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

Dr. Timothy Lionetti, PHD

Individual provider Clinical Child & Adolescent Psychologist · NPI 1366576860

Dr. Timothy Lionetti, PHD is a Clinical Psychologist in Clarks Summit, Pennsylvania. Qualified in 2001, 25 years ago. Practices with Geisinger Clinic, a 3,413-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Pennsylvania.

Years since qualifying
25
Licensed in
PA
In the registry since
2007
Specialties on file
2
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

421 S State St
Clarks Summit, PA 18411-1684
Phone: (570) 585-2927
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

School Psychologist (primary) Taxonomy 103TS0200X
Clinical Child & Adolescent Psychologist Taxonomy 103TC2200X · Licence PS015638 (PA)

Record details

NPI number1366576860
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedMarch 15, 2007
Last updated in NPPESSeptember 7, 2011
Mailing addressPo Box 32, Clarks Summit, PA 18411-0032

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2001 (25 years in practice)
Group practice Geisinger Clinic — 3413 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services