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

Carla Johnston, CNS

Individual provider Nutritionist · NPI 1700361367

Carla Johnston, CNS is a Nutritionist in Marriottsville, Maryland. Practices as a sole proprietor. Licensed in Maryland.

Licensed in
MD
In the registry since
2018
What do these letters mean?
CNS — Clinical Nurse Specialist
An advanced practice nurse specialising in a patient population or setting.

See every abbreviation used in this directory →

Practice location Address checks out

2221 John Gravel Rd Unit Q
Marriottsville, MD 21104-2007
Phone: (443) 398-0656
Show map & directions

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

Specialties & licences

Nutritionist (primary) Taxonomy 133N00000X · Licence DX3341 (MD)

Record details

NPI number1700361367
Entity typeIndividual (Type 1)
GenderFemale
Credentials CNS
Sole proprietorYes
NPI enumeratedSeptember 30, 2018
Last updated in NPPESSeptember 30, 2018