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Oncology Dietitians in Illinois

Data updated monthly · Last refresh October 2026

6 Oncology Nutrition Registered Dietitian providers practice in Illinois. The largest concentration is in Chicago. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.

6providers
Chicagotop city

Oncology Nutrition Registered Dietitian by city in Illinois

Choose a city to see providers there.

Oncology Nutrition Registered Dietitian in Chicago2 providers
Oncology Nutrition Registered Dietitian in Mchenry1 providers
Oncology Nutrition Registered Dietitian in Highland Park1 providers
Oncology Nutrition Registered Dietitian in Zion1 providers
Oncology Nutrition Registered Dietitian in Urbana1 providers

Oncology Nutrition Registered Dietitian providers in Illinois

Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Grace Esler, MS, RD, CSO, LDN
Chicago, IL · No drug or device payments recorded (2025) · (312) 563-2018
Dr. Marissa Buchan, MS, RD
Chicago, IL · No drug or device payments recorded (2025) · (847) 722-0606
Dr. Lori Bumbaco, MS, RDN, CSO, LDN
Highland Park, IL · No drug or device payments recorded (2025) · (201) 787-2220
Dr. Lora Anderson, RD CSO LDN
Mchenry, IL · No drug or device payments recorded (2025) · (815) 344-8000
Dr. Tammie Zelko, RD
Urbana, IL · No drug or device payments recorded (2025) · (217) 326-3142
Dr. Mariah Long
Zion, IL · No drug or device payments recorded (2025) · (847) 872-4072

Common questions

How many Oncology Nutrition Registered Dietitian providers are in Illinois?

There are 6 Oncology Nutrition Registered Dietitian providers with active NPI records practicing in Illinois, according to federal NPPES data refreshed monthly.

Which cities in Illinois have the most Oncology Nutrition Registered Dietitian providers?

Chicago (2), Mchenry (1), Highland Park (1) have the highest concentration of Oncology Nutrition Registered Dietitian providers in Illinois.

Where does this data come from?

Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

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Related

Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory. Are you a Oncology Nutrition Registered Dietitian in Illinois? Get featured.