JOHN R GRITTNER
NPI 1164734976
Dentist in St. Paul, MN
About John R Grittner NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN R GRITTNER (NPI 1164734976) is an individual dentist in St. Paul, Minnesota, licensed in Minnesota (D12799) and active in the NPI registry since July 2010. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
John R Grittner is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show John Grittner 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 55107 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.
ST. PAUL, MN 55107
ST. PAUL, MN 55107
ST. PAUL, MN 55107
ST. PAUL, MN 55107
ST. PAUL, MN 55107
ST. PAUL, MN 55107
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 John Grittner's NPI number?
The NPI number for John Grittner is 1164734976. It was assigned to this individual provider in the NPPES registry on July 9, 2010.
Where is John Grittner located?
John Grittner practices at 205 S Wabasha St, St. Paul, MN 55107. The listed phone number is (651) 293-8300.
What is John Grittner's specialty?
The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.
Is John Grittner enrolled in Medicare?
Yes. John Grittner is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for John Grittner's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Grittner 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 John Grittner's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Grittner accept?
Health plans from Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas list John Grittner as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for John Grittner was last updated on October 16, 2015. 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.
# John R Grittner · NPI 1164734976
Dentist provider in St. Paul, Minnesota. Individual provider, active in the CMS NPPES registry since July 9, 2010.
## Identity
- **NPI:** 1164734976 (Entity type: Individual)
- **Enumerated:** July 9, 2010
- **Primary specialty:** Dentist · taxonomy 122300000X
- **State license:** D12799 (Minnesota)
- **Sole proprietor:** No
## Practice location
- **Address:** 205 S WABASHA ST, St. Paul, MN 55107-1805
- **Phone:** (651) 293-8300 · **Fax:** (651) 293-8130
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **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:** October 16, 2015
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Source: [NPI Profile](https://npiprofile.com/npi/1164734976) · Data from the CMS NPPES public registry.