Quick answers
- Which hospitals does William J. Gray work at?
- Medicare's official clinician data lists William J. Gray at 2 hospitals: ProMedica Charles and Virginia Hickman Hospital and ProMedica Toledo Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William J. Gray see patients?
- Medicare's clinician data lists 2 practice locations, including Blissfield, MI and Tecumseh, MI. Call before your visit to confirm the address.
- What is William J. Gray's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does William J. Gray accept Medicare assignment?
- Yes. Medicare's clinician data says William J. Gray 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.
- Does William J. Gray offer telehealth?
- Medicare's clinician data says William J. Gray offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for William J. Gray?
- (517) 486-2411, as listed in official Medicare / NPI Registry data.
- What is William J. Gray's NPI number?
- 1588666317. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William J. Gray works
Medicare's Facility Affiliation Data lists William J. Gray at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- ProMedica Charles and Virginia Hickman HospitalAdrian, MI · Acute Care Hospital · CCN 230005
- ProMedica Toledo HospitalToledo, OH · Acute Care Hospital · CCN 360068
Practice locations
Addresses where William J. Gray is enrolled with Medicare (CMS data updated 2026-10-02).
- 157 W Brooke LnBlissfield, MI 49228 (517) 486‑2411
- 200 E Russell Rd, Unit CTecumseh, MI 49286 (517) 263‑9491
Group practices
Medicare enrollment lists William J. Gray as a member of this group (CMS data updated 2026-10-02).
- ProMedica Central Corporation of Michigan111 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Michigan
Clinicians with the same Medicare primary specialty in Michigan — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Michigan State University College Of Human Medicine |
| Graduation year | 1995 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1588666317 |
| 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