NPI age
19 years
Enumerated 2006-08-02
● Active
Type 1 · Individual
Mark S Rider, PHD
Rider is 1 of 24 psychologist providers in Southlake and 1 of 3401 in Texas.
Primary specialty
Psychologist
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2009-06-08
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 3401 active psychologist providers in Texas.
NPI age
19 years
↑ 4 yr above median (15 yr)
State licenses
1 state
7% of peers hold multiple states
Subspecialties
0
26% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-08Enumerated in NPPES
2006
2026
Where they practice
Practice location
558 Silicon Dr, #102
Southlake, TX 760927529
Mailing address
558 Silicon Dr, #102
Southlake, TX 760927529
Specialties
-
Psychologist PrimaryA psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (TX) | 00K03H |
Practice context
Solo or small practice. No other active providers share this practice address in NPPES. This provider is listed as a sole proprietor.
Recently enumerated nearby: 1 new psychologist provider has been added in Southlake in the last 180 days.
See all →
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