NPI Portal NPI Lookup & Verification

Jay El Tillman

Jay El Tillman is a Addiction (Substance Use Disorder) Counselor provider (Counselor) practicing in Clearlake, CA, registered in the NPPES registry with NPI 1154501047 since 2007.

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NPI 1154501047
Entity type Individual (Type 1)
Name Jay El Tillman
Sex Male
Practice address Clearlake, CA, 95422
Phone 7079953235
Enumeration date 2007-11-07
Last updated in NPPES 2007-11-07

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

Taxonomy & licenses

Taxonomy code Specialty Primary License State
101YA0400X Addiction (Substance Use Disorder) Counselor Primary RS2684 CA
Copy-ready billing details
Provider: Jay Tillman
NPI: 1154501047
Taxonomy: 101YA0400X (Addiction (Substance Use Disorder) Counselor)
Address: Clearlake, CA, 95422

Other providers at this practice address

NPI Name Type Specialty Location
1205069796 Judith Carroll Individual Addiction (Substance Use Disorder) Counselor Clearlake, CA
1457686339 Janet Thomson Individual Addiction (Substance Use Disorder) Counselor Clearlake, CA

Verify this record

Cross-check NPI 1154501047 against the authoritative CMS record: view Jay El Tillman 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 Jay Tillman?
Jay Tillman 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 2007-11-07.