Thomas G. Malloy, M.D.
Gastroenterology Physician · Duluth, MN
Thomas G. Malloy, M.D. is a gastroenterology physician with a practice address in Duluth, Minnesota, and NPI 1285696161, issued on Apr 5, 2006. Check the license (Minnesota 107458, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Thomas G. Malloy
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 107458 MN
31007 WI
Self-reported in NPPES; status is on the state search - Practice location
- 400 E 3RD St, Duluth, MN 55805
- Phone
- (218) 786-8364
- Enumerated
- Apr 5, 2006
- Record last updated
- May 6, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (218) 786-8364
- Medicaid ID
- 31598000 WI
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 457 in Minnesota → Look up another NPI →
Also registered at 400 E 3RD St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Glenn Albin, M.DCardiovascular Disease Physician1902851116
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Verify Thomas G. Malloy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 107458Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average gastroenterology physician in 2024
42 Medicare Part D claims for 39 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims.
Most prescribed
- Gavilyte-G16 claims
- Peg-3350 And Electrolytes11 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.
Thomas G. Malloy among 457 gastroenterology physician records in Minnesota
Thomas G. Malloy, M.D. is one of 457 gastroenterology physician records with a practice address in Minnesota. 81% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 55% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 73% of these records are
- Record last updated2014 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Minnesota
There are 457 gastroenterology physician records in Minnesota.
All 457 in Minnesota → Every provider in Duluth → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Waldo Avello, M.D.Duluth, MN 558051922057322
- Johan Bakken, MDDuluth, MN 558051093841843
- Daniel Cornett, MDDuluth, MN 558051548228992
- John DeutschDuluth, MN 558051477593549
- Mohannad Dugum, M.D.Duluth, MN 558051427313220
- Robert EricksonDuluth, MN 558051952342503
- Jonathan Gapp, M.D.Duluth, MN 558051760833875
- Max Miranda, M.D.Duluth, MN 558051225259567
Common questions
What is Thomas G. Malloy, M.D.'s NPI number?
Thomas G. Malloy, M.D.'s National Provider Identifier (NPI) is 1285696161, issued on Apr 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas G. Malloy, M.D. located?
The NPPES record lists a practice address at 400 E 3RD St, Duluth, MN, 55805. Phone: (218) 786-8364. Providers update this record themselves, so call before visiting.
How can I verify Thomas G. Malloy, M.D.'s license?
NPPES lists Minnesota license number 107458, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Thomas G. Malloy, M.D. prescribe under Medicare Part D?
In 2024, Thomas G. Malloy, M.D. had 42 Medicare Part D claims for 39 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.