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Search › Pennsylvania › Addiction (Substance Use Disorder) Psychologist

John Grzebieniak, PH.D

NPI 1437150968 · on the registry since 2005

Practice

Address
128 Leeper Dr
New Castle, PA 16102
Phone
(724) 667-9528

Registry record

Primary taxonomy
Addiction (Substance Use Disorder) Psychologist
103TA0400X
Also registered as
Counseling Psychologist
Counseling Psychologist
Licence states on file
OH, PA
From the registry's licence fields, which are often incomplete.
Sex
Male
Record last updated
2026-07-13

Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in Pennsylvania