John Joseph Parker, MD
Internal Medicine Physician · Topsham, ME
John Joseph Parker, MD is an internal medicine physician with a practice address in Topsham, Maine, and NPI 1821005109, issued on Aug 1, 2006. Check the license (Maine 013640, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- John Joseph Parker
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 013640 ME
Self-reported in NPPES; status is on the state search - Practice location
- 1 Wellness Way, Topsham, ME 04086
- Phone
- (207) 406-7600
- Enumerated
- Aug 1, 2006
- Record last updated
- Jan 22, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (207) 406-7601
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 597 in Maine → Look up another NPI →
Also registered at 1 Wellness Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah Alto, FNPFamily Nurse Practitioner1487934436
- Anthony Caiazzo, APRN-CNPFamily Nurse Practitioner1306436902
- Michelle CharlesonRegistered Nurse1811847494
- Patricia Davis, LCSWClinical Social Worker1366504516
- Debra Francis, NPNurse Practitioner1497483465
- Shannon Gaines, PA-CPhysician Assistant1588277958
Verify John Joseph Parker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license 013640Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
67 Medicare Part D claims for 13 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Famotidine13 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.
John Joseph Parker among 597 internal medicine physician records in Maine
John Joseph Parker, MD is one of 597 internal medicine physician records with a practice address in Maine. 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 44% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2015 · 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 207R00000X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 internal medicine physician records list a practice address in Topsham
They are 4 of the 184 NPPES records with a practice address in Topsham, and 597 internal medicine physician records in Maine.
All 597 in Maine → Every provider in Topsham → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Daniel Chase, MDTopsham, ME 040861942217237
- Bryan Lewis, M.D.Topsham, ME 040861194836791
- Jennifer Riehl, MDTopsham, ME 040861700897618
- Michael Batt, MDWestbrook, ME 040921952406266
- Ravi Chandrasekaran, D.O.Westbrook, ME 040921538101886
- Elizabeth Dennis, D.O.Westbrook, ME 040921073714721
- Stephen Hayes, M.D.Westbrook, ME 040921255369575
- Ellis Johnson, MDWestbrook, ME 040921215196985
Common questions
What is John Joseph Parker, MD's NPI number?
John Joseph Parker, MD's National Provider Identifier (NPI) is 1821005109, issued on Aug 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Joseph Parker, MD located?
The NPPES record lists a practice address at 1 Wellness Way, Topsham, ME, 04086. Phone: (207) 406-7600. Providers update this record themselves, so call before visiting.
How can I verify John Joseph Parker, MD's license?
NPPES lists Maine license number 013640, 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 John Joseph Parker, MD prescribe under Medicare Part D?
In 2024, John Joseph Parker, MD had 67 Medicare Part D claims for 13 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.