Duncan Joseph Flynn, MD
Gastroenterology Physician · Biddeford, ME
Duncan Joseph Flynn, MD is a gastroenterology physician with a practice address in Biddeford, Maine, and NPI 1265991392, issued on Mar 18, 2019. Check the license (Maine MD29047, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Duncan Joseph Flynn
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- MD29047 ME
Self-reported in NPPES; status is on the state search - Practice location
- 9 Healthcare Dr Ste 202, Biddeford, ME 04005
- Phone
- (207) 283-1427
- Enumerated
- Mar 18, 2019
- Record last updated
- Jul 24, 2025
- Fax
- (207) 294-3554
- Medicare enrollment
- Enrolled (PECOS I20250612003257); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 9 Healthcare Dr Ste 202
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gustavo Churrango, MDGastroenterology Physician1356786925
- Dylan Clemens, PA-CPhysician Assistant1811481807
- Thomas Cote, AGPCNPNurse Practitioner1194499426
- Sara FixMedical Physician Assistant1073056412
- Winoah Henry, MDGastroenterology Physician1043456049
- Kellen Hipp, D.OGastroenterology Physician1427406701
Verify Duncan Joseph Flynn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license MD29047Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average gastroenterology physician in 2024
158 Medicare Part D claims for 53 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Omeprazole31 claims
- Creon19 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.
Bills Medicare through one group practice
- MainehealthBiddeford, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gastroenterology Physician providers in Maine
There are 86 gastroenterology physician records in Maine.
Other gastroenterology physician records in Maine
- Phillip Amidon, MDBangor, ME1235222043
- Miguel Arguedas - Brollo, MDBrunswick, ME1043267396
- Newell Augur, MDPortland, ME1356569529
- Noemi Baffy, MDPortland, ME1164710075
- Brian Baggott, M.D.Augusta, ME1407813306
- Brian Berberian, M.D.Bangor, ME1861422586
- Kirk Bernadino, MDRockport, ME1871523290
- Richard Beveridge, M.D.Brunswick, ME1134144058
- Oswaldo Bisbal, MDLewiston, ME1487686242
- Mark Branda, MDLewiston, ME1861619058
Common questions
What is Duncan Joseph Flynn, MD's NPI number?
Duncan Joseph Flynn, MD's National Provider Identifier (NPI) is 1265991392, issued on Mar 18, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Duncan Joseph Flynn, MD located?
The NPPES record lists a practice address at 9 Healthcare Dr Ste 202, Biddeford, ME, 04005. Phone: (207) 283-1427. Providers update this record themselves, so call before visiting.
How can I verify Duncan Joseph Flynn, MD's license?
NPPES lists Maine license number MD29047, 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 Duncan Joseph Flynn, MD prescribe under Medicare Part D?
In 2024, Duncan Joseph Flynn, MD had 158 Medicare Part D claims for 53 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.