Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Douglas Gregory Allen, PHD

Individual provider Clinical Neuropsychologist · NPI 1598950040

Dr. Douglas Gregory Allen, PHD is a Clinical Psychologist in Austin, Texas. Graduated from University of California, San Diego School of Medicine in 2000, 26 years ago. Practices with Atx Neuropsychology PLLC, a 3-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Texas.

Years since qualifying
26
Trained at
University of California, San Diego School of Medicine
Licensed in
TX
In the registry since
2007
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

711 W 38th St Ste F2
Austin, TX 78705-1133
Phone: (512) 637-5841
Fax: (512) 637-5997
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Neuropsychologist (primary) Taxonomy 103G00000X · Licence 33416 (TX)

Record details

NPI number1598950040
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedSeptember 7, 2007
Last updated in NPPESJune 26, 2026
Certification dateJune 26, 2026
Mailing address711 W 38th St Ste F2, Austin, TX 78705-1133

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolUNIVERSITY OF CALIFORNIA, SAN DIEGO SCHOOL OF MEDICINE
Graduated 2000 (26 years in practice)
Group practice Atx Neuropsychology Pllc — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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