Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Gregory Vorobiev
Behavior Technician in Hayward, CA · enumerated 2026.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1568307338
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Registry record
Entity type Individual (Type 1)
Name Gregory Vorobiev
Sex Male
Practice address 1600 B St, Hayward, CA, 94541
Phone (510) 688-8166
Enumeration date Apr 20, 2026
Last updated in NPPES Apr 20, 2026
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 Gregory Vorobiev?
Gregory Vorobiev 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.
Other providers at this practice address
Browse all → Lina Toutah Student in an Organized Health Care Education/Training Program · Hayward, CA NPI 1134930431 Vicente Diaz Behavior Technician · Hayward, CA NPI 1285589275 Jacqueline Avina Behavior Technician · Hayward, CA NPI 1073453494 Anushka Vispute Behavior Technician · Hayward, CA NPI 1225970007 Allana Joy Borbon Behavior Technician · Hayward, CA NPI 1508798075 Elayjah Brownlee Behavior Analyst · Hayward, CA NPI 1205748761 Laurie Chow Behavior Technician · Hayward, CA NPI 1952213217
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-20.