Thomas John Duff, DO
Emergency Medicine Physician · Damariscotta, ME
Thomas John Duff, DO is an emergency medicine physician with a practice address in Damariscotta, Maine, and NPI 1326421728, issued on Jul 2, 2015. Check the license (Maine DO3033, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Thomas John Duff
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- DO3033 ME
Self-reported in NPPES; status is on the state search - Practice location
- 35 Miles St, Damariscotta, ME 04543
- Phone
- (207) 563-4521
- Enumerated
- Jul 2, 2015
- Record last updated
- Apr 22, 2025
- Fax
- (207) 810-4989
- Medicare enrollment
- Enrolled (PECOS I20200810002771); accepts Medicare assignment
- Medical or professional school
- University Of New England, College Of Osteo Medicine, 2015
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 466 in Maine → Look up another NPI →
Also registered at 35 Miles St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Thomas John Duff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license DO3033Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% fewer Medicare Part D claims than the average emergency medicine physician in 2024
217 Medicare Part D claims for 164 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Cephalexin27 claims
- Doxycycline Monohydrate22 claims
- Prednisone22 claims
- Ondansetron Odt14 claims
- Azithromycin13 claims
- Oxycodone Hcl13 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.
The MIPS final score for 2023 (Medicare payment program): 98.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- MainehealthDamariscotta, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thomas John Duff among 466 emergency medicine physician records in Maine
Thomas John Duff, DO is one of 466 emergency medicine physician records with a practice address in Maine. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 71% of them.
- NPI issued2015 · 71% of these records are older, 26% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2015 · median 2011 among the 293 with a school on file
- Record last updated2025 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 emergency medicine physician records list a practice address in Damariscotta
They are 5 of the 275 NPPES records with a practice address in Damariscotta, and 466 emergency medicine physician records in Maine.
All 466 in Maine → Every provider in Damariscotta → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Daniel Bates, M.D.Damariscotta, ME 045431659533792
- Timothy Fox, M.D.Damariscotta, ME 045431104903525
- Jaime JonesDamariscotta, ME 045431508181439
- John Murray, M.D.Damoriscotta, ME 045431902960792
- Nicholas Walter, MDDamariscotta, ME 045431003310277
- Kenneth Christian, MDEllsworth, ME 046051194772970
- Mark Kaplan, DOEllsworth, ME 046051861498461
- Edwin Layng, M.D.Ellsworth, ME 046051255714622
Common questions
What is Thomas John Duff, DO's NPI number?
Thomas John Duff, DO's National Provider Identifier (NPI) is 1326421728, issued on Jul 2, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Thomas John Duff, DO located?
The NPPES record lists a practice address at 35 Miles St, Damariscotta, ME, 04543. Phone: (207) 563-4521. Providers update this record themselves, so call before visiting.
How can I verify Thomas John Duff, DO's license?
NPPES lists Maine license number DO3033, 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 Thomas John Duff, DO prescribe under Medicare Part D?
In 2024, Thomas John Duff, DO had 217 Medicare Part D claims for 164 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Thomas John Duff, DO's MIPS final score?
The 2023 MIPS final score is 98.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.