Quick answers
- Does Mary L. Watts accept Medicare assignment?
- Yes. Medicare's clinician data says Mary L. Watts accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Mary L. Watts's NPI number?
- 1154399186. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Mary L. Watts is enrolled with Medicare (CMS data updated October 2, 2026).
- 1108 W State St, 3 Corewell Health Pennock HospitalHastings, MI 49058 (269) 945‑0922
Group practices
Medicare enrollment lists Mary L. Watts as a member of this group (CMS data updated October 2, 2026).
- Pennock Hospital75 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Hastings
Clinicians with the same Medicare primary specialty in Hastings, MI — not a recommendation.
Other clinicians in Pennock Hospital
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Michigan State University College Of Human Medicine |
| Graduation year | 1989 (37 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154399186 |
| 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
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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