Quick answers
- Where does Mary Berntson see patients?
- Medicare's clinician data lists 2 practice locations, including West Fargo, ND and Grand Forks, ND. Call before your visit to confirm the address.
- What is Mary Berntson's specialty?
- Medicare lists Occupational Therapist in Private Practice as the primary specialty.
- Does Mary Berntson accept Medicare assignment?
- Yes. Medicare's clinician data says Mary Berntson 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 Mary Berntson?
- (701) 234-4445, as listed in official Medicare / NPI Registry data.
- What is Mary Berntson's NPI number?
- 1639159338. 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 Mary Berntson is enrolled with Medicare (CMS data updated 2026-10-02).
- 1220 Sheyenne StWest Fargo, ND 58078 (701) 234‑4445
- 3035 Demers AveGrand Forks, ND 58201 (701) 746‑7521
Group practices
Medicare enrollment lists Mary Berntson as a member of this group (CMS data updated 2026-10-02).
- Sanford Medical Center Fargo1,225 clinicians in the group
Specialties
Find other clinicians: Occupational Therapist in Private Practice, North Dakota →
Other occupational therapists in West Fargo
Clinicians with the same Medicare primary specialty in West Fargo, ND — not a recommendation.
Clinician information
| Credential | OT |
|---|---|
| Medical school | University Of North Dakota School Of Medicine |
| Graduation year | 1977 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1639159338 |
| 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