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

Janice Ketcham Williams, FNP, DNP

Individual provider Family Nurse Practitioner · NPI 1629019757

Janice Ketcham Williams, FNP, DNP is a Family Nurse Practitioner in Washington, District of Columbia. Works from 2 locations. Licensed in District of Columbia and Maryland.

Licensed in
DC, MD
In the registry since
2006
Specialties on file
2
What do these letters mean?
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.
DNP — Doctor of Nursing Practice
The highest clinical degree in nursing.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1900 Massachusetts Ave SE
Washington, DC 20003-2542
Phone: (202) 548-6500
Fax: (202) 548-6534
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (1)

  • 21729 Great Mills Rd Ste C, Lexington Park, MD 20653-3815 — (301) 888-2233

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence NP961616 (DC)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence R135421 (MD)

Record details

NPI number1629019757
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP , DNP
Sole proprietorNo
NPI enumeratedJune 9, 2006
Last updated in NPPESMay 1, 2025
Certification dateMay 1, 2025

Other providers in Washington