Gregory Warren Burt, M.D.
Internal Medicine Physician · Portland, ME
Gregory Warren Burt, M.D. is an internal medicine physician with a practice address in Portland, Maine, and NPI 1942490925, issued on Jul 26, 2007. Check the license on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Gregory Warren Burt
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A55166 CA
Self-reported in NPPES; status is on the state search - Practice location
- 141 W Commercial St, Portland, ME 04102
- Phone
- (207) 623-8411
- Enumerated
- Jul 26, 2007
- Record last updated
- Apr 3, 2026
- Fax
- (207) 621-4859
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 597 in Maine → Look up another NPI →
Also registered at 141 W Commercial St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gregory Warren Burt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in MedicineCheck 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% more Medicare Part D claims than the average internal medicine physician in 2024
6,282 Medicare Part D claims for 433 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 146 claims were for opioids.
Most prescribed
- Atorvastatin Calcium386 claims
- Levothyroxine Sodium327 claims
- Amlodipine Besylate242 claims
- Lisinopril206 claims
- Simvastatin197 claims
- Metoprolol Succinate188 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 MIPS final score for 2023 (Medicare payment program): 97.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Gregory Warren Burt among 597 internal medicine physician records in Maine
Gregory Warren Burt, 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 2007, is newer than 56% of them.
- NPI issued2007 · 56% of these records are older, 39% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2026 · 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.
All 597 in Maine → Every provider in Portland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Elizabeth Ackerson, MDPortland, ME 041021912920117
- Ari Berman, MDPortland, ME 041021225015829
- Kirsten Berman, M.D.Portland, ME 041021043280431
- Nananda Col, MDPortland, ME 041021104870377
- Heidi Deblock, M.D.Portland, ME 041021922095892
- Kathleen Fairfield, M.D.Portland, ME 041021992744353
- Steven Hess, MDPortland, ME 041021427099498
- Rabee Kiwan, MDPortland, ME 041021992784938
Common questions
What is Gregory Warren Burt, M.D.'s NPI number?
Gregory Warren Burt, M.D.'s National Provider Identifier (NPI) is 1942490925, issued on Jul 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Warren Burt, M.D. located?
The NPPES record lists a practice address at 141 W Commercial St, Portland, ME, 04102. Phone: (207) 623-8411. Providers update this record themselves, so call before visiting.
How can I verify Gregory Warren Burt, M.D.'s license?
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 Gregory Warren Burt, M.D. prescribe under Medicare Part D?
In 2024, Gregory Warren Burt, M.D. had 6,282 Medicare Part D claims for 433 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Gregory Warren Burt, M.D.'s MIPS final score?
The 2023 MIPS final score is 97.1 of 100. 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.