Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Giannah Theresa Simmons
Behavior Technician in Richmond, CA · enumerated 2025.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1366314890
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Registry record
Entity type Individual (Type 1)
Name Giannah Theresa Simmons
Sex Female
Practice address 668 S 26th St, Richmond, CA, 94804
Phone (925) 250-9860
Enumeration date Sep 23, 2025
Last updated in NPPES Sep 23, 2025
Taxonomy & licenses
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.
Frequently asked questions
What specialty is Giannah Simmons?
Giannah Simmons is registered in NPPES with the primary taxonomy of Behavior Technician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-23.