Brian Gillis, DO
Colon & Rectal Surgery Physician · Oakland, ME
Brian Gillis, DO is a colon & rectal surgery physician with a practice address in Oakland, Maine, and NPI 1386711877, issued on Nov 29, 2006. Check the license (Maine 1513, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Brian Gillis
- Credential
- DO
- Primary taxonomy
- Colon & Rectal Surgery Physician 208C00000X
- License number
- 1513 ME
Self-reported in NPPES; status is on the state search - Practice location
- 8 Water St, Oakland, ME 04963
- Phone
- (207) 465-3003
- Enumerated
- Nov 29, 2006
- Record last updated
- May 26, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (207) 465-7352
- Medicaid ID
- 154490099 ME
- Medicare enrollment
- Enrolled (PECOS I20260512001948); accepts Medicare assignment
- Medical or professional school
- University Of New England, College Of Osteo Medicine, 1995
- Entity
- Type 1 · individual
8 nearest colon & rectal surgery physician records → All 9 in Maine → Look up another NPI →
Also registered at 8 Water St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dianne Howard Morand, LCSWClinical Social Worker1356619670
Verify Brian Gillis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license 1513Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average colon & rectal surgery physician in 2024
410 Medicare Part D claims for 142 beneficiaries, against an average of 192 among the 1,836 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 11 claims were for opioids.
Most prescribed
- Hydrocortisone80 claims
- Linzess42 claims
- Procto-Med Hc42 claims
- Nystatin25 claims
- Cholestyramine19 claims
- Diazepam14 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $79.53
4 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 1,524 providers of this specialty with any payment received $3,468.16 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Newman Memorial Hospital, IncShattuck, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Colon & Rectal Surgery Physician providers in Maine
There are 9 colon & rectal surgery physician records in Maine.
All 9 in Maine → Every provider in Oakland → Colon & Rectal Surgery Physician nationwide →
The 8 colon & rectal surgery physician records with the nearest ZIP codes
- Jerald Hurdle, D.O.Waterville, ME 049011184648784
- Reza Rahbar-Semnani, MDRockport, ME 048561952540247
- Marie Audett, MDPortland, ME 041021891920823
- Kathreen Lee, MDPortland, ME 041021639304132
- Joseph Mack, M.D.Portland, ME 041021114380615
- Cathel Macleod, MDPortland, ME 041021851479034
- Melville RobertsPortland, ME 041021235217456
- Richard Stockwell, DOWestbrook, ME 040921275570541
Common questions
What is Brian Gillis, DO's NPI number?
Brian Gillis, DO's National Provider Identifier (NPI) is 1386711877, issued on Nov 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Brian Gillis, DO located?
The NPPES record lists a practice address at 8 Water St, Oakland, ME, 04963. Phone: (207) 465-3003. Providers update this record themselves, so call before visiting.
How can I verify Brian Gillis, DO's license?
NPPES lists Maine license number 1513, as entered by the provider. Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Brian Gillis, DO prescribe under Medicare Part D?
In 2024, Brian Gillis, DO had 410 Medicare Part D claims for 142 beneficiaries; the average among colon & rectal surgery physician prescribers was 192. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.