Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Mary Lynn Berntson, OTRL CHT

Occupational Therapist in Grand Forks, ND · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1639159338

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Registry record

Entity type Individual (Type 1)

Name Mrs. Mary Lynn Berntson

Credential OTRL CHT

Sex Female

Practice address 3035 Demers Ave, Grand Forks, ND, 58201

Phone (701) 746-7521

Enumeration date Jan 19, 2006

Last updated in NPPES Jul 1, 2024

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 100966 (MN) Secondary

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License AA522599 Secondary

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 25 (ND) Primary

Other identifiers

Identifier	Type	State	Issuer
24561	Other	-	NORIDIAN MUTUAL
341M0BE	Other	MN	BC/BS
24561	Other	-	BCBS ND
HP62219	Other	-	HEALTH PARTNERS
2605838	Other	-	UNITED HEALTH CARE
64-05705	Other	-	MEDICA
24780	Other	-	DEMERS LOCATION
54901	Medicaid	ND	-
201942600	Other	MN	MEDICAL ASSISTANCE
1042277	Other	-	PREFERRED ONE

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What specialty is Mary Berntson?

Mary Berntson is registered in NPPES with the primary taxonomy of Occupational Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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Gary Karlstad Specialist · Grand Forks, ND NPI 1457356099 Mark Sczepanski Ophthalmology Physician · Grand Forks, ND NPI 1295731040 Gerald Gaul Ophthalmology Physician · Grand Forks, ND NPI 1801893490 Valley Diagnostics Clinical Medical Laboratory · Grand Forks, ND NPI 1497726509 Valley Bone and Joint Clinic PC Orthopaedic Surgery Physician · Grand Forks, ND NPI 1033180153 David Schall Orthopaedic Surgery Physician · Grand Forks, ND NPI 1932170057 Robert Clayburgh Orthopaedic Surgery Physician · Grand Forks, ND NPI 1598736662 Joffrey Thompson Orthopaedic Surgery Physician · Grand Forks, ND NPI 1780655845

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-01.