Ryan Clark
Dietitian, Registered • La Grange, IL
5101 Willow Springs Rd
La Grange, IL 605252600
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
Practice Location & Contact Primary Location
5101 Willow Springs Rd
La Grange, IL 605252600
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Dietitian, Registered: NPPES taxonomy is a reported classification, not proof of board certification.
NPI first issued
2025
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Compared with the same specialty in La Grange and Illinois
9 active clinicians are listed under Dietitian, Registered with a practice address in La Grange, IL (2,908 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
Sources: CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-10-29NUCC Taxonomy Code: 133V00000X
A Registered Dietitian (RD)/Registered Dietitian Nutritionist (RDN) is an individual uniquely trained in the science of nutrition and practice of dietetics to design and provide medical nutrition therapy (MNT) and other evidence-based applications of the Nutrition Care Process (NCP) that exemplify the profession's systematic approach to providing high quality nutrition care. Registered dietitians provide MNT for the purpose of disease prevention or management, or to treat or rehabilitate an illness, injury, or condition, with the use of specific, indicated physical and cognitive nutrition care services comprised of one or more of the following aspects of the NCP: nutrition assessment/reassessment, nutrition diagnosis, nutrition intervention (e.g., nutrition counseling, therapeutic diet ordering, and nutrition education) and nutrition monitoring and evaluation.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Anesthetist, Certified Registered
Certified Registered Nurse Anesthetist
Nurse Practitioner
Nurse Practitioner (Certified)
Clinical Nurse Specialist - Critical Care Medicine
Advanced Practice Registered Nurse
Radiology - Diagnostic Radiology
Doctor of Medicine (M.D.)
Nurse Practitioner
Advanced Practice Nurse
Family Medicine - Geriatric Medicine
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated October 29, 2025.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from November 2025 to November 2026.
NPI Administrative Meta
Mailing Address
4700 Belmont Rd
Downers Grove, IL 605153220
Phone: 6308815881