Quick answers
- Which hospitals does Robert M. Williams work at?
- Medicare's official clinician data lists Robert M. Williams at 5 hospitals: Chelsea Hospital, Henry Ford Allegiance Health, Trinity Health Ann Arbor Hospital, Trinity Health Livingston Hospital and University of Michigan Health System. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Robert M. Williams see patients?
- Medicare's clinician data lists 1 practice location in Chelsea, MI. Call before your visit to confirm the address.
- What is Robert M. Williams's specialty?
- Medicare lists Orthopedic Surgery as the primary specialty.
- Does Robert M. Williams accept Medicare assignment?
- Yes. Medicare's clinician data says Robert M. 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 Robert M. Williams?
- (734) 593-5700, as listed in official Medicare / NPI Registry data.
- What is Robert M. Williams's NPI number?
- 1407878093. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Robert M. Williams works
Medicare's Facility Affiliation Data lists Robert M. Williams at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Chelsea HospitalChelsea, MI · Acute Care Hospital · CCN 230259
- Henry Ford Allegiance HealthJackson, MI · Acute Care Hospital · CCN 230092
- Trinity Health Ann Arbor HospitalAnn Arbor, MI · Acute Care Hospital · CCN 230156
- Trinity Health Livingston HospitalBrighton, MI · Acute Care Hospital · CCN 230069
- University of Michigan Health SystemAnn Arbor, MI · Acute Care Hospital · CCN 230046
Practice locations
Addresses where Robert M. Williams is enrolled with Medicare (CMS data updated 2026-10-02).
- 14650 E Old US Hwy 12, Suite 105Chelsea, MI 48118 (734) 593‑5700
Group practices
Medicare enrollment lists Robert M. Williams as a member of this group (CMS data updated 2026-10-02).
- Iha Health Services Corporation1,168 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Chelsea
Clinicians with the same Medicare primary specialty in Chelsea, MI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Michigan Medical School |
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1407878093 |
| 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