Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Michael Blake Stuart, RADT

Addiction (Substance Use Disorder) Counselor in Oak Park, CA · enumerated 2020.

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

National Provider Identifier

1538778865

Verified

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Registry record

Entity type Individual (Type 1)

Name Mr. Michael Blake Stuart

Credential RADT

Sex Male

Practice address Oak Park, CA, 91377

Phone (818) 661-9729

Enumeration date Jul 22, 2020

Last updated in NPPES Jul 22, 2020

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License R1369011019 (CA) 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

Is NPI 1538778865 active?

Yes, as of the latest NPPES snapshot, NPI 1538778865 is active (record last updated 2020-07-22).

How do I verify Michael Stuart's NPI record?

Cross-check NPI 1538778865 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-07-22.