Quick answers
- Does Kevin P. Riess accept Medicare assignment?
- Yes. Medicare's clinician data says Kevin P. Riess 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 Kevin P. Riess see?
- In 2024, CMS data shows 97 Original Medicare patients and 199 services for Kevin P. Riess. This counts Original Medicare only and measures volume, not quality.
- What is Kevin P. Riess's NPI number?
- 1083871586. 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 Kevin P. Riess, 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 | 97 |
|---|---|
| Services billed to Medicare | 199 |
| Different services or procedures | 55 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)16 services
- Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)15 services
- Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)14 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 cholesterol67%
- Arthritis52%
- Diabetes31%
- Ischemic heart disease29%
- Chronic kidney disease26%
Hospitals where Kevin P. Riess works
Medicare's Facility Affiliation Data lists Kevin P. Riess 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 Deer RiverDeer River, MN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 241360
- Essentia Health Northern Pines Medical CenterAurora, MN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 241340
- 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
- Rainy Lake Medical CenterInternational Falls, MN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 241322
Practice locations
Addresses where Kevin P. Riess is enrolled with Medicare (CMS data updated October 2, 2026).
- 1542 Golf Course Rd, Suite 204Grand Rapids, MN 55744 (218) 999‑7000
- 5211 Hwy 110Aurora, MN 55705
Group practices
Medicare enrollment lists Kevin P. Riess as a member of these groups (CMS data updated October 2, 2026).
- The Duluth Clinic Ltd1,144 clinicians in the group
- Northern Pines Medical Center38 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Grand Rapids
Clinicians with the same Medicare primary specialty in Grand Rapids, 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, Duluth School Of Medicine |
| Graduation year | 2003 (23 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1083871586 |
| 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