NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

1 on 1 Professional Counseling Service Pllc

Professional Counselor in Detroit, MI · enumerated 2016 · authorized official Gwendolyn Hayes, Ma, Lpc, Ncc.

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

National Provider Identifier

1851740732

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name 1 on 1 Professional Counseling Service Pllc
Practice address 8965 Griggs St, Detroit, MI, 48204
Phone (313) 909-7080
Enumeration date Jun 10, 2016
Last updated in NPPES Jun 10, 2016

Taxonomy & classification

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 6401011643 (MI) Primary

Authorized official

Name Gwendolyn Hayes
Title Ma, Lpc, Ncc
Phone (313) 909-7080

Other identifiers

Identifier Type State Issuer
1952695504 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

What is the NPI number for 1 on 1 Professional Counseling Service Pllc?
The NPI for 1 on 1 Professional Counseling Service Pllc is 1851740732, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for 1 on 1 Professional Counseling Service Pllc?
NPPES lists Gwendolyn Hayes (Ma, Lpc, Ncc) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-06-10.