Quick answers
- Which hospitals does Timothy Cahill work at?
- Medicare's official clinician data lists Timothy Cahill at 2 hospitals: Trinity Health Ann Arbor Hospital and Trinity Health Livingston Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Timothy Cahill see patients?
- Medicare's clinician data lists 3 practice locations, including Grand Rapids, MI, Ypsilanti, MI and Maumee, OH. Call before your visit to confirm the address.
- What is Timothy Cahill's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Timothy Cahill accept Medicare assignment?
- Medicare's clinician data says Timothy Cahill may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Timothy Cahill?
- (616) 685-5000, as listed in official Medicare / NPI Registry data.
- What is Timothy Cahill's NPI number?
- 1215977400. 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 Cahill works
Medicare's Facility Affiliation Data lists Timothy Cahill at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Trinity Health Ann Arbor HospitalAnn Arbor, MI · Acute Care Hospital · CCN 230156
- Trinity Health Livingston HospitalBrighton, MI · Acute Care Hospital · CCN 230069
Practice locations
Addresses where Timothy Cahill is enrolled with Medicare (CMS data updated 2026-10-02).
- 200 Jefferson Ave SEGrand Rapids, MI 49503 (616) 685‑5000
- 5301 E Huron River DrYpsilanti, MI 48197 (734) 712‑3456
- 5959 Monclova RdMaumee, OH 43537 (419) 893‑5911
Group practices
Medicare enrollment lists Timothy Cahill as a member of these groups (CMS data updated 2026-10-02).
- Anesthesia Associates of Ann Arbor PLLC219 clinicians in the group
- A4 of Ohio LLC33 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Grand Rapids
Clinicians with the same Medicare primary specialty in Grand Rapids, MI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Iowa, Rj & L Carver College Of Medicine |
| Graduation year | 2001 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1215977400 |
| 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