Individual Healthcare Provider
Russell Tennyson Toll, PHD
Provider's NPPES record last updated: August 28, 2025
Overview
- Entity Type
- Individual Healthcare Provider
- NPI
- 1356053565
- Primary Specialty
- Specialist/Technologist, Other — Biomedical Engineering
- Practice Location
- Southlake, Texas
- Sole Proprietor
- No
Federal Screening
NPISignal checked this NPI against federal exclusion sources. Results below are based on the NPI number itself — an identifier match, not a name match.
List of Excluded Individuals/Entities (LEIE)
HHS Office of Inspector General
No potential match was identified in NPISignal's indexed List of Excluded Individuals/Entities (LEIE) records as of 2026-09-10.
- Source data
- September 10, 2026
- Records indexed
- 84,001
- Screened
- Sep 17, 2026, 10:56 PM UTC
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
SAM.gov Exclusions
U.S. General Services Administration
SAM.gov Exclusions was not checked.
SAM.gov screening is not configured on this deployment. No SAM check has been performed.
- Screened
- Not checked
This is an NPI-based check only. NPISignal does not publish name-based exclusion matches on a provider profile. A shared or similar name is a lead that requires human review, not an identification, and this page is not the place to make one. Run a name-based screening below to see potential matches with the reasons for each.
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
Searches OIG LEIE and SAM.gov by name and reviews every potential match.
Specialties & Taxonomies
- Primary
Specialist/Technologist, Other
Biomedical Engineering
Technologists, Technicians & Other Technical Service Providers
None
Taxonomy code 246ZB0301X Specialist/Technologist, Other
EEG
Technologists, Technicians & Other Technical Service Providers
Definition to come...
Taxonomy code 246ZE0500XSpecialist/Technologist
Speech, Language and Hearing Service Providers
General classification identifying individuals who are trained on a specific piece of equipment or technical procedure.
Taxonomy code 235500000X
Practice Locations
Practice Location
771 E Southlake Blvd Ste 222
Southlake, Texas 76092-7065
Phone: (817) 888-6974
Record Information
- Enumeration Date
- December 19, 2022
- Provider's NPPES Record Last Updated
- August 28, 2025
- Certification Date
- August 28, 2025
- NPISignal NPPES Dataset
- August 2026
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