Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark A Vriesman, MSW

Mental Health Counselor in Muskegon, MI · enumerated 2006.

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

National Provider Identifier

1669532099

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Registry record

Entity type Individual (Type 1)

Name Mark A Vriesman

Credential MSW

Sex Male

Practice address 1095 3rd St, Suite 125, Muskegon, MI, 49441

Phone (231) 726-4735

Fax (231) 722-0789

Enumeration date Dec 8, 2006

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers Secondary

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers Primary

Other identifiers

Identifier	Type	State	Issuer
1712452	Medicaid	MI	-

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

Where does Mark Vriesman practice?

The practice location on file with NPPES is in Muskegon, MI. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Mark Vriesman?

The National Provider Identifier (NPI) for Mark Vriesman is 1669532099, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.