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

Gregory Alan Seidel, PHD

Individual provider Clinical Neuropsychologist · NPI 1447602982

Gregory Alan Seidel, PHD is a Clinical Psychologist in Philadelphia, Pennsylvania. Qualified in 2014, 12 years ago. Practices with Jefferson University Physicians, a 1,554-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Pennsylvania.

Years since qualifying
12
Licensed in
PA
In the registry since
2016
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

909 Walnut St Fl 2
Philadelphia, PA 19107-5211
Phone: (215) 955-7952
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1098 W Baltimore Pike, Media, PA 19063-5139 — (610) 744-2960

Specialties & licences

Clinical Neuropsychologist (primary) Taxonomy 103G00000X · Licence PS018084 (PA)

Record details

NPI number1447602982
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedJuly 8, 2016
Last updated in NPPESOctober 14, 2021
Certification dateOctober 14, 2021

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Jefferson University Physicians — 1554 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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