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

Dr. John Francis Grzebieniak, PHD

Individual provider Addiction (Substance Use Disorder) Psychologist · NPI 1437150968

Dr. John Francis Grzebieniak, PHD is a Clinical Psychologist in New Castle, Pennsylvania. Graduated from University of Pittsburgh School of Medicine in 1982, 44 years ago. Practices with Columbiana County Mental Health Clinic, a 21-clinician group and accepts Medicare assignment. Licensed in Ohio and Pennsylvania.

Years since qualifying
44
Trained at
University of Pittsburgh School of Medicine
Licensed in
OH, PA
In the registry since
2005
Specialties on file
3
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

128 Leeper Dr
New Castle, PA 16102-2716
Phone: (724) 667-9528
Show map & directions

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

Specialties & licences

Addiction (Substance Use Disorder) Psychologist (primary) Taxonomy 103TA0400X · Licence 84049 (OH)
Counseling Psychologist Taxonomy 103TC1900X · Licence 3293 (PA)
Counseling Psychologist Taxonomy 103TC1900X · Licence 3448 (OH)

Record details

NPI number1437150968
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedAugust 9, 2005
Last updated in NPPESJuly 13, 2026

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolUNIVERSITY OF PITTSBURGH SCHOOL OF MEDICINE
Graduated 1982 (44 years in practice)
Group practice Columbiana County Mental Health Clinic — 21 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare