NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Toonstra Psychological Services, PC

Mental Health Clinic/Center (Including Community Mental Health Center) in Grand Rapids, MN · enumerated 2007 · authorized official Martin Toonstra, Owner.

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

National Provider Identifier

1588850465

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Toonstra Psychological Services, PC
Practice address 107 Se 10th St, Unit 102, Grand Rapids, MN, 55744
Enumeration date Sep 24, 2007
Last updated in NPPES Sep 24, 2007

Taxonomy & classification

261QM0801X Mental Health Clinic/Center (Including Community Mental Health Center) Ambulatory Health Care Facilities · License LP3523 (MN) Primary

Authorized official

Name Martin Toonstra
Title Owner

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Who is the authorized official for Toonstra Psychological Services, PC?
NPPES lists Martin Toonstra (Owner) as the authorized official for this organization.
What is the NPI number for Toonstra Psychological Services, PC?
The NPI for Toonstra Psychological Services, PC is 1588850465, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-09-24.