Dianna Stade Gagnon, MD
Family Medicine Physician · Westbrook, ME
Dianna Stade Gagnon, MD is a family medicine physician with a practice address in Westbrook, Maine, and NPI 1184283665, issued on Jun 10, 2019. Check the license (Maine MD25864, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Dianna Stade Gagnon
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- MD25864 ME
EC191062 ME
Self-reported in NPPES; status is on the state search - Practice location
- 90 Bridge St Ste 432, Westbrook, ME 04092
- Phone
- (207) 619-0315
- Enumerated
- Jun 10, 2019
- Record last updated
- Aug 25, 2022
- Fax
- (207) 481-8369
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,172 in Maine → Look up another NPI →
Verify Dianna Stade Gagnon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license MD25864Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average family medicine physician in 2024
137 Medicare Part D claims for 15 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Famotidine14 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.
Dianna Stade Gagnon among 1,172 family medicine physician records in Maine
Dianna Stade Gagnon, 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 2019, is newer than 85% of them.
- NPI issued2019 · 85% of these records are older, 12% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2022 · 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).
11 family medicine physician records list a practice address in Westbrook
They are 11 of the 559 NPPES records with a practice address in Westbrook, and 1,172 family medicine physician records in Maine.
All 1,172 in Maine → Every provider in Westbrook → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Douglas Aiken, MDWestbrook, ME 040921093774119
- Ronald Ashkenasy, D.O..Westbrook, ME 040921376580647
- William Feero, MD, PHDWestbrook, ME 040921285600239
- Marc Kimball, M.D.Westbrook, ME 040921467815274
- Catherine Lockwood, MDWestbrook, ME 040921750340154
- Debra Lumbert, M.D.Westbrook, ME 040921710928858
- Geraldine Ollila, D.O.Westbrook, ME 040921043252364
- Kristina Parisien, M.D.Westbrook, ME 040921124061726
Common questions
What is Dianna Stade Gagnon, MD's NPI number?
Dianna Stade Gagnon, MD's National Provider Identifier (NPI) is 1184283665, issued on Jun 10, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Dianna Stade Gagnon, MD located?
The NPPES record lists a practice address at 90 Bridge St Ste 432, Westbrook, ME, 04092. Phone: (207) 619-0315. Providers update this record themselves, so call before visiting.
How can I verify Dianna Stade Gagnon, MD's license?
NPPES lists Maine license number MD25864, 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 Dianna Stade Gagnon, MD prescribe under Medicare Part D?
In 2024, Dianna Stade Gagnon, MD had 137 Medicare Part D claims for 15 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.