Quick answers
- Which hospitals does Ralph Dunnigan work at?
- Medicare's official clinician data lists Ralph Dunnigan at 4 hospitals: CHI St Alexius Health, CHI St Alexius Health Dickinson, Essentia Health and Sanford Medical Center Bismarck. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ralph Dunnigan see patients?
- Medicare's clinician data lists 1 practice location in Bismarck, ND. Call before your visit to confirm the address.
- What is Ralph Dunnigan's specialty?
- Medicare lists Neurology as the primary specialty.
- Does Ralph Dunnigan accept Medicare assignment?
- Medicare's clinician data says Ralph Dunnigan may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- Does Ralph Dunnigan offer telehealth?
- Medicare's clinician data says Ralph Dunnigan offers telehealth services. Ask the office which visits can be done by video or phone.
- What is Ralph Dunnigan's NPI number?
- 1932151586. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ralph Dunnigan works
Medicare's Facility Affiliation Data lists Ralph Dunnigan 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
- CHI St Alexius Health DickinsonDickinson, ND · Critical Access Hospital · CCN 351336
- Essentia HealthFargo, ND · Acute Care Hospital · CCN 350070
- Sanford Medical Center BismarckBismarck, ND · Acute Care Hospital · CCN 350015
Practice locations
Addresses where Ralph Dunnigan is enrolled with Medicare (CMS data updated 2026-10-02).
- 401 N 9th StBismarck, ND 58501
Specialties
- Neurologyprimary
Other neurologists in Bismarck
Clinicians with the same Medicare primary specialty in Bismarck, ND — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of North Dakota School Of Medicine |
| Graduation year | 1989 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1932151586 |
| 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