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

John Whitelaw Markell, RD, CPT

Individual provider Registered Dietitian · NPI 1174159933

John Whitelaw Markell, RD, CPT is a Registered Dietitian in Elmsford, New York. Practices as a sole proprietor. 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

38203 Town Green Dr
Elmsford, NY 10523-1727
Phone: (914) 806-7178
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Registered Dietitian (primary) Taxonomy 133V00000X · Licence 86149958

Record details

NPI number1174159933
Entity typeIndividual (Type 1)
GenderMale
Credentials RD , CPT
Sole proprietorYes
NPI enumeratedMarch 12, 2020
Last updated in NPPESApril 14, 2023
Certification dateApril 14, 2023
Mailing address38203 Town Green Dr, Elmsford, NY 10523-1727

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