DR. JOHN MATTHEW HOLST D.O.
NPI 1669442406
Emergency Medicine in Duluth, MN
About Dr. John Matthew Holst D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN MATTHEW HOLST D.O. (NPI 1669442406) is an individual emergency medicine provider in Duluth, Minnesota, licensed in Minnesota (56179) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Essentia Health St Mary's Medical Center, and is a graduate of Des Moines University Of Osteopathic Medicine And Health Sciences (2004).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 3
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
Dr. John Matthew Holst D.o. 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
7Medicare enrollment records show John Holst reassigns Medicare billing to 7 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
- Medicare enrollment name: St Marys Medical Center
- 179 clinicians in this Medicare group
Superior, WI 54880
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: St Marys Hospital Of Superior
- 381 clinicians in this Medicare group
Moose Lake, MN 55767
- Reassigned Medicare billing, Minnesota enrollment
- 213 clinicians in this Medicare group
Aurora, MN 55705
- Reassigned Medicare billing, Minnesota enrollment
- 136 clinicians in this Medicare group
Virginia, MN 55792
- Reassigned Medicare billing, Minnesota enrollment
- 171 clinicians in this Medicare group
Sandstone, MN 55072
- Reassigned Medicare billing, Minnesota enrollment
- 159 clinicians in this Medicare group
Grand Rapids, MN 55744
- Reassigned Medicare billing, Minnesota enrollment
- 171 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 3
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 4
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, MNEssentia Health Moose Lake
Critical Access Hospitals · Moose Lake, MNSt Marys Hospital Superior
Critical Access Hospitals · Superior, WIPhysician 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
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 John Holst's NPI number?
The NPI number for John Holst is 1669442406. It was assigned to this individual provider in the NPPES registry on January 24, 2006.
Where is John Holst located?
John Holst practices at 407 E 3rd St Essentia Health St. Mary's Medical Center, Duluth, MN 55805. The listed phone number is (218) 786-4357.
What is John Holst's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is John Holst enrolled in Medicare?
Yes. John Holst 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 John Holst's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Holst reassigns Medicare benefits to 7 organizations: St. Mary's Medical Center (Duluth, MN), St. Mary's Hospital Of Superior (Superior, WI), Essentia Health Moose Lake (Moose Lake, MN), Northern Pines Medical Center (Aurora, MN), Essentia Health Virginia, LLC (Virginia, MN) and 2 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 John Holst's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is John Holst affiliated with any hospitals?
According to CMS data, John Holst is affiliated with Essentia Health St Mary's Medical Center, Essentia Health Duluth, Essentia Health Moose Lake and St Marys Hospital Superior.
When was this NPI record last updated?
The NPPES record for John Holst was last updated on January 14, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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. John Matthew Holst, D.O. · NPI 1669442406
Emergency Medicine physician in Duluth, Minnesota. Individual provider, active in the CMS NPPES registry since January 24, 2006.
## Identity
- **NPI:** 1669442406 (Entity type: Individual)
- **Enumerated:** January 24, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 56179 (Minnesota)
- **Sole proprietor:** No
## Practice location
- **Address:** 407 E 3RD ST, ESSENTIA HEALTH ST. MARY'S MEDICAL CENTER, Duluth, MN 55805-1950
- **Phone:** (218) 786-4357
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): St. Mary's Medical Center (NPI 1013933936, Duluth, MN); St. Mary's Hospital Of Superior (NPI 1083657886, Superior, WI); Essentia Health Moose Lake (NPI 1154959880, Moose Lake, MN); Northern Pines Medical Center (NPI 1881954147, Aurora, MN); Essentia Health Virginia, LLC (NPI 1083617120, Virginia, MN); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Des Moines University Of Osteopathic Medicine And Health Sciences, class of 2004
## Record status
- **NPPES last updated:** January 14, 2021
- **Other identifiers:** Medicaid 1669442406 (MI); Medicaid 1669442406 (MN); Medicaid 1669442406 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1669442406) · Data from the CMS NPPES public registry.