Quick answers
- Where does Derek A. Sundby see patients?
- Medicare's clinician data lists 2 practice locations, including Park River, ND and Grafton, ND. Call before your visit to confirm the address.
- What is Derek A. Sundby's specialty?
- Medicare lists Chiropractic as the primary specialty.
- Does Derek A. Sundby accept Medicare assignment?
- Yes. Medicare's clinician data says Derek A. Sundby 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 Derek A. Sundby?
- (701) 352-0400, as listed in official Medicare / NPI Registry data.
- What is Derek A. Sundby's NPI number?
- 1972079085. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Derek A. Sundby is enrolled with Medicare (CMS data updated 2026-10-02).
- 424 Briggs Ave SPark River, ND 58270 (701) 352‑0400
- 808 W 12th StGrafton, ND 58237 (701) 352‑0400
Group practices
Medicare enrollment lists Derek A. Sundby as a member of this group (CMS data updated 2026-10-02).
- Grafton Chiropractic Clinic PC4 clinicians in the group
Specialties
- Chiropracticprimary
Other chiropractors in Park River
Clinicians with the same Medicare primary specialty in Park River, ND — not a recommendation.
Clinician information
| Credential | CH |
|---|---|
| Medical school | Northwestern College Of Chiropractic |
| Graduation year | 2018 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1972079085 |
| 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
- 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