NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Gateway Addictionology Services, Pllc

Substance Abuse Rehabilitation Facility in Mesa, AZ · enumerated 2016 · authorized official Brian Delisio, President/Ceo.

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

National Provider Identifier

1699221879

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Gateway Addictionology Services, Pllc
Other name <Unavail>
Practice address 4862 E. Baseline Road, Suite 108, Mesa, AZ, 85206
Phone (480) 981-2405
Fax (480) 981-2407
Enumeration date Aug 29, 2016
Last updated in NPPES Jun 21, 2018

Taxonomy & classification

207LA0401X Addiction Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License 43504 (AZ) Secondary
324500000X Substance Abuse Rehabilitation Facility Residential Treatment Facilities · License BH5407 (AZ) Primary

Authorized official

Name Brian Delisio
Title President/Ceo
Phone (480) 981-2405

Other identifiers

Identifier Type State Issuer
1699221879 Other AZ NPI

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

Who is the authorized official for Gateway Addictionology Services, Pllc?
NPPES lists Brian Delisio (President/Ceo) as the authorized official for this organization.
What is the NPI number for Gateway Addictionology Services, Pllc?
The NPI for Gateway Addictionology Services, Pllc is 1699221879, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-06-21.