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

Nathaniel Mallard

Individual provider Clinical Social Worker · NPI 1164309969

Nathaniel Mallard is a Clinical Social Worker in Philadelphia, Pennsylvania. Practices as a sole proprietor and works from 2 locations. Licensed in Pennsylvania.

Licensed in
PA
In the registry since
2025
Specialties on file
2

Practice location Address checks out

4601 Market St
Philadelphia, PA 19139-4636
Phone: (215) 220-2127
Show map & directions

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

Additional practice locations (1)

  • 2801 Grant Ave, Philadelphia, PA 19114-1032 — (215) 878-3400

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence CW027546 (PA)
Social Worker Taxonomy 104100000X · Licence SW142961 (PA)

Record details

NPI number1164309969
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedAugust 21, 2025
Last updated in NPPESAugust 3, 2026
Certification dateAugust 3, 2026

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