Patrick M. O'Brien, M.D.
Obstetrics & Gynecology Physician · Damariscotta, ME
Patrick M. O'Brien, M.D. is an obstetrics & gynecology physician with a practice address in Damariscotta, Maine, and NPI 1295711042, issued on Dec 22, 2005. Check the license (Maine MD26107, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Patrick M. O'Brien
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- MD26107 ME
74029 MA
Self-reported in NPPES; status is on the state search - Practice location
- 24 Miles Center Way, Damariscotta, ME 04543
- Phone
- (207) 563-1234
- Enumerated
- Dec 22, 2005
- Record last updated
- Nov 2, 2022
- Medicaid ID
- 411217200 MD
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 205 in Maine → Look up another NPI →
Also registered at 24 Miles Center Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lori Ann, FNPFamily Nurse Practitioner1245895234
- Jennifer Averill, PMHNPPsychiatric/Mental Health Nurse Practitioner1548050792
- Janet Azevedo, NPAdult Health Nurse Practitioner1902254410
- Michael Baldwin, PASurgical Physician Assistant1013016096
- Linda Brouwer, FNPFamily Nurse Practitioner1609208032
- Jacqueline Brown, MDObstetrics & Gynecology Physician1396729851
Verify Patrick M. O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license MD26107Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
78 Medicare Part D claims for 44 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol19 claims
- Clobetasol Propionate18 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).
Patrick M. O'Brien among 205 obstetrics & gynecology physician records in Maine
Patrick M. O'Brien, M.D. is one of 205 obstetrics & gynecology physician records with a practice address in Maine. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 89% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2022 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 obstetrics & gynecology physician records list a practice address in Damariscotta
They are 6 of the 275 NPPES records with a practice address in Damariscotta, and 205 obstetrics & gynecology physician records in Maine.
All 205 in Maine → Every provider in Damariscotta → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Jacqueline Brown, MDDamariscotta, ME 045431396729851
- Deborah Eisenberg, MDDamariscotta, ME 045431275679938
- Robert Howard, M.D.Damariscotta, ME 045431689649204
- William Riley, M.D.Damariscotta, ME 045431467619841
- Randy WobserDamariscotta, ME 045431619961919
- Eugenia Kolkas, MDEllsworth, ME 046051770698227
- Kristen McNulty, MDEllsworth, ME 046051699764266
- Barbara Mercado-Stallard, MDEllsworth, ME 046051396734497
Common questions
What is Patrick M. O'Brien, M.D.'s NPI number?
Patrick M. O'Brien, M.D.'s National Provider Identifier (NPI) is 1295711042, issued on Dec 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Patrick M. O'Brien, M.D. located?
The NPPES record lists a practice address at 24 Miles Center Way, Damariscotta, ME, 04543. Phone: (207) 563-1234. Providers update this record themselves, so call before visiting.
How can I verify Patrick M. O'Brien, M.D.'s license?
NPPES lists Maine license number MD26107, 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 Patrick M. O'Brien, M.D. prescribe under Medicare Part D?
In 2024, Patrick M. O'Brien, M.D. had 78 Medicare Part D claims for 44 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is Patrick M. O'Brien, M.D.'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.