JEFFREY D LARSEN MD
NPI 1104819622
Internal Medicine in River Falls, WI
About Jeffrey D Larsen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JEFFREY D LARSEN MD (NPI 1104819622) is an individual internal medicine provider in River Falls, Wisconsin, licensed in Wisconsin (37621) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with Allina United Hospital, and maintains a secondary practice location in Saint Paul.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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 and accepts Medicare assignment
Jeffrey D Larsen 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 Reassignments
4Medicare enrollment records show Jeffrey Larsen reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
River Falls, WI 54022
- Reassigned Medicare billing, Wisconsin enrollment
- 32 clinicians in this Medicare group
River Falls, WI 54022
- Reassigned Medicare billing, Wisconsin enrollment
- 530 clinicians in this Medicare group
Hudson, WI 54016
- Reassigned Medicare billing, Wisconsin enrollment
- 29 clinicians in this Medicare group
Saint Paul, MN 55104
- Reassigned Medicare billing, Wisconsin enrollment
- 7 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.
Areas of Expertise CMS Part B claims 26
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Allina United Hospital
Acute Care Hospitals · Saint Paul, MNM Health Fairview University Of Mn
Acute Care Hospitals · Minneapolis, MNM Health Fairview St John's Hospital
Acute Care Hospitals · Maplewood, MNM Health Fairview Woodwinds Hospital
Acute Care Hospitals · Woodbury, MNRiver Falls Area Hospital
Critical Access Hospitals · River Falls, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54022 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 21
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 16
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 Jeffrey Larsen's NPI number?
The NPI number for Jeffrey Larsen is 1104819622. It was assigned to this individual provider in the NPPES registry on August 30, 2005. The provider is also known as Jeff D Larsen MD.
Where is Jeffrey Larsen located?
Jeffrey Larsen practices at 319 S Main St, River Falls, WI 54022. The listed phone number is (715) 425-6701.
What is Jeffrey Larsen's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Jeffrey Larsen enrolled in Medicare?
Yes. Jeffrey Larsen 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 organizations bill Medicare for Jeffrey Larsen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jeffrey Larsen reassigns Medicare benefits to 4 organizations: Fairview Clinics (River Falls, WI), Allina Health System (River Falls, WI), Fairview Express Care (Hudson, WI) and Fairview Specialty Services (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 Jeffrey Larsen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jeffrey Larsen accept?
Health plans from Anthem Blue Cross and Blue Shield, HealthPartners, Sanford Health Plan and Security Health Plan list Jeffrey Larsen 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.
Is Jeffrey Larsen affiliated with any hospitals?
According to CMS data, Jeffrey Larsen is affiliated with Allina United Hospital, M Health Fairview University Of Mn, M Health Fairview St John's Hospital, M Health Fairview Woodwinds Hospital and River Falls Area Hospital.
When was this NPI record last updated?
The NPPES record for Jeffrey Larsen was last updated on September 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 46 days 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.