Quick answers
- Which hospitals does Mark R. Nielsen work at?
- Medicare's official clinician data lists Mark R. Nielsen at 3 hospitals: M Health Fairview Ridges Hospital, M Health Fairview Southdale Hospital and M Health Fairview University of MN Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark R. Nielsen see patients?
- Medicare's clinician data lists 6 practice locations, including Eagan, MN, Apple Valley, MN and Saint Paul, MN. Call before your visit to confirm the address.
- What is Mark R. Nielsen's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Mark R. Nielsen accept Medicare assignment?
- Yes. Medicare's clinician data says Mark R. Nielsen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Mark R. Nielsen offer telehealth?
- Medicare's clinician data says Mark R. Nielsen offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mark R. Nielsen?
- (651) 406-8860, as listed in official Medicare / NPI Registry data.
- What is Mark R. Nielsen's NPI number?
- 1609830843. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark R. Nielsen works
Medicare's Facility Affiliation Data lists Mark R. Nielsen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- M Health Fairview Ridges HospitalBurnsville, MN · Acute Care Hospital · CCN 240207
- M Health Fairview Southdale HospitalEdina, MN · Acute Care Hospital · CCN 240078
- M Health Fairview University of MN Medical CenterMinneapolis, MN · Acute Care Hospital · CCN 240080
Practice locations
Addresses where Mark R. Nielsen is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1440 Duckwood DrEagan, MN 55122 (651) 406‑8860
- 15650 Cedar AveApple Valley, MN 55124 (952) 997‑4100
- 1700 University Ave WSaint Paul, MN 55104
- 5200 Fairview BlvdWyoming, MN 55092 (651) 982‑7000
- 600 W 98th StBloomington, MN 55420
Group practices
Medicare enrollment lists Mark R. Nielsen as a member of this group (CMS data updated 2026-10-02).
- Fairview Clinics782 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Eagan
Clinicians with the same Medicare primary specialty in Eagan, MN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Minnesota Medical School |
| Graduation year | 1991 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1609830843 |
| 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 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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