NPPES file of Aug 9, 2026

Robert J. Clinton, M.D.

Internal Medicine Physician · Portland, ME

Robert J. Clinton, M.D. is an internal medicine physician with a practice address in Portland, Maine, and NPI 1144267352, issued on May 31, 2006. Check the license (Maine 016239, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1144267352
Name
Robert J. Clinton
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
016239 ME
Self-reported in NPPES; status is on the state search
Practice location
144 State St, Portland, ME 04101
Phone
(207) 741-0504
Enumerated
May 31, 2006
Record last updated
Jun 10, 2008 (not updated in 18 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 144 State St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Francis Altman, M.D.Anesthesiology Physician1033138797
  2. David Andrews, M.D.Anesthesiology Physician1861429268
  3. Sandra Aubelangella, CNSPsychiatric/Mental Health Nurse Practitioner1306883129
  4. Mary Louise Bates, M.D.Anesthesiology Physician1427035666
  5. Normand Begin, CRNACertified Registered Nurse Anesthetist1235186412
  6. Denise BenedictPhysician Office Based Coding Specialist1487907978

Verify Robert J. Clinton in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
    Search for license 016239
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maine license search

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37% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,010 Medicare Part D claims for 76 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Robert Clinton2,010
  2. Specialty average3,176

Most prescribed

  1. Furosemide134 claims
  2. Levothyroxine Sodium119 claims
  3. Eliquis106 claims
  4. Potassium Chloride96 claims
  5. Atorvastatin Calcium85 claims
  6. Duloxetine Hcl65 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.

Robert J. Clinton among 597 internal medicine physician records in Maine

Robert J. Clinton, M.D. 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 updated2008 · 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).

145 internal medicine physician records list a practice address in Portland

They are 145 of the 6,022 NPPES records with a practice address in Portland, and 597 internal medicine physician records in Maine.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Joel Botler, MDPortland, ME 041011891764577
  2. Charles Cathcart, MDPortland, ME 041011861461535
  3. Wendy Cathcart, MDPortland, ME 041011295704971
  4. Thomas Claffey, MDPortland, ME 041011487623153
  5. Steven Dobieski, MDPortland, ME 041011942279617
  6. John Erickson, MDPortland, ME 041011043289713
  7. Debra Fuchs Ertman, MDPortland, ME 041011730158403
  8. Phyllidia Ku-Ruth, MDPortland, ME 041011497724108

Common questions

What is Robert J. Clinton, M.D.'s NPI number?

Robert J. Clinton, M.D.'s National Provider Identifier (NPI) is 1144267352, issued on May 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robert J. Clinton, M.D. located?

The NPPES record lists a practice address at 144 State St, Portland, ME, 04101. Phone: (207) 741-0504. Providers update this record themselves, so call before visiting.

How can I verify Robert J. Clinton, M.D.'s license?

NPPES lists Maine license number 016239, 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 Robert J. Clinton, M.D. prescribe under Medicare Part D?

In 2024, Robert J. Clinton, M.D. had 2,010 Medicare Part D claims for 76 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.