NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Grant Weaver, MA, CDP, MAC, LMHC

Professional Counselor in San Tan Valley, AZ · enumerated 2007.

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

National Provider Identifier

1356482921

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mr. Grant Weaver
Credential MA, CDP, MAC, LMHC
Sex Male
Practice address 37200 N Gantzel Rd Ste 200, San Tan Valley, AZ, 85140
Fax (719) 623-0165
Enumeration date Feb 8, 2007
Last updated in NPPES Nov 10, 2025

Taxonomy & licenses

101YP1600X Pastoral Counselor Behavioral Health & Social Service Providers Secondary
101YP2500X Professional Counselor Behavioral Health & Social Service Providers Primary
106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License IMF-97 (GU) Secondary
101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 4294 (WA) Secondary
101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License CP00002621 (WA) Secondary
101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License LH00003794 (WA) Secondary

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

Where does Grant Weaver practice?
The practice location on file with NPPES is in San Tan Valley, AZ. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Grant Weaver?
The National Provider Identifier (NPI) for Grant Weaver is 1356482921, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-10.