DR. SARAH M FRENNING MD
NPI 1043345887
Pediatrics in Duluth, MN
About Dr. Sarah M Frenning Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SARAH M FRENNING MD (NPI 1043345887) is an individual pediatrics provider in Duluth, Minnesota, licensed in Minnesota (19507) and active in the NPI registry since February 2007. She is enrolled in Medicare PECOS and maintains a secondary practice location in St Paul.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
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)
Dr. Sarah M Frenning Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Sarah Frenning reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Duluth, MN 55805
- Reassigned Medicare billing, Minnesota enrollment
- 1,460 clinicians in this Medicare group
Walker, MN 56484
- Reassigned Medicare billing, Minnesota enrollment
- Medicare enrollment name: St Marys Regional Health Center
- 254 clinicians in this Medicare group
Blaine, MN 55449
- 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 55805 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.
DULUTH, MN 55805
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 Sarah Frenning's NPI number?
The NPI number for Sarah Frenning is 1043345887. It was assigned to this individual provider in the NPPES registry on February 22, 2007.
Where is Sarah Frenning located?
Sarah Frenning practices at 420 E 1st St, Duluth, MN 55805. The listed phone number is (218) 786-8364.
What is Sarah Frenning's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Sarah Frenning enrolled in Medicare?
Yes. Sarah Frenning is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Sarah Frenning's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sarah Frenning reassigns Medicare benefits to 3 organizations: The Duluth Clinic, Ltd (Duluth, MN), St Mary's Regional Health Center (Walker, MN) and Group Health, Inc. (Blaine, 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 Sarah Frenning's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sarah Frenning accept?
Health plans from HealthPartners and Security Health Plan list Sarah Frenning 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 Sarah Frenning was last updated on January 31, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Dr. Sarah M Frenning, MD · NPI 1043345887
Pediatrics physician in Duluth, Minnesota. Individual provider, active in the CMS NPPES registry since February 22, 2007.
## Identity
- **NPI:** 1043345887 (Entity type: Individual)
- **Enumerated:** February 22, 2007
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** 19507 (Minnesota)
- **Sole proprietor:** No
## Practice location
- **Address:** 420 E 1ST ST, Duluth, MN 55805-1901
- **Phone:** (218) 786-8364
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): The Duluth Clinic, Ltd (NPI 1245278209, Duluth, MN); St Mary's Regional Health Center (NPI 1558607408, Walker, MN); Group Health, Inc. (NPI 1699829697, Blaine, MN) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 31, 2022
- **Other identifiers:** Medicaid 1480271 (ND)
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Source: [NPI Profile](https://npiprofile.com/npi/1043345887) · Data from the CMS NPPES public registry.