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

Dr. John Zager, PHD

Individual provider Psychologist · NPI 1366500894

Dr. John Zager, PHD is a Psychologist in College Park, Maryland. Practices as a sole proprietor. Licensed in Maryland.

Licensed in
MD
In the registry since
2006
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

4700 Berwyn House Rd Ste 105
College Park, MD 20740-2474
Phone: (301) 537-7284
Fax: (301) 474-0432
Show map & directions

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

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 02029 (MD)

Record details

NPI number1366500894
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedDecember 5, 2006
Last updated in NPPESJuly 8, 2007
Mailing address9029 49th Pl, College Park, MD 20740-1834

Other providers in College Park