Gregory Scott O'Neill, MD
Family Medicine Physician · Kennebunk, ME
Gregory Scott O'Neill, MD is a family medicine physician with a practice address in Kennebunk, Maine, and NPI 1871600254, issued on Aug 23, 2006. Check the license (Maine MD20428, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Gregory Scott O'Neill
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- MD20428 ME
036-084531 IL
48511 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2 Livewell Dr, Kennebunk, ME 04043
- Phone
- (207) 467-6900
- Enumerated
- Aug 23, 2006
- Record last updated
- Mar 11, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,172 in Maine → Look up another NPI →
Also registered at 2 Livewell Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Debra AlexandrePhysical Therapist1144882549
- Ali Arsenault, MS, OTR/LOccupational Therapist1083274682
- Martha Bear, DOFamily Medicine Physician1306013180
- Melissa Beauregard, NPFamily Nurse Practitioner1770184269
- Campbell Belisle Haley, MDPain Medicine Physician1316524234
- Gage Bollinger, DOFamily Medicine Physician1417538653
Verify Gregory Scott O'Neill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license MD20428Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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).
Gregory Scott O'Neill among 1,172 family medicine physician records in Maine
Gregory Scott O'Neill, MD is one of 1,172 family medicine physician records with a practice address in Maine. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 52% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2019 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
24 family medicine physician records list a practice address in Kennebunk
They are 24 of the 386 NPPES records with a practice address in Kennebunk, and 1,172 family medicine physician records in Maine.
All 1,172 in Maine → Every provider in Kennebunk → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Andrea Brown, M.D.Kennebunk, ME 040431881657187
- Elisabeth Delprete, D.O.Kennebunk, ME 040431952387805
- Merrill Farrand, DOKennebunk, ME 040431568494011
- Earl Freeman, D.O.Kennebunk, ME 040431235163890
- Kelly Hayday, M.D.Kennebunk, ME 040431699746909
- Patrick Mulcahy, D.O.Kennebunk, ME 040431316919756
- Merideth Norris, DOKennebunk, ME 040431386684868
- Audrey Okun-Langlais, D.O.Kennebunk, ME 040431194701565
Common questions
What is Gregory Scott O'Neill, MD's NPI number?
Gregory Scott O'Neill, MD's National Provider Identifier (NPI) is 1871600254, issued on Aug 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Scott O'Neill, MD located?
The NPPES record lists a practice address at 2 Livewell Dr, Kennebunk, ME, 04043. Phone: (207) 467-6900. Providers update this record themselves, so call before visiting.
How can I verify Gregory Scott O'Neill, MD's license?
NPPES lists Maine license number MD20428, 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.
What is Gregory Scott O'Neill, 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.