Quick answers
- Which hospitals does Katherine E. Grierson work at?
- Medicare's official clinician data lists Katherine E. Grierson at 1 hospital: Corewell Health Ludington Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Katherine E. Grierson see patients?
- Medicare's clinician data lists 1 practice location in Ludington, MI. Call before your visit to confirm the address.
- What is Katherine E. Grierson's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Katherine E. Grierson accept Medicare assignment?
- Yes. Medicare's clinician data says Katherine E. Grierson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Katherine E. Grierson?
- (231) 845-7380, as listed in official Medicare / NPI Registry data.
- What is Katherine E. Grierson's NPI number?
- 1295702777. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Katherine E. Grierson works
Medicare's Facility Affiliation Data lists Katherine E. Grierson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Corewell Health Ludington HospitalLudington, MI · Acute Care Hospital · CCN 230110
Practice locations
Addresses where Katherine E. Grierson is enrolled with Medicare (CMS data updated 2026-10-02).
- 922 Lawndale StLudington, MI 49431 (231) 845‑7380
Group practices
Medicare enrollment lists Katherine E. Grierson as a member of this group (CMS data updated 2026-10-02).
- Memorial Medical Center of West Michigan62 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Ludington
Clinicians with the same Medicare primary specialty in Ludington, MI — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2001 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1295702777 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians