Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jacquelyn Margaret Mayowski, MS, LLPC

Mental Health Counselor in South Lyon, MI · enumerated 2011.

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

National Provider Identifier

1376827634

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Registry record

Entity type Individual (Type 1)

Name Jacquelyn Margaret Mayowski

Credential MS, LLPC

Sex Female

Practice address 125 W Lake St, South Lyon, MI, 48178

Phone (248) 613-1261

Fax (248) 671-3446

Enumeration date Oct 5, 2011

Last updated in NPPES May 17, 2023

Taxonomy & licenses

103K00000X Behavior Analyst Behavioral Health & Social Service Providers Secondary

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 6401012620 (MI) Primary

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

How do I verify Jacquelyn Mayowski's NPI record?

Cross-check NPI 1376827634 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1376827634 active?

Yes, as of the latest NPPES snapshot, NPI 1376827634 is active (record last updated 2023-05-17).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-05-17.