ERIK K ST LOUIS MD
NPI 1922090851
Psychiatry & Neurology - Neurology in Rochester, MN
About Erik K St Louis Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ERIK K ST LOUIS MD (NPI 1922090851) is an individual neurology provider in Rochester, Minnesota, licensed in Minnesota (37540) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with Mayo Clinic Hospital Rochester, and maintains a secondary practice location in La Crosse.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 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
Erik K St Louis 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
8Medicare enrollment records show Erik St Louis reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Rochester, MN 55905
- Reassigned Medicare billing, Minnesota enrollment
- 6,534 clinicians in this Medicare group
Lake City, MN 55041
- Reassigned Medicare billing, Minnesota enrollment
- 819 clinicians in this Medicare group
Red Wing, MN 55066
- Reassigned Medicare billing, Minnesota enrollment
- 1,571 clinicians in this Medicare group
Mabel, MN 55954
- Reassigned Medicare billing, Minnesota and Iowa enrollments
- Also billed through NPI 1750042032 (Iowa)
- 108 clinicians in this Medicare group
Waseca, MN 56093
- Reassigned Medicare billing, Minnesota enrollment
- 1,572 clinicians in this Medicare group
La Crosse, WI 54601
- Reassigned Medicare billing, Minnesota and Wisconsin enrollments
- 330 clinicians in this Medicare group
Menomonie, WI 54751
- Reassigned Medicare billing, Wisconsin enrollment
- 1,248 clinicians in this Medicare group
Fairmont, MN 56031
- Reassigned Medicare billing, Minnesota enrollment
- 806 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 7
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mayo Clinic Hospital Rochester
Acute Care Hospitals · Rochester, MNMayo Clinic Health System-Franciscan Medical Center Inc
Acute Care Hospitals · La Crosse, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 55905 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 13
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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ROCHESTER, MN 55905
ROCHESTER, MN 55905
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 Erik St Louis's NPI number?
The NPI number for Erik St Louis is 1922090851. It was assigned to this individual provider in the NPPES registry on August 17, 2005.
Where is Erik St Louis located?
Erik St Louis practices at 200 1st St SW, Rochester, MN 55905. The listed phone number is (507) 284-2511.
What is Erik St Louis's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Erik St Louis enrolled in Medicare?
Yes. Erik St Louis 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 Erik St Louis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Erik St Louis reassigns Medicare benefits to 8 organizations: Mayo Clinic (Rochester, MN), Mayo Clinic Health System-Lake City (Lake City, MN), Mayo Clinic Health System-Southeast Minnesota Region (Red Wing, MN), Winneshiek Medical Center (Mabel, MN), Mayo Clinic Health System-Southwest Minnesota Region (Waseca, MN) and 3 more organizations, listed in the Medicare section above. 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 Erik St Louis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Erik St Louis accept?
Health plans from Oscar Insurance Company, Sanford Health Plan and Wellmark Health Plan of Iowa, Inc. list Erik St Louis 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 Erik St Louis affiliated with any hospitals?
According to CMS data, Erik St Louis is affiliated with Mayo Clinic Hospital Rochester and Mayo Clinic Health System-Franciscan Medical Center Inc.
When was this NPI record last updated?
The NPPES record for Erik St Louis was last updated on August 20, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Erik K St Louis, MD · NPI 1922090851
Neurology physician in Rochester, Minnesota. Individual provider, active in the CMS NPPES registry since August 17, 2005.
## Identity
- **NPI:** 1922090851 (Entity type: Individual)
- **Enumerated:** August 17, 2005
- **Primary specialty:** Psychiatry & Neurology - Neurology · taxonomy 2084N0400X
- **State license:** 37540 (Minnesota)
- **Sole proprietor:** No
## Practice location
- **Address:** 200 1ST ST SW, Rochester, MN 55905-0001
- **Phone:** (507) 284-2511
## 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:** 8 organizations under Medicare reassignment (form CMS-855R): Mayo Clinic (NPI 1114343860, Rochester, MN); Mayo Clinic Health System-Lake City (NPI 1164463659, Lake City, MN); Mayo Clinic Health System-Southeast Minnesota Region (NPI 1114453883, Red Wing, MN); Winneshiek Medical Center (NPI 1093857393, Mabel, MN); Mayo Clinic Health System-Southwest Minnesota Region (NPI 1518494251, Waseca, MN); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2008
## Record status
- **NPPES last updated:** August 20, 2020
---
Source: [NPI Profile](https://npiprofile.com/npi/1922090851) · Data from the CMS NPPES public registry.