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

MS. Sarah Ridgway Johnston, RD

Individual provider Registered Dietitian · NPI 1891301958

MS. Sarah Ridgway Johnston, RD is a Registered Dietitian in Potomac, Maryland. Registered with an NPI since 2020.

In the registry since
2020
What do these letters mean?
RD — Registered Dietitian
A credentialed nutrition professional.

See every abbreviation used in this directory →

Practice location Address checks out

8233 Lochinver Ln
Potomac, MD 20854-2745
Phone: (301) 983-6711
Show map & directions

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

Specialties & licences

Registered Dietitian (primary) Taxonomy 133V00000X

Record details

NPI number1891301958
Entity typeIndividual (Type 1)
GenderFemale
Credentials RD
Sole proprietorNo
NPI enumeratedSeptember 23, 2020
Last updated in NPPESSeptember 23, 2020
Certification dateSeptember 23, 2020

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