AMY MARIE LARSON MD
NPI 1003565292
Hospitalist in Duluth, MN
About Amy Marie Larson Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AMY MARIE LARSON MD (NPI 1003565292) is an individual hospitalist provider in Duluth, Minnesota, licensed in Minnesota (79833) and active in the NPI registry since March 2022. She is enrolled in Medicare PECOS, is affiliated with Essentia Health St Mary's Medical Center, and is a graduate of University Of Minnesota Medical School (2022).
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Amy Marie Larson Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Amy Larson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Duluth, MN 55805
- Reassigned Medicare billing, Minnesota enrollment
- 1,460 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Essentia Health St Mary's Medical Center
Acute Care Hospitals · Duluth, MNEssentia Health Duluth
Acute Care Hospitals · Duluth, MNPhysician 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.
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 Amy Larson's NPI number?
The NPI number for Amy Larson is 1003565292. It was assigned to this individual provider in the NPPES registry on March 23, 2022.
Where is Amy Larson located?
Amy Larson practices at 400 E 3rd St, Duluth, MN 55805. The listed phone number is (218) 786-8364.
What is Amy Larson's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Amy Larson enrolled in Medicare?
Yes. Amy Larson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Amy Larson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Amy Larson reassigns Medicare benefits to The Duluth Clinic, Ltd (Duluth, 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 Amy Larson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Amy Larson affiliated with any hospitals?
According to CMS data, Amy Larson is affiliated with Essentia Health St Mary's Medical Center and Essentia Health Duluth.
When was this NPI record last updated?
The NPPES record for Amy Larson was last updated on December 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Amy Marie Larson, MD · NPI 1003565292
Hospitalist physician in Duluth, Minnesota. Individual provider, active in the CMS NPPES registry since March 23, 2022.
## Identity
- **NPI:** 1003565292 (Entity type: Individual)
- **Enumerated:** March 23, 2022
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 79833 (Minnesota)
- **Sole proprietor:** No
## Practice location
- **Address:** 400 E 3RD ST, Duluth, MN 55805-1951
- **Phone:** (218) 786-8364
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** The Duluth Clinic, Ltd (NPI 1245278209, Duluth, MN), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Minnesota Medical School, class of 2022
## Record status
- **NPPES last updated:** December 2, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1003565292) · Data from the CMS NPPES public registry.