NPI Portal NPI Lookup & Verification

Janet Lynn Blake

Janet Lynn Blake is a Addiction (Substance Use Disorder) Counselor provider (Counselor) practicing in Marquette, MI, registered in the NPPES registry with NPI 1538812821 since 2022. Practices at Great Lakes Recovery Center (listed at the same practice address in NPPES).

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NPI 1538812821
Entity type Individual (Type 1)
Name Janet Lynn Blake
Sex Female
Practice address 241 WRIGHT ST, Marquette, MI, 49855
Phone 9062289699
Enumeration date 2022-01-27
Last updated in NPPES 2022-06-03

Taxonomy & licenses

Taxonomy code Specialty Primary License State
171M00000X Case Manager/Care Coordinator Secondary
101YA0400X Addiction (Substance Use Disorder) Counselor Primary
Copy-ready billing details
Provider: Janet Blake
NPI: 1538812821
Taxonomy: 101YA0400X (Addiction (Substance Use Disorder) Counselor)
Address: 241 WRIGHT ST, Marquette, MI, 49855

Other providers at this practice address

NPI Name Type Specialty Location
1013057934 Lisa Lennon Individual Professional Counselor Marquette, MI
1639569130 Rachel Holman Individual Addiction (Substance Use Disorder) Counselor Marquette, MI
1588020374 Great Lakes Recovery Center Organization Substance Use Disorder Rehabilitation Clinic/Center Marquette, MI
1669910139 Elizabeth Kent Individual Clinical Social Worker Marquette, MI
1205356268 Christine Swanson Individual Addiction (Substance Use Disorder) Counselor Marquette, MI
1669993978 Michael Fittante Individual Addiction (Substance Use Disorder) Counselor Marquette, MI
1821513433 Coralie Voce Individual Addiction (Substance Use Disorder) Counselor Marquette, MI
1740705391 Emily Masterson Individual Addiction (Substance Use Disorder) Counselor Marquette, MI

Verify this record

Cross-check NPI 1538812821 against the authoritative CMS record: view Janet Lynn Blake on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

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.
What specialty is Janet Blake?
Janet Blake is registered in NPPES with the primary taxonomy of Addiction (Substance Use Disorder) Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2022-06-03.