DR. GRANT PETER SIMONSON MD
NPI 1942996525
Internal Medicine in Saint Paul, MN
About Dr. Grant Peter Simonson Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GRANT PETER SIMONSON MD (NPI 1942996525) is an individual internal medicine provider in Saint Paul, Minnesota, licensed in Minnesota (81951) and active in the NPI registry since April 2023. He is enrolled in Medicare PECOS and is a graduate of University Of Minnesota Medical School (2023).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Grant Peter Simonson Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Grant Simonson reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Paul, MN 55101
- Reassigned Medicare billing, Minnesota enrollment
- 393 clinicians in this Medicare group
Saint Paul, MN 55107
- Reassigned Medicare billing, Minnesota enrollment
- 2,274 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 55101 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT PAUL, MN 55101
ST PAUL, MN 55101
ST PAUL, MN 55101
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Grant Simonson's NPI number?
The NPI number for Grant Simonson is 1942996525. It was assigned to this individual provider in the NPPES registry on April 17, 2023.
Where is Grant Simonson located?
Grant Simonson practices at 640 Jackson St, Saint Paul, MN 55101. The listed phone number is (952) 388-8601.
What is Grant Simonson's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Grant Simonson enrolled in Medicare?
Yes. Grant Simonson is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Grant Simonson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Grant Simonson reassigns Medicare benefits to 2 organizations: Regions Hospital (Saint Paul, MN) and Group Health, Inc. (Saint Paul, MN). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Grant Simonson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Grant Simonson was last updated on July 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Grant Peter Simonson, MD · NPI 1942996525
Internal Medicine physician in Saint Paul, Minnesota. Individual provider, active in the CMS NPPES registry since April 17, 2023.
## Identity
- **NPI:** 1942996525 (Entity type: Individual)
- **Enumerated:** April 17, 2023
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 81951 (Minnesota)
- **Sole proprietor:** No
## Practice location
- **Address:** 640 JACKSON ST, Saint Paul, MN 55101-2595
- **Phone:** (952) 388-8601
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Regions Hospital (NPI 1154359917, Saint Paul, MN); Group Health, Inc. (NPI 1801941943, Saint Paul, MN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Minnesota Medical School, class of 2023
## Record status
- **NPPES last updated:** July 1, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1942996525) · Data from the CMS NPPES public registry.