Gregory G. Montpetit, M.D.
Internal Medicine Physician · Roseville, MI
Gregory G. Montpetit, M.D. is an internal medicine physician with a practice address in Roseville, Michigan, and NPI 1699790626, issued on Jul 12, 2006. Check the license (Michigan GM048923, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Gregory G. Montpetit
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- GM048923 MI
Self-reported in NPPES; status is on the state search - Practice location
- 25599 Kelly RD, Roseville, MI 48066
- Phone
- (586) 445-2330
- Enumerated
- Jul 12, 2006
- Record last updated
- May 2, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (586) 445-2352
- Medicaid ID
- 2708570 MI
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 25599 Kelly RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michelle Kut, P.A.-CSurgical Physician Assistant1508916800
- Claude Lees, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1770572349
- Donald Moore, M.D.Internal Medicine Physician1427073469
Verify Gregory G. Montpetit in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license GM048923Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,048 Medicare Part D claims for 268 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Atorvastatin Calcium71 claims
- Levothyroxine Sodium69 claims
- Simvastatin65 claims
- Lisinopril51 claims
- Amlodipine Besylate47 claims
- Losartan Potassium41 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.
Gregory G. Montpetit among 5,735 internal medicine physician records in Michigan
Gregory G. Montpetit, M.D. is one of 5,735 internal medicine physician records with a practice address in Michigan. 79% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 60% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2011 · 54% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
18 internal medicine physician records list a practice address in Roseville
They are 18 of the 519 NPPES records with a practice address in Roseville, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Roseville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Basem Almasri, M.D.Roseville, MI 480661326040510
- Robert Aquino, DORoseville, MI 480661780671461
- Wahed Ishaqsei, M.D.Roseville, MI 480661063423176
- Sabah Mohammed, MDRoseville, MI 480661366484206
- Donald Moore, M.D.Roseville, MI 480661427073469
- Sudha Nannapaneni, MDRoseville, MI 480661720166713
- Osama Nunu, MDRoseville, MI 480661831191170
- Benjamin Osowa, M.D.Roseville, MI 480661053305110
Common questions
What is Gregory G. Montpetit, M.D.'s NPI number?
Gregory G. Montpetit, M.D.'s National Provider Identifier (NPI) is 1699790626, issued on Jul 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory G. Montpetit, M.D. located?
The NPPES record lists a practice address at 25599 Kelly RD, Roseville, MI, 48066. Phone: (586) 445-2330. Providers update this record themselves, so call before visiting.
How can I verify Gregory G. Montpetit, M.D.'s license?
NPPES lists Michigan license number GM048923, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory G. Montpetit, M.D. prescribe under Medicare Part D?
In 2024, Gregory G. Montpetit, M.D. had 1,048 Medicare Part D claims for 268 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.