P Praxis·MD
● Active Type 1 · Individual

DR. William Wallace Wardell, PH.D.

Psychologist·Houston, TX· NPI 1770505851 · Enumerated 2006 · 19 years on NPI
Wardell is 1 of 585 psychologist providers in Houston and 1 of 3401 in Texas.
NPI age
19 years
Enumerated 2006-07-24
Primary specialty
Psychologist
Plus 1 subspecialty
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2011-10-21
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org

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
1
In the 26% of peers with subspecialties

NPI lifetime · 2006 → 2026

2006-07Enumerated in NPPES
2006 2026

Where they practice

Practice location
4314 Yoakum Blvd
Houston, TX 770065818
📞 7138500049
Mailing address
4314 Yoakum Blvd
Houston, TX 770065818
📞 7138500049

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 #23489 taxonomy 103TC0700X
  • Psychologist
    A psychologist with a proficiency that involves the application of psychological treatment of addiction stemming from the use of alcohol and other psychoactive substances (e.g., nicotine, marijuana, cocaine, heroin) or behavioral...
    TX license #23489 taxonomy 103TA0400X

Identifiers

TypeValueNotes
05 (TX) 034153901
05 (TX) 034153902
01 (TX) P00930109 RR MCR

Practice context

Part of a multi-provider practice. 73 other active providers share this practice address in NPPES.

Recently enumerated nearby: 6 new psychologist providers have been added in Houston in the last 180 days. See all →
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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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