Thomas C. Hattan, MD
Geriatric Medicine (Internal Medicine) Physician · Lewiston, ME
Thomas C. Hattan, MD is a geriatric medicine (internal medicine) physician with a practice address in Lewiston, Maine, and NPI 1598708315, issued on Jun 13, 2006. Check the license (Maine 017438, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Thomas C. Hattan
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- 017438 ME
Self-reported in NPPES; status is on the state search - Practice location
- 76 High St, Lewiston, ME 04240
- Phone
- (207) 795-2800
- Enumerated
- Jun 13, 2006
- Record last updated
- Oct 21, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (207) 795-2802
- Medicare enrollment
- Enrolled (PECOS I20070723000042); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 1999
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 27 in Maine → Look up another NPI →
Also registered at 76 High St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Deana Albert, N.P.Adult Health Nurse Practitioner1578543278
- Clare Alexander, MDFamily Medicine Physician1548676513
- Emanuelle AndrianopoulosFamily Medicine Physician1801738125
- Jesse Atwood, DOFamily Medicine Physician1497492417
- Stephanie Aung, MDFamily Medicine Physician1144450529
Verify Thomas C. Hattan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license 017438Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7.6 times the Medicare Part D claims of the average geriatric medicine (internal medicine) physician in 2024
32,456 Medicare Part D claims for 571 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 495 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,582 claims
- Sertraline Hcl1,581 claims
- Levothyroxine Sodium1,239 claims
- Furosemide1,238 claims
- Trazodone Hcl1,062 claims
- Amlodipine Besylate1,049 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 84 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
2 hospitals and group practices
- Central Maine Medical CenterLewiston, ME · Acute Care Hospitals4 of 5 stars
- Rumford Community Family Health Center Inc.Rumford, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Thomas C. Hattan among 27 geriatric medicine (internal medicine) physician records in Maine
Thomas C. Hattan, MD is one of 27 geriatric medicine (internal medicine) physician records with a practice address in Maine. 74% 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 0% of them.
- NPI issued2006 · 0% of these records are older, 44% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1999 · median 2001 among the 16 with a school on file
- Record last updated2010 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Internal Medicine) Physician providers in Maine
There are 27 geriatric medicine (internal medicine) physician records in Maine.
All 27 in Maine → Every provider in Lewiston → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- George Morrissette, MDLewiston, ME 042401720022536
- Michael Isaac, MDTurner, ME 042821275782690
- Annette Beyea, D.O.Augusta, ME 043301164525341
- Izabela Lutostanska, M.D.Augusta, ME 043301578518106
- Roger Renfrew, M.D.Augusta, ME 043301427075464
- Timothy Richardson, M.D.Augusta, ME 043301053354753
- Rebecca Spear, D.O.Augusta, ME 043301184043580
- Joann Wang, D.O.Augusta, ME 043301134369358
Common questions
What is Thomas C. Hattan, MD's NPI number?
Thomas C. Hattan, MD's National Provider Identifier (NPI) is 1598708315, issued on Jun 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas C. Hattan, MD located?
The NPPES record lists a practice address at 76 High St, Lewiston, ME, 04240. Phone: (207) 795-2800. Providers update this record themselves, so call before visiting.
How can I verify Thomas C. Hattan, MD's license?
NPPES lists Maine license number 017438, 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 Thomas C. Hattan, MD prescribe under Medicare Part D?
In 2024, Thomas C. Hattan, MD had 32,456 Medicare Part D claims for 571 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. Part D covers Medicare prescriptions only.
What is Thomas C. Hattan, MD's MIPS final score?
The 2023 MIPS final score is 84 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.