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

Mark William Humphrey Sr.

Individual provider Case Manager/Care Coordinator · NPI 1770116873

Mark William Humphrey Sr. is a Case Manager/Care Coordinator in Washington, District of Columbia. Registered with an NPI since 2020.

In the registry since
2020
Specialties on file
2

Practice location Address checks out

35 K St NE
Washington, DC 20002-4216
Phone: (202) 839-3500
Show map & directions

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

Specialties & licences

Case Manager/Care Coordinator (primary) Taxonomy 171M00000X
Home Health Aide Taxonomy 374U00000X

Record details

NPI number1770116873
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedFebruary 17, 2020
Last updated in NPPESJune 2, 2025
Certification dateJune 2, 2025

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