Quick answers
- Which hospitals does Timothy M. Mahon work at?
- Medicare's official clinician data lists Timothy M. Mahon at 3 hospitals: Helen Newberry Joy Hospital, McLaren Bay Region and Uphs Marquette DLP Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Timothy M. Mahon see patients?
- Medicare's clinician data lists 3 practice locations, including Marquette, MI, Bay City, MI and Newberry, MI. Call before your visit to confirm the address.
- What is Timothy M. Mahon's specialty?
- Medicare lists Emergency Medicine as the primary specialty, and also Family Practice.
- Does Timothy M. Mahon accept Medicare assignment?
- Yes. Medicare's clinician data says Timothy M. Mahon 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 Timothy M. Mahon?
- (906) 225-3870, as listed in official Medicare / NPI Registry data.
- What is Timothy M. Mahon's NPI number?
- 1194012807. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Timothy M. Mahon works
Medicare's Facility Affiliation Data lists Timothy M. Mahon at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Helen Newberry Joy HospitalNewberry, MI · Critical Access Hospital · CCN 231304
- McLaren Bay RegionBay City, MI · Acute Care Hospital · CCN 230041
- Uphs Marquette DLP HospitalMarquette, MI · Acute Care Hospital · CCN 230054
Practice locations
Addresses where Timothy M. Mahon is enrolled with Medicare (CMS data updated 2026-10-02).
- 1414 W Fair AveMarquette, MI 49855 (906) 225‑3870
- 1900 Columbus AveBay City, MI 48708 (989) 894‑3000
- 502 W Harrie StNewberry, MI 49868 (906) 293‑9200
Group practices
Medicare enrollment lists Timothy M. Mahon as a member of these groups (CMS data updated 2026-10-02).
- McLaren Hospital Group375 clinicians in the group
- DLP Marquette Physician Practices Inc197 clinicians in the group
- Helen Newberry Joy Hospital and Healthcare Center37 clinicians in the group
Specialties
- Emergency Medicineprimary
- Family Practicealso
Other emergency medicine doctors in Marquette
Clinicians with the same Medicare primary specialty in Marquette, MI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Michigan State University College Of Osteopathic Medicine |
| Graduation year | 2011 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1194012807 |
| 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