Quick answers
- Which hospitals does John J. Ference work at?
- Medicare's official clinician data lists John J. Ference at 5 hospitals: Ascension River District Hospital, Lake Huron Medical Center, McKenzie Health System, McLaren Bay Region and McLaren Port Huron. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John J. Ference see patients?
- Medicare's clinician data lists 7 practice locations, including Saint Clair, MI, Sandusky, MI and Port Huron, MI. Call before your visit to confirm the address.
- What is John J. Ference's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does John J. Ference accept Medicare assignment?
- Yes. Medicare's clinician data says John J. Ference 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 J. Ference?
- (810) 561-8450, as listed in official Medicare / NPI Registry data.
- What is John J. Ference's NPI number?
- 1861404618. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John J. Ference works
Medicare's Facility Affiliation Data lists John J. Ference at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension River District HospitalEast China, MI · Acute Care Hospital · closed, according to its website · CCN 230241
- Lake Huron Medical CenterPort Huron, MI · Acute Care Hospital · CCN 230031
- McKenzie Health SystemSandusky, MI · Critical Access Hospital · CCN 231314
- McLaren Bay RegionBay City, MI · Acute Care Hospital · CCN 230041
- McLaren Port HuronPort Huron, MI · Acute Care Hospital · CCN 230216
Practice locations
Addresses where John J. Ference is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 1163 S Carney DrSaint Clair, MI 48079 (810) 561‑8450
- 120 N Delaware StSandusky, MI 48471 (810) 648‑3770
- 1221 Pine Grove AvePort Huron, MI 48060 (810) 987‑5000
- 1231 Pine Grove AvePort Huron, MI 48060
- 1900 Columbus AveBay City, MI 48708 (989) 894‑3000
Group practices
Medicare enrollment lists John J. Ference as a member of these groups (CMS data updated 2026-10-02).
- McLaren Hospital Group375 clinicians in the group
- X-Ray Associates of Port Huron P C27 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Saint Clair
Clinicians with the same Medicare primary specialty in Saint Clair, MI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Michigan Medical School |
| Graduation year | 1994 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1861404618 |
| 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