Quick answers
- Which hospitals does Callaghan J. Gillis work at?
- Medicare's official clinician data lists Callaghan J. Gillis at 1 hospital: Northern Light Eastern Maine Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Callaghan J. Gillis see patients?
- Medicare's clinician data lists 1 practice location in Bangor, ME. Call before your visit to confirm the address.
- What is Callaghan J. Gillis's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Callaghan J. Gillis accept Medicare assignment?
- Yes. Medicare's clinician data says Callaghan J. Gillis 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 Callaghan J. Gillis?
- (207) 973-7000, as listed in official Medicare / NPI Registry data.
- What is Callaghan J. Gillis's NPI number?
- 1013534312. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Callaghan J. Gillis works
Medicare's Facility Affiliation Data lists Callaghan J. Gillis at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Northern Light Eastern Maine Medical CenterBangor, ME · Acute Care Hospital · CCN 200033
Practice locations
Addresses where Callaghan J. Gillis is enrolled with Medicare (CMS data updated 2026-10-02).
- 489 State StBangor, ME 04401 (207) 973‑7000
Group practices
Medicare enrollment lists Callaghan J. Gillis as a member of this group (CMS data updated 2026-10-02).
- Eastern Maine Medical Center624 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Bangor
Clinicians with the same Medicare primary specialty in Bangor, ME — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2015 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1013534312 |
| 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