michigan (4704196723) and active in the NPI registry since December 2020. She is enrolled in Medicare PECOS, is affiliated with Trinity Health Muskegon Hospital, and is a graduate of Other (2020).
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
Mary Woller Fnp 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 Mary Woller reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Cass City, MI 48726
- Reassigned Medicare billing, Michigan enrollment
- 123 clinicians in this Medicare group
Portage, MI 49024
- Reassigned Medicare billing, Michigan enrollment
- 17 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 48726 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
CASS CITY, MI 48726
CASS CITY, MI 48726
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 Mary Woller's NPI number?
The NPI number for Mary Woller is 1932704004. It was assigned to this individual provider in the NPPES registry on December 4, 2020.
Where is Mary Woller located?
Mary Woller practices at 4675 Hill St, Cass City, MI 48726. The listed phone number is (989) 872-2121.
What is Mary Woller's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Mary Woller enrolled in Medicare?
Yes. Mary Woller 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 Mary Woller's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Woller reassigns Medicare benefits to 2 organizations: Hills & Dales General Hospital, Inc. (Cass City, MI) and Center For Vein Restoration Mi PLLC (Portage, 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 Mary Woller's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Woller accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and Priority Health list Mary Woller 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 Mary Woller affiliated with any hospitals?
According to CMS data, Mary Woller is affiliated with Trinity Health Muskegon Hospital.
When was this NPI record last updated?
The NPPES record for Mary Woller was last updated on December 4, 2020. 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.
# Mary Woller, FNP · NPI 1932704004
Family physician in Cass City, Michigan. Individual provider, active in the CMS NPPES registry since December 4, 2020.
## Identity
- **NPI:** 1932704004 (Entity type: Individual)
- **Enumerated:** December 4, 2020
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 4704196723 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 4675 HILL ST, Cass City, MI 48726-1099
- **Phone:** (989) 872-2121
## 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): Hills & Dales General Hospital, Inc. (NPI 1154367001, Cass City, MI); Center For Vein Restoration Mi PLLC (NPI 1720388267, Portage, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** December 4, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1932704004) · Data from the CMS NPPES public registry.