Quick answers
- Does Nicholas A. Cook-Rostie accept Medicare assignment?
- Yes. Medicare's clinician data says Nicholas A. Cook-Rostie 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 Nicholas A. Cook-Rostie see?
- In 2024, CMS data shows 31 Original Medicare patients and 67 services for Nicholas A. Cook-Rostie. This counts Original Medicare only and measures volume, not quality.
- What is Nicholas A. Cook-Rostie's NPI number?
- 1386225720. 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 Nicholas A. Cook-Rostie, 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 | 31 |
|---|---|
| Services billed to Medicare | 67 |
| Different services or procedures | 12 |
| Participating Medicare provider | Yes |
| Average age of these patients | 68 |
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 cholesterol71%
- High blood pressure65%
- Arthritis61%
- Depression48%
- Anxiety45%
- Diabetes35%
Hospitals where Nicholas A. Cook-Rostie works
Medicare's Facility Affiliation Data lists Nicholas A. Cook-Rostie 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.
- Essentia Health DuluthDuluth, MN · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 240019
- Essentia Health Moose LakeMoose Lake, MN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 241350
- Essentia Health SandstoneSandstone, MN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 241309
- Essentia Health St Mary's Medical CenterDuluth, MN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 240002
- Essentia Health VirginiaVirginia, MN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 240084
Practice locations
Addresses where Nicholas A. Cook-Rostie is enrolled with Medicare (CMS data updated October 2, 2026).
- 1600 Miller Trunk Hwy, Bldg CDuluth, MN 55811 (218) 786‑5360
- 425 Elm St NSauk Centre, MN 56378
- 4572 County Rd, Suite 61Moose Lake, MN 55767 (218) 485‑2105
- 4855 W Arrowhead RdHermantown, MN 55811 (218) 786‑3540
- 730 E 34th StHibbing, MN 55746 (218) 262‑5225
Group practices
Medicare enrollment lists Nicholas A. Cook-Rostie as a member of these groups (CMS data updated October 2, 2026).
- The Duluth Clinic Ltd1,144 clinicians in the group
- Polinsky Medical Rehabilitation Center382 clinicians in the group
- CentraCare Health System - Sauk Centre29 clinicians in the group
- Essentia Health Moose Lake12 clinicians in the group
Specialties
- Emergency Medicineprimary
- Family Practicealso
Other emergency medicine doctors in Duluth
Clinicians with the same Medicare primary specialty in Duluth, MN — not a recommendation.
Other clinicians in The Duluth Clinic Ltd
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Minnesota Medical School |
| Graduation year | 2021 (5 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1386225720 |
| 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