Jonathan Gasper, MD
Family Medicine Physician · Winthrop, ME
Jonathan Gasper, MD is a family medicine physician with a practice address in Winthrop, Maine, and NPI 1932133592, issued on Jul 10, 2006. Check the license (Maine 018626, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Jonathan Gasper
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 018626 ME
9601152 NC
Self-reported in NPPES; status is on the state search - Practice location
- 149 Main St, Winthrop, ME 04364
- Phone
- (207) 624-3800
- Enumerated
- Jul 10, 2006
- Entity
- Type 1 · individual
Also registered at 149 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Peter Dewolfe, MDFamily Medicine Physician1932175742
- Christine Fletcher, NP-CFamily Nurse Practitioner1497068506
- Carol Mansfield, MDPediatrics Physician1831165422
- Rochelle Murphy, FNP-CFamily Nurse Practitioner1245585108
- Richard Possee, PAPhysician Assistant1013983758
- Mark Rolfe, MDFamily Medicine Physician1821064338
Verify Jonathan Gasper in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license 018626Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
2.4 times the Medicare Part D claims of the average family medicine physician in 2024
8,464 Medicare Part D claims for 604 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 667 claims were for opioids.
Most prescribed
- Atorvastatin Calcium370 claims
- Oxycodone Hcl343 claims
- Levothyroxine Sodium299 claims
- Lisinopril254 claims
- Losartan Potassium244 claims
- Pantoprazole Sodium208 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.
6 family medicine physician records list a Winthrop practice address
They are 6 of the 85 NPPES records with a Winthrop practice address, and 1,168 family medicine physician records in Maine.
All 6 in Winthrop → All 1,168 in Maine → Every provider in Winthrop →
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 Jonathan Gasper, MD's NPI number?
Jonathan Gasper, MD's National Provider Identifier (NPI) is 1932133592, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan Gasper, MD located?
The NPPES record lists a practice address at 149 Main St, Winthrop, ME, 04364. Phone: (207) 624-3800. Providers update this record themselves, so call before visiting.
How can I verify Jonathan Gasper, MD's license?
NPPES lists Maine license number 018626, 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 Jonathan Gasper, MD prescribe under Medicare Part D?
In 2024, Jonathan Gasper, MD had 8,464 Medicare Part D claims for 604 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.