Quick answers
- Does Morgan C. Althoen accept Medicare assignment?
- Yes. Medicare's clinician data says Morgan C. Althoen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Morgan C. Althoen see?
- In 2024, CMS data shows 566 Original Medicare patients and 1,036 services for Morgan C. Althoen. This counts Original Medicare only and measures volume, not quality.
- What is Morgan C. Althoen's NPI number?
- 1851304158. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Morgan C. Althoen, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 566 |
|---|---|
| Services billed to Medicare | 1,036 |
| Different services or procedures | 120 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Ultrasound study of arm and leg arteries (93922)106 services
- Ultrasound of both sides of head and neck blood flow (93880)88 services
- Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)80 services
- Ct scan of blood vessels of chest with contrast (71275)57 services
- Ultrasound study of one arm or leg veins with compression and maneuvers (93971)43 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol70%
- Arthritis48%
- Ischemic heart disease38%
- Diabetes35%
- Chronic kidney disease29%
Hospitals where Morgan C. Althoen works
Medicare's Facility Affiliation Data lists Morgan C. Althoen at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Aspirus Lake View HospitalTwo Harbors, MN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 241308
- Community Memorial HospitalCloquet, MN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 241364
- Essentia Health DuluthDuluth, MN · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 240019
- St Lukes HospitalDuluth, MN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 240047
Practice locations
Addresses where Morgan C. Althoen is enrolled with Medicare (CMS data updated October 2, 2026).
- 915 E 1st StDuluth, MN 55805 (218) 249‑5555
Group practices
Medicare enrollment lists Morgan C. Althoen as a member of this group (CMS data updated October 2, 2026).
- St. Luke's Hospital of Duluth405 clinicians in the group
Specialties
- Interventional Radiologyprimary
- Diagnostic Radiologyalso
Other interventional radiologists in Duluth
Clinicians with the same Medicare primary specialty in Duluth, MN — not a recommendation.
Other clinicians in St. Luke's Hospital of Duluth
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Michigan Medical School |
| Graduation year | 1998 (28 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1851304158 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians