P Praxis·MD
● Active Type 1 · Individual

DR. Amy Lynn Guillen, PH.D.

Psychologist·Fort Sam Houston, TX· NPI 1184105587 · Enumerated 2018 · 7 years on NPI
Guillen is 1 of 65 psychologist providers in Fort Sam Houston and 1 of 3401 in Texas.
NPI age
7 years
Enumerated 2018-08-23
Primary specialty
Psychologist
Plus 1 subspecialty
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2021-03-10
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
7 years
↓ 8 yr below median (15 yr)
State licenses
1 state
7% of peers hold multiple states
Subspecialties
1
In the 26% of peers with subspecialties

NPI lifetime · 2018 → 2026

2018-08Enumerated in NPPES
2018 2026

Where they practice

Practice location
3551 Roger Brooke Dr
Fort Sam Houston, TX 782344504
📞 4144690476
Mailing address
3551 Roger Brooke Dr
Fort Sam Houston, TX 782344504

Additional practice locations

1 secondary location on file with NPPES.

Location 2
803 Misty Water Ln
San Antonio, TX 782608043
📞 4144690476

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 #37902 taxonomy 103TC0700X
  • Psychologist
    A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles,...
    TX license #37902 taxonomy 103T00000X

Practice context

Part of a multi-provider practice. 1394 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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