Nancy O'Neill, MD
Family Medicine Physician · Mars Hill, ME
Nancy O'Neill, MD is a family medicine physician with a practice address in Mars Hill, Maine, and NPI 1467556548, issued on Sep 11, 2006. Check the license on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Nancy O'Neill
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- Practice location
- 106 Main St, Mars Hill, ME 04758
- Phone
- (207) 429-8333
- Enumerated
- Sep 11, 2006
- Entity
- Type 1 · individual
Also registered at 106 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shelby Stiles, FNPPrimary Care Nurse Practitioner1134558067
Verify Nancy O'Neill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in MedicineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
98% fewer Medicare Part D claims than the average family medicine physician in 2024
85 Medicare Part D claims for 40 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. 15 claims were for opioids.
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.
2 family medicine physician records list a Mars Hill practice address
They are 2 of the 23 NPPES records with a Mars Hill practice address, and 1,168 family medicine physician records in Maine.
All 2 in Mars Hill → All 1,168 in Maine → Every provider in Mars Hill →
Other family medicine physician records in Maine
- Jeffrey Aalberg, MDFalmouth, ME1669400222
- Elizabeth Abbas, DOFarmington, ME1932588100
- Robert Abrams, M.D.Lubec, ME1720067010
- Andrea Abrell, DOAugusta, ME1558525188
- Katie Adams, MDLincoln, ME1154764975
- Sophia AdamsPortland, ME1073961892
- Thomas Adams, MDSouthwest Harbor, ME1851331565
- Rebecca Adamson, MDLewiston, ME1912313982
- Constance Adler, M.D., F.A.A.F.P.Farmington, ME1487689675
- Devesh Agarwal, M.D.Lincoln, ME1710116876
Common questions
What is Nancy O'Neill, MD's NPI number?
Nancy O'Neill, MD's National Provider Identifier (NPI) is 1467556548, issued on Sep 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nancy O'Neill, MD located?
The NPPES record lists a practice address at 106 Main St, Mars Hill, ME, 04758. Phone: (207) 429-8333. Providers update this record themselves, so call before visiting.
How can I verify Nancy O'Neill, MD's license?
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 Nancy O'Neill, MD prescribe under Medicare Part D?
In 2024, Nancy O'Neill, MD had 85 Medicare Part D claims for 40 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.