Quick answers
- Which hospitals does Mark R. Williams work at?
- Medicare's official clinician data lists Mark R. Williams at 1 hospital: McLaren Flint. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark R. Williams see patients?
- Medicare's clinician data lists 2 practice locations, including Lapeer, MI and Davison, MI. Call before your visit to confirm the address.
- What is Mark R. Williams's specialty?
- Medicare lists Podiatry as the primary specialty.
- Does Mark R. Williams accept Medicare assignment?
- Yes. Medicare's clinician data says Mark R. Williams 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 Mark R. Williams?
- (810) 664-1250, as listed in official Medicare / NPI Registry data.
- What is Mark R. Williams's NPI number?
- 1669575478. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark R. Williams works
Medicare's Facility Affiliation Data lists Mark R. Williams at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- McLaren FlintFlint, MI · Acute Care Hospital · CCN 230141
Practice locations
Addresses where Mark R. Williams is enrolled with Medicare (CMS data updated 2026-10-02).
- 1390 N Main StLapeer, MI 48446 (810) 664‑1250
- 605 S State RdDavison, MI 48423 (810) 653‑9060
Group practices
Medicare enrollment lists Mark R. Williams as a member of this group (CMS data updated 2026-10-02).
- Professional Foot and Ankle Centers, PC3 clinicians in the group
Specialties
- Podiatryprimary
Other podiatrists in Lapeer
Clinicians with the same Medicare primary specialty in Lapeer, MI — not a recommendation.
Clinician information
| Credential | DPM |
|---|---|
| Medical school | Kent State University College Of Podiatric Medicine |
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1669575478 |
| 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