RICHARD GERARD MAHR MD
NPI 1851363634
Internal Medicine in Saint Paul, MN
About Richard Gerard Mahr Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RICHARD GERARD MAHR MD (NPI 1851363634) is an individual internal medicine provider in Saint Paul, Minnesota, licensed in Minnesota (36096) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Richard Gerard Mahr Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Richard Mahr reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
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 Richard Mahr's NPI number?
The NPI number for Richard Mahr is 1851363634. It was assigned to this individual provider in the NPPES registry on February 6, 2006.
Where is Richard Mahr located?
Richard Mahr practices at 640 Jackson St Mc 11109E, Saint Paul, MN 55101. The listed phone number is (651) 254-9545.
What is Richard Mahr's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Richard Mahr enrolled in Medicare?
Yes. Richard Mahr is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Richard Mahr's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Richard Mahr reassigns Medicare benefits to Group Health, Inc. (Saint Paul, MN). The 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 Richard Mahr'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 Richard Mahr was last updated on December 12, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 years 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.
# Richard Gerard Mahr, MD · NPI 1851363634
Internal Medicine physician in Saint Paul, Minnesota. Individual provider, active in the CMS NPPES registry since February 6, 2006.
## Identity
- **NPI:** 1851363634 (Entity type: Individual)
- **Enumerated:** February 6, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 36096 (Minnesota)
- **Sole proprietor:** No
## Practice location
- **Address:** 640 JACKSON ST, MC 11109E, Saint Paul, MN 55101-2502
- **Phone:** (651) 254-9545 · **Fax:** (651) 254-3662
## 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:** Group Health, Inc. (NPI 1801941943, Saint Paul, MN), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 12, 2014
- **Other identifiers:** Medicare UPIN F30057; Medicaid 932065200 (MN)
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Source: [NPI Profile](https://npiprofile.com/npi/1851363634) · Data from the CMS NPPES public registry.