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

Individual provider Family Nurse Practitioner · NPI 1245239276

Denise Johnstone, MSN, CRNP is a Family Nurse Practitioner in Washington, District of Columbia. Licensed in District of Columbia. Registered with an NPI since 2005.

Licensed in
DC
In the registry since
2005
What do these letters mean?
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.
CRNP — Certified Registered Nurse Practitioner
The title Pennsylvania and some other states use for a nurse practitioner.

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Practice location Address checks out

2150 Pennsylvania Ave NW Ste 10-412
Washington, DC 20037-3201
Phone: (202) 741-3398
Fax: (202) 741-3398
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence RN965339 (DC)

Record details

NPI number1245239276
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSN , CRNP
Sole proprietorNo
NPI enumeratedJuly 20, 2005
Last updated in NPPESJuly 13, 2026

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