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

Mr. Jack Fredric Leiderman, LCSW-C

Individual provider Clinical Social Worker · NPI 1033267802

Mr. Jack Fredric Leiderman, LCSW-C is a Clinical Social Worker in Rockville, Maryland. Practices as a sole proprietor. Licensed in District of Columbia, Maryland and Virginia.

Licensed in
DC, MD, VA
In the registry since
2007
Specialties on file
3

Practice location PO Box

The provider listed a PO Box rather than a street location, so this is not a walk-in address.

PO Box 10475
Rockville, MD 20849-0475
Phone: (240) 731-5353
Show map & directions

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

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 07933 (MD)
Clinical Social Worker Taxonomy 1041C0700X · Licence 0904004377 (VA)
Clinical Social Worker Taxonomy 1041C0700X · Licence LC302377 (DC)

Record details

NPI number1033267802
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW-C
Sole proprietorYes
NPI enumeratedJanuary 8, 2007
Last updated in NPPESNovember 29, 2025
Certification dateNovember 29, 2025

Other providers in Rockville