Quick answers
- Which hospitals does William C. Decker work at?
- Medicare's official clinician data lists William C. Decker 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 C. Decker see patients?
- Medicare's clinician data lists 4 practice locations, including Tecumseh, MI and Adrian, MI. Call before your visit to confirm the address.
- What is William C. Decker's specialty?
- Medicare lists Pulmonary Disease as the primary specialty, and also Critical Care (Intensivists).
- Does William C. Decker accept Medicare assignment?
- Yes. Medicare's clinician data says William C. Decker 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 William C. Decker?
- (517) 263-9491, as listed in official Medicare / NPI Registry data.
- What is William C. Decker's NPI number?
- 1942205208. 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 C. Decker works
Medicare's Facility Affiliation Data lists William C. Decker 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 C. Decker is enrolled with Medicare (CMS data updated 2026-10-02).
- 200 E Russell Rd, Unit CTecumseh, MI 49286 (517) 263‑9491
- 5640 N Adrian HwyAdrian, MI 49221 (419) 291‑4491
- 5640 N Adrian Hwy, CAdrian, MI 49221 (517) 577‑0283
- 777 Kimole LnAdrian, MI 49221
Group practices
Medicare enrollment lists William C. Decker as a member of this group (CMS data updated 2026-10-02).
- ProMedica Central Corporation of Michigan111 clinicians in the group
Specialties
Other pulmonologists in Michigan
Clinicians with the same Medicare primary specialty in Michigan — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Des Moines University Of Osteopathic Medicine And Health Sciences |
| Graduation year | 1985 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1942205208 |
| 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