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

MS. Marlene Ariel Ortega, RDN

Individual provider Registered Dietitian · NPI 1336930700

MS. Marlene Ariel Ortega, RDN is a Registered Dietitian OR Nutrition Professional in Manhattan, Illinois. Qualified in 2017, 9 years ago. Practices as a sole proprietor. Licensed in Illinois.

Years since qualifying
9
Licensed in
IL
In the registry since
2025
What do these letters mean?
RDN — Registered Dietitian Nutritionist
The current title for a registered dietitian.

See every abbreviation used in this directory →

Practice location Address checks out

23211 S US Highway 52
Manhattan, IL 60442-9320
Phone: (815) 302-1626
Show map & directions

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

Specialties & licences

Registered Dietitian (primary) Taxonomy 133V00000X · Licence 164009069 (IL)

Record details

NPI number1336930700
Entity typeIndividual (Type 1)
GenderFemale
Credentials RDN
Sole proprietorYes
NPI enumeratedMay 15, 2025
Last updated in NPPESMay 21, 2025
Certification dateMay 21, 2025

Medicare enrollment

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

Medicare specialtyREGISTERED DIETITIAN OR NUTRITION PROFESSIONAL
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare