Quick answers
- Where does John M. Ketner see patients?
- Medicare's clinician data lists 1 practice location in Waterford, MI. Call before your visit to confirm the address.
- What is John M. Ketner's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does John M. Ketner accept Medicare assignment?
- Yes. Medicare's clinician data says John M. Ketner 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 John M. Ketner?
- (248) 674-9664, as listed in official Medicare / NPI Registry data.
- What is John M. Ketner's NPI number?
- 1801834130. 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 John M. Ketner is enrolled with Medicare (CMS data updated 2026-10-02).
- 5624 Highland RdWaterford, MI 48327 (248) 674‑9664
Specialties
- General Surgeryprimary
Other general surgeons in Michigan
Clinicians with the same Medicare primary specialty in Michigan — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Michigan State University College Of Osteopathic Medicine |
| Graduation year | 1978 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1801834130 |
| 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 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