P Praxis·MD
● Active Type 1 · Individual

DR. Stephen David Nicholson, PH.D.

Psychologist·Richardson, TX· NPI 1578887733 · Enumerated 2010 · 16 years on NPI
Nicholson is 1 of 22 psychologist providers in Richardson and 1 of 3401 in Texas.
NPI age
16 years
Enumerated 2010-03-17
Primary specialty
Psychologist
Plus 3 subspecialties
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2010-03-17
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
16 years
≈ at median (15 yr)
State licenses
1 state
7% of peers hold multiple states
Subspecialties
3
In the 26% of peers with subspecialties

NPI lifetime · 2010 → 2026

2010-03Enumerated in NPPES
2010 2026

Where they practice

Practice location
1701 Gateway Blvd
Richardson, TX 750803572
📞 2144356313fax 9726445512
Mailing address
1701 Gateway Blvd
Richardson, TX 750803572
📞 2144356313fax 9726445512

Specialties

  • Psychologist Primary
    A 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...
    TX license #23273 taxonomy 103TC0700X
  • Psychologist
    A psychologist who develops and applies scientific knowledge to the delivery of psychological services to infants, toddlers, children and adolescents within their social context. Of particular importance to the specialty of clinical...
    TX license #23273 taxonomy 103TC2200X
  • Psychologist
    A psychologist whose specialty is founded on principles of systems theory with the interpersonal system of the family the focus of assessment, intervention and research.
    TX license #23273 taxonomy 103TF0000X
  • Psychologist
    A psychologist who specializes in group psychology and group psychotherapy that is an evidenced-based specialty that prepares group leaders to identify and capitalize on developmental and healing possibilities embedded in the...
    TX license #23273 taxonomy 103TP2701X

Practice context

Part of a multi-provider practice. 12 other active providers share this practice address in NPPES.

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How to verify this provider

  1. Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
  2. Check the state license is currently active.State licensing boards publish current status; NPPES does not.
  3. Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.

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