Quick answers
- Which hospitals does Mark D. McCubbin work at?
- Medicare's official clinician data lists Mark D. McCubbin at 5 hospitals: CHI St Alexius Health, Columbus Regional Hospital, Marshfield Medical Center, Marshfield Medical Center - Neillsville and St Lukes Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark D. McCubbin see patients?
- Medicare's clinician data lists 4 practice locations, including Duluth, MN, Marshfield, WI and Columbus, IN. Call before your visit to confirm the address.
- What is Mark D. McCubbin's specialty?
- Medicare lists Nephrology as the primary specialty.
- Does Mark D. McCubbin accept Medicare assignment?
- Yes. Medicare's clinician data says Mark D. McCubbin 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 D. McCubbin?
- (218) 249-5203, as listed in official Medicare / NPI Registry data.
- What is Mark D. McCubbin's NPI number?
- 1831322932. 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 D. McCubbin works
Medicare's Facility Affiliation Data lists Mark D. McCubbin at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- CHI St Alexius HealthBismarck, ND · Acute Care Hospital · CCN 350002
- Columbus Regional HospitalColumbus, IN · Acute Care Hospital · CCN 150112
- Marshfield Medical CenterMarshfield, WI · Acute Care Hospital · CCN 520037
- Marshfield Medical Center - NeillsvilleNeillsville, WI · Critical Access Hospital · CCN 521323
- St Lukes HospitalDuluth, MN · Acute Care Hospital · CCN 240047
Practice locations
Addresses where Mark D. McCubbin is enrolled with Medicare (CMS data updated 2026-10-02).
- 1000 E 1st St, Suite 204Duluth, MN 55805 (218) 249‑5203
- 1000 N Oak AveMarshfield, WI 54449 (715) 387‑5511
- 2400 17th StColumbus, IN 47201 (812) 376‑5974
- 900 E Broadway AveBismarck, ND 58501 (701) 530‑7000
Group practices
Medicare enrollment lists Mark D. McCubbin as a member of these groups (CMS data updated 2026-10-02).
- MCHS Hospitals Inc1,197 clinicians in the group
- St. Luke's Hospital of Duluth405 clinicians in the group
- St Alexius Medical Center238 clinicians in the group
- Columbus Regional Health Physicians LLC211 clinicians in the group
Specialties
- Nephrologyprimary
Other nephrologists in Duluth
Clinicians with the same Medicare primary specialty in Duluth, MN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Wayne State University School Of Medicine |
| Graduation year | 2009 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1831322932 |
| 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