Grant Peter Simonson, MD
Internal Medicine Physician · Saint Paul, MN
Grant Peter Simonson, MD is an internal medicine physician with a practice address in Saint Paul, Minnesota, and NPI 1942996525, issued on Apr 17, 2023. Check the license (Minnesota 81951, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Grant Peter Simonson
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 81951 MN
Self-reported in NPPES; status is on the state search - Practice location
- 640 Jackson St, Saint Paul, MN 55101
- Phone
- (952) 388-8601
- Enumerated
- Apr 17, 2023
- Record last updated
- Jul 1, 2026
- Medicare enrollment
- Enrolled (PECOS I20260527002167); may accept Medicare assignment
- Medical or professional school
- University Of Minnesota Medical School, 2023
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,632 in Minnesota → Look up another NPI →
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Verify Grant Peter Simonson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 81951Check 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% fewer Medicare Part D claims than the average internal medicine physician in 2024
59 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Gabapentin12 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.
Grant Peter Simonson among 2,632 internal medicine physician records in Minnesota
Grant Peter Simonson, MD is one of 2,632 internal medicine physician records with a practice address in Minnesota. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 91% of them.
- NPI issued2023 · 91% of these records are older, 7% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2023 · median 2008 among the 1,700 with a school on file
- Record last updated2026 · 57% 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 Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
254 internal medicine physician records list a practice address in Saint Paul
They are 254 of the 10,084 NPPES records with a practice address in Saint Paul, and 2,632 internal medicine physician records in Minnesota.
All 2,632 in Minnesota → Every provider in Saint Paul → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Amy Barger, MDSt Paul, MN 551011225009681
- Mark Erpelding, MDSt Paul, MN 551011659345445
- Shaun Frost, MDSaint Paul, MN 551011982677308
- Mohamed Hagi Aden, MDSt Paul, MN 551011093786469
- Richard Hilger, MDSaint Paul, MN 551011164493516
- Burke Kealey, MDSaint Paul, MN 551011154395010
- Richard Mahr, MDSaint Paul, MN 551011851363634
- Karen Moeller, MDSaint Paul, MN 551011679545453
Common questions
What is Grant Peter Simonson, MD's NPI number?
Grant Peter Simonson, MD's National Provider Identifier (NPI) is 1942996525, issued on Apr 17, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Grant Peter Simonson, MD located?
The NPPES record lists a practice address at 640 Jackson St, Saint Paul, MN, 55101. Phone: (952) 388-8601. Providers update this record themselves, so call before visiting.
How can I verify Grant Peter Simonson, MD's license?
NPPES lists Minnesota license number 81951, 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 Grant Peter Simonson, MD prescribe under Medicare Part D?
In 2024, Grant Peter Simonson, MD had 59 Medicare Part D claims; 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.