Thomas Rieter Greenwood, DO
Hospitalist Physician · Duluth, MN
Thomas Rieter Greenwood, DO is a hospitalist physician with a practice address in Duluth, Minnesota, and NPI 1063941656, issued on Jun 7, 2017. Check the license (Minnesota 72597, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Thomas Rieter Greenwood
- Credential
- DO
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 72597 MN
Self-reported in NPPES; status is on the state search - Practice location
- 400 E 3RD St, Duluth, MN 55805
- Phone
- (218) 786-8364
- Enumerated
- Jun 7, 2017
- Record last updated
- May 23, 2025
- Medicaid ID
- 2135784 WA
- Medicare enrollment
- Enrolled (PECOS I20221110000880); accepts Medicare assignment
- Medical or professional school
- Pacific Nw Un Of Hs, Col Of Osteopathic Medicine, 2019
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 401 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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- Olubisi Akinseloyin, MDHospitalist Physician1619309010
- Glenn Albin, M.DCardiovascular Disease Physician1902851116
- David AlexanderDiagnostic Radiology Physician1932135936
Verify Thomas Rieter Greenwood in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 72597Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6% fewer Medicare Part D claims than the average hospitalist physician in 2024
488 Medicare Part D claims for 149 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 28 claims were for opioids.
Most prescribed
- Pantoprazole Sodium22 claims
- Prednisone18 claims
- Atorvastatin Calcium17 claims
- Levothyroxine Sodium16 claims
- Oxycodone Hcl16 claims
- Lisinopril14 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.
Bills Medicare through one group practice
- The Duluth Clinic LtdDuluth, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thomas Rieter Greenwood among 401 hospitalist physician records in Minnesota
Thomas Rieter Greenwood, DO is one of 401 hospitalist physician records with a practice address in Minnesota. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 71% of them.
- NPI issued2017 · 71% of these records are older, 23% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 88% of these records are
- Graduated2019 · median 2011 among the 354 with a school on file
- Record last updated2025 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
72 hospitalist physician records list a practice address in Duluth
They are 72 of the 4,084 NPPES records with a practice address in Duluth, and 401 hospitalist physician records in Minnesota.
All 401 in Minnesota → Every provider in Duluth → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Peter Aas, MDDuluth, MN 558051063455848
- Mir AliDuluth, MN 558051154357077
- James BerquistDuluth, MN 558051114942737
- Andrew Broadmoore, MDDuluth, MN 558051508828633
- Kuo Hau Chang, D.O.Duluth, MN 558051124077425
- John Degelau, MDDuluth, MN 558051063489375
- Dawn Drotar, MDDuluth, MN 558051891779120
- Kenneth Howard, MDDuluth, MN 558051477504314
Common questions
What is Thomas Rieter Greenwood, DO's NPI number?
Thomas Rieter Greenwood, DO's National Provider Identifier (NPI) is 1063941656, issued on Jun 7, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Rieter Greenwood, DO 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 Rieter Greenwood, DO's license?
NPPES lists Minnesota license number 72597, 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 Rieter Greenwood, DO prescribe under Medicare Part D?
In 2024, Thomas Rieter Greenwood, DO had 488 Medicare Part D claims for 149 beneficiaries; the average among hospitalist physician prescribers was 521. 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.