NPPES file of Aug 9, 2026

Sean M. O'Donnell, MD

Internal Medicine Physician · Damariscotta, ME

Sean M. O'Donnell, MD is an internal medicine physician with a practice address in Damariscotta, Maine, and NPI 1285632695, issued on Jul 9, 2005. Check the license (Maine MD14975, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1285632695
Name
Sean M. O'Donnell
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
MD14975 ME
014975 ME
Self-reported in NPPES; status is on the state search
Practice location
35 Miles St, Damariscotta, ME 04543
Phone
(207) 563-4146
Enumerated
Jul 9, 2005
Record last updated
Oct 22, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(207) 563-3717
Medicaid ID
271000099 ME
Medicare enrollment
Enrolled (PECOS I20040728000896); accepts Medicare assignment
Medical or professional school
Hahneman Medical College Of The Pacific, 1995
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 35 Miles St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Emily Adams, RD, LD. CLCRegistered Dietitian1811685647
  2. Tyler Albrecht, PTPhysical Therapist1417437435
  3. Joan AtkinsonRegistered Dietitian1376109835
  4. Reatha Ballard, CRNACertified Registered Nurse Anesthetist1336106616
  5. Barbara Baribeau, PTPhysical Therapist1225700552
  6. Leticia Bhe, M.D.Hospitalist Physician1649229774

Verify Sean M. O'Donnell in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
    Search for license MD14975
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maine license search

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94% fewer Medicare Part D claims than the average internal medicine physician in 2024

200 Medicare Part D claims for 81 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Sean O'Donnell200
  2. Specialty average3,176

Most prescribed

  1. Prednisone20 claims
  2. Cefuroxime18 claims
  3. Alfuzosin Hcl Er11 claims
  4. Doxycycline Monohydrate11 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.

  1. Qualityout of 100 · 30% of the final score86.1
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. MainehealthBrunswick, ME

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

7 internal medicine physician records list a practice address in Damariscotta

They are 7 of the 275 NPPES records with a practice address in Damariscotta, and 597 internal medicine physician records in Maine.

Other internal medicine physician records in Maine

  1. George Abboud, MDBiddeford, ME1376612945
  2. Karen Abernathy, M.D.Rockport, ME1124312335
  3. Hassan Abouleish, MDHoulton, ME1255300307
  4. Philip Abraham, M.D.Kittery, ME1497750764
  5. Elizabeth Ackerson, MDPortland, ME1912920117
  6. Lindsey Ackley-Pozzessere, DOBrunswick, ME1477991842
  7. Todd Adams, MDMoody, ME1427165778
  8. Muhammad Umer Ahmed, MDBangor, ME1134893183
  9. Samer Al-Ameri, MDBangor, ME1225514854
  10. Ali Al-OmariBangor, ME1447634431

Common questions

What is Sean M. O'Donnell, MD's NPI number?

Sean M. O'Donnell, MD's National Provider Identifier (NPI) is 1285632695, issued on Jul 9, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Sean M. O'Donnell, MD located?

The NPPES record lists a practice address at 35 Miles St, Damariscotta, ME, 04543. Phone: (207) 563-4146. Providers update this record themselves, so call before visiting.

How can I verify Sean M. O'Donnell, MD's license?

NPPES lists Maine license number MD14975, 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 Sean M. O'Donnell, MD prescribe under Medicare Part D?

In 2024, Sean M. O'Donnell, MD had 200 Medicare Part D claims for 81 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Sean M. O'Donnell, MD'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.