Quick answers
- Which hospitals does Mason Witte work at?
- Medicare's official clinician data lists Mason Witte at 5 hospitals: Corewell Health Pennock Hospital, Corewell Health Zeeland Hospital, Holland Hospital, Spectrum Health and University of Michigan Health - West. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mason Witte see patients?
- Medicare's clinician data lists 7 practice locations, including Grand Rapids, MI, Hudsonville, MI and Kentwood, MI. Call before your visit to confirm the address.
- What is Mason Witte's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Mason Witte accept Medicare assignment?
- Yes. Medicare's clinician data says Mason Witte 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 Mason Witte?
- (616) 885-5000, as listed in official Medicare / NPI Registry data.
- What is Mason Witte's NPI number?
- 1770283988. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mason Witte works
Medicare's Facility Affiliation Data lists Mason Witte at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Corewell Health Pennock HospitalHastings, MI · Critical Access Hospital · CCN 231339
- Corewell Health Zeeland HospitalZeeland, MI · Acute Care Hospital · CCN 230003
- Holland HospitalHolland, MI · Acute Care Hospital · CCN 230072
- Spectrum HealthGrand Rapids, MI · Acute Care Hospital · CCN 230038
- University of Michigan Health - WestWyoming, MI · Acute Care Hospital · CCN 230236
Practice locations
Addresses where Mason Witte is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 2900 Bradford St NE, Corewell Health Medical Group WestGrand Rapids, MI 49525 (616) 885‑5000
- 2902 Bradford St NE, Corewell Health Medical Group WestGrand Rapids, MI 49525 (616) 486‑6577
- 3152 Port Sheldon StHudsonville, MI 49426 (616) 494‑5830
- 3152 Port Sheldon St, Suite CHudsonville, MI 49426
- 330 Barclay Ave NE, 200 Corewell Health Medical Group WestGrand Rapids, MI 49503 (616) 391‑2802
Group practices
Medicare enrollment lists Mason Witte as a member of this group (CMS data updated 2026-10-02).
- Spectrum Health Primary Care Partners2,294 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Grand Rapids
Clinicians with the same Medicare primary specialty in Grand Rapids, MI — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2023 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1770283988 |
| 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