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

MS. Mary Ann Keller, RN

Individual provider Registered Nurse · NPI 1972896553

MS. Mary Ann Keller, RN is a Registered Nurse in Washington, District of Columbia. Licensed in District of Columbia and Virginia. Registered with an NPI since 2011.

Licensed in
DC, VA
In the registry since
2011
Specialties on file
2
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.

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Practice location Address checks out

520 6th St SE
Washington, DC 20003-2705
Phone: (703) 402-3728
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Registered Nurse (primary) Taxonomy 163W00000X · Licence 1008097 (DC)
Registered Nurse Taxonomy 163W00000X · Licence 0001112422 (VA)

Record details

NPI number1972896553
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN
Sole proprietorNo
NPI enumeratedMay 16, 2011
Last updated in NPPESMay 16, 2011

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