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

MS. Alyssa Marjorie McLellan, MS, RD, LD

Individual provider Registered Dietitian · NPI 1447414198

MS. Alyssa Marjorie McLellan, MS, RD, LD is a Registered Dietitian in Sioux Falls, South Dakota. Licensed in South Dakota. Registered with an NPI since 2008.

Licensed in
SD
In the registry since
2008
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.

See every abbreviation used in this directory →

Practice location Address checks out

2501 W 22nd St Bldg 1
Sioux Falls, SD 57105-1305
Phone: (605) 336-3230
Fax: (605) 333-5395
Show map & directions

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

Specialties & licences

Registered Dietitian (primary) Taxonomy 133V00000X · Licence 0416 (SD)

Record details

NPI number1447414198
Entity typeIndividual (Type 1)
GenderFemale
Credentials MS , RD , LD
Sole proprietorNo
NPI enumeratedJuly 11, 2008
Last updated in NPPESJanuary 19, 2018

Other providers in Sioux Falls