Quick answers
- Which hospitals does Brian Gillis work at?
- Medicare's official clinician data lists Brian Gillis at 2 hospitals: Newman Memorial Hospital and St Mary's Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Brian Gillis see patients?
- Medicare's clinician data lists 4 practice locations, including Woodward, OK and Shattuck, OK. Call before your visit to confirm the address.
- What is Brian Gillis's specialty?
- Medicare lists Colorectal Surgery (Proctology) as the primary specialty.
- Does Brian Gillis accept Medicare assignment?
- Yes. Medicare's clinician data says Brian 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 Brian Gillis?
- (580) 571-3160, as listed in official Medicare / NPI Registry data.
- What is Brian Gillis's NPI number?
- 1386711877. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Brian Gillis works
Medicare's Facility Affiliation Data lists Brian Gillis at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Newman Memorial HospitalShattuck, OK · Critical Access Hospital · CCN 371336
- St Mary's Regional Medical CenterLewiston, ME · Acute Care Hospital · CCN 200034
Practice locations
Addresses where Brian Gillis is enrolled with Medicare (CMS data updated 2026-10-02).
- 1000 15th StWoodward, OK 73801 (580) 571‑3160
- 169259 E County Rd, Suite 70Shattuck, OK 73858
- 905 S MainShattuck, OK 73858
- 905 S Main StShattuck, OK 73858 (580) 938‑2551
Group practices
Medicare enrollment lists Brian Gillis as a member of this group (CMS data updated 2026-10-02).
- Newman Memorial Hospital, Inc33 clinicians in the group
Specialties
Find other Colorectal Surgery (Proctology) doctors in Oklahoma →
Other colorectal surgeons in Oklahoma
Clinicians with the same Medicare primary specialty in Oklahoma — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of New England, College Of Osteo Medicine |
| Graduation year | 1995 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1386711877 |
| 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