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

MS. Joanna Ruth Guest Smyers, MS, RD, LD

Individual provider Registered Dietitian · NPI 1467165936

MS. Joanna Ruth Guest Smyers, MS, RD, LD is a Registered Dietitian OR Nutrition Professional in Greenville, South Carolina. Qualified in 2015, 11 years ago. Practices as a sole proprietor and works from 3 locations. Licensed in South Carolina.

Years since qualifying
11
Licensed in
SC
In the registry since
2022
What do these letters mean?
MS — Master of Science
A graduate science degree.
RD — Registered Dietitian
A credentialed nutrition professional.
LD — Licensed Dietitian
A dietitian licensed by a state board.

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Practice location Address checks out

135 Commonwealth Dr Ste 210
Greenville, SC 29615-4850
Phone: (864) 675-4818
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 418 Cedar Pines Dr, Greenville, SC 29615-6241 — (864) 729-3003
  • 160 Academy Ave, Greenwood, SC 29646-3808 — (864) 725-4911

Specialties & licences

Registered Dietitian (primary) Taxonomy 133V00000X · Licence LRD.1691 (SC)

Record details

NPI number1467165936
Entity typeIndividual (Type 1)
GenderFemale
Credentials MS , RD , LD
Sole proprietorYes
NPI enumeratedDecember 29, 2022
Last updated in NPPESNovember 19, 2025
Certification dateNovember 19, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyREGISTERED DIETITIAN OR NUTRITION PROFESSIONAL
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

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