Patrick James Gagnon, MD
Radiation Oncology Physician · Fairhaven, MA
Patrick James Gagnon, MD is a radiation oncology physician with a practice address in Fairhaven, Massachusetts, and NPI 1588869366, issued on Jun 20, 2007. Check the license (Massachusetts 243265, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Patrick James Gagnon
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 243265 MA
Self-reported in NPPES; status is on the state search - Practice location
- 206 Mill RD, Fairhaven, MA 02719
- Phone
- (508) 973-3000
- Enumerated
- Jun 20, 2007
- Record last updated
- Apr 22, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (508) 973-3119
- Medicaid ID
- 110085893A MA
- Medicare enrollment
- Enrolled (PECOS I20100929001513); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 2005
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 241 in Massachusetts → Look up another NPI →
Also registered at 206 Mill RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth Blanchard, MDHematology & Oncology Physician1134198989
- Katherine CarpenterNurse Practitioner1356297121
- Jennifer Ducie, M.D.Gynecologic Oncology Physician1437326105
- Dianne Feeney, NPNurse Practitioner1013943323
- Rachel FinneyNurse Practitioner1477205011
- Kelly Gunn, NPNurse Practitioner1487313631
Verify Patrick James Gagnon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 243265Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
51% more Medicare Part D claims than the average radiation oncology physician in 2024
203 Medicare Part D claims for 91 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. 33 claims were for opioids.
Most prescribed
- Tamsulosin Hcl56 claims
- Lidocaine Hcl Viscous45 claims
- Fentanyl18 claims
- Memantine Hcl11 claims
- Oxycodone Hcl11 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.
Bills Medicare through one group practice
- Southcoast Physicians Group IncFall River, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Patrick James Gagnon among 241 radiation oncology physician records in Massachusetts
Patrick James Gagnon, MD is one of 241 radiation oncology physician records with a practice address in Massachusetts. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 49% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2005 · median 2006 among the 172 with a school on file
- Record last updated2020 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Massachusetts
There are 241 radiation oncology physician records in Massachusetts.
All 241 in Massachusetts → Every provider in Fairhaven → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Tushar Kumar, MDFall River, MA 027201962623843
- William Mueller, MDFall River, MA 027201285639997
- Raymond Dugal, MDFall River, MA 027211700842853
- Jason LeeFall River, MA 027211629026638
- Rita Linggood, MDFall River, MA 027211487610549
- Derek Mumaw, MDDartmouth, MA 027471013532449
- Daniel Canaday, MDHyannis, MA 026011427042266
- Ethan GlazenerHyannis, MA 026011831620475
Common questions
What is Patrick James Gagnon, MD's NPI number?
Patrick James Gagnon, MD's National Provider Identifier (NPI) is 1588869366, issued on Jun 20, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Patrick James Gagnon, MD located?
The NPPES record lists a practice address at 206 Mill RD, Fairhaven, MA, 02719. Phone: (508) 973-3000. Providers update this record themselves, so call before visiting.
How can I verify Patrick James Gagnon, MD's license?
NPPES lists Massachusetts license number 243265, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Patrick James Gagnon, MD prescribe under Medicare Part D?
In 2024, Patrick James Gagnon, MD had 203 Medicare Part D claims for 91 beneficiaries; the average among radiation oncology physician prescribers was 134. 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.