Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Shelby Tomaszewski
Adult Companion in Hercules, CA · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1841917713
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Registry record
Entity type Individual (Type 1)
Name Shelby Tomaszewski
Sex Female
Practice address 500 Alfred Nobel Dr Ste 275, Hercules, CA, 94547
Phone (510) 230-5007
Enumeration date Oct 21, 2022
Last updated in NPPES May 27, 2025
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1801356787 | Other | CA | 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.
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 Shelby Tomaszewski?
Shelby Tomaszewski is registered in NPPES with the primary taxonomy of Adult Companion. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Kimberly Rojas Behavior Analyst · Hercules, CA NPI 1912657214 Alexus Genochio Behavior Technician · Hercules, CA NPI 1174269708 Amalisa Johnson Behavior Technician · Hercules, CA NPI 1851023089 Shawn Smith Behavior Technician · Hercules, CA NPI 1295461184 Salma Hernandez Behavior Technician · Hercules, CA NPI 1306560313 Michaela Calapati Behavior Technician · Hercules, CA NPI 1962126045 Iraselma Paniagua Behavior Technician · Hercules, CA NPI 1124731856 Jay-Ling Lira Behavior Technician · Hercules, CA NPI 1962116368
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-05-27.