John F. Cassidy, PA-C
Physician Assistant · Eastport, ME
John F. Cassidy, PA-C is a physician assistant with a practice address in Eastport, Maine, and NPI 1891890166, issued on Sep 13, 2006. Check the license (Maine PA389, as entered in NPPES) with the Maine board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John F. Cassidy
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA389 ME
Self-reported in NPPES; status is on the state search - Practice location
- 30 Boynton St, Eastport, ME 04631
- Phone
- (207) 853-6001
- Enumerated
- Sep 13, 2006
- Record last updated
- Feb 4, 2026
- Medicaid ID
- 259290099 ME
- Medicare enrollment
- Enrolled (PECOS I20070626000561); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 979 in Maine → Look up another NPI →
Also registered at 30 Boynton St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David Brass, LADCAddiction (Substance Use Disorder) Counselor1427302272
- Brian BrooksMental Health Counselor1225223357
- Jan Brown, CADCCounselor1871807842
- Tammy CarrProfessional Counselor1528483682
- Kathi Dimiceli, LCSWClinical Social Worker1205847043
- Jennifer Doucette, PMHNPPsychiatric/Mental Health Nurse Practitioner1437090065
Verify John F. Cassidy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maine board licenses this profession
Search for license PA389Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average physician assistant in 2024
66 Medicare Part D claims for 49 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 42 claims were for opioids.
Most prescribed
- Oxycodone Hcl19 claims
- Methocarbamol11 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
- Eastport Health Care, IncMachias, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John F. Cassidy among 979 physician assistant records in Maine
John F. Cassidy, PA-C is one of 979 physician assistant records with a practice address in Maine. 79% 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 3% of them.
- NPI issued2006 · 3% of these records are older, 73% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1992 · median 2017 among the 648 with a school on file
- Record last updated2026 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 physician assistant record lists a practice address in Eastport
They are 1 of the 25 NPPES records with a practice address in Eastport, and 979 physician assistant records in Maine.
All 979 in Maine → Every provider in Eastport → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Susan Gartland, PA-CHarrington, ME 046431639270309
- Halie Harris, PA-CCalais, ME 046191134775141
- Eric Morris, PA-CHarrington, ME 046431700411980
- Alfred Wakeman, PAHarrington, ME 046431124071287
- Collin Zelinsky, PACHarrington, ME 046431518497395
- John Bastin, PA-CBlue Hill, ME 046141841263142
- Sarah CarterBlue Hill, ME 046141154100741
- Kurt Judson, PA-CBlue Hill, ME 046141093877664
Common questions
What is John F. Cassidy, PA-C's NPI number?
John F. Cassidy, PA-C's National Provider Identifier (NPI) is 1891890166, issued on Sep 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John F. Cassidy, PA-C located?
The NPPES record lists a practice address at 30 Boynton St, Eastport, ME, 04631. Phone: (207) 853-6001. Providers update this record themselves, so call before visiting.
How can I verify John F. Cassidy, PA-C's license?
NPPES lists Maine license number PA389, as entered by the provider. Search the Maine board that licenses this profession; the NPPES record confirms identity only.
How much does John F. Cassidy, PA-C prescribe under Medicare Part D?
In 2024, John F. Cassidy, PA-C had 66 Medicare Part D claims for 49 beneficiaries; the average among physician assistant prescribers was 830. 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.