Quick answers
- Which hospitals does Mark W. Erhard work at?
- Medicare's official clinician data lists Mark W. Erhard at 5 hospitals: Aspirus Ironwood Hospital, Aspirus Lake View Hospital, Community Memorial Hospital, Range Regional Health Services and St Lukes Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark W. Erhard see patients?
- Medicare's clinician data lists 7 practice locations, including Duluth, MN, Two Harbors, MN and Moose Lake, MN. Call before your visit to confirm the address.
- What is Mark W. Erhard's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does Mark W. Erhard accept Medicare assignment?
- Yes. Medicare's clinician data says Mark W. Erhard 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.
- What is the phone number for Mark W. Erhard?
- (218) 279-6230, as listed in official Medicare / NPI Registry data.
- What is Mark W. Erhard's NPI number?
- 1710962188. 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 W. Erhard works
Medicare's Facility Affiliation Data lists Mark W. Erhard at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Aspirus Ironwood HospitalIronwood, MI · Critical Access Hospital · CCN 231333
- Aspirus Lake View HospitalTwo Harbors, MN · Critical Access Hospital · CCN 241308
- Community Memorial HospitalCloquet, MN · Critical Access Hospital · CCN 241364
- Range Regional Health ServicesHibbing, MN · Acute Care Hospital · CCN 240040
- St Lukes HospitalDuluth, MN · Acute Care Hospital · CCN 240047
Practice locations
Addresses where Mark W. Erhard is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 1001 E Superior StDuluth, MN 55802 (218) 279‑6230
- 1001 E Superior St, Suite 201Duluth, MN 55802
- 1011 E 1st StDuluth, MN 55805 (218) 249‑7000
- 1015 E 1st StDuluth, MN 55805
- 325 11th AveTwo Harbors, MN 55616 (218) 834‑7300
Group practices
Medicare enrollment lists Mark W. Erhard as a member of this group (CMS data updated 2026-10-02).
- St. Luke's Hospital of Duluth405 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Minnesota →
Other cardiologists in Duluth
Clinicians with the same Medicare primary specialty in Duluth, MN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of South Florida College Of Medicine |
| Graduation year | 1986 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1710962188 |
| 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