Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1508652702 Individual Practitioner Female Practitioner

Mary Kate Williamson , MS, RD

Dietitian, Registered • Chicago, IL

Professional Overview & Biography Verified Profile Summary

Mary Williamson, MS, RD is a registered healthcare professional specializing in Dietitian, Registered in Chicago, IL. Practice services are available at 2551 N CLARK ST STE 400 under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

2551 N Clark St Ste 400

Chicago, IL 606147725

Telephone 3125331754
Fax 3122687084
Associated Practice Facility / Clinic
🏢 Healthier Tomorrows, Pllc Facility NPI 1063769735

Specialty Benchmarks & Practice Insights

Comparative analytics for Dietitian, Registered in Chicago, IL

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 11.6 Yrs
State Avg: 16.7 Yrs
Regional Practice Density
943 Specialists

Practicing in Chicago, IL (2895 Statewide)

Telehealth Adoption Rate
3.4% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

CMS Verified: 2025-04-16
Dietitian, Registered Primary Specialty

NUCC 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.

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

30 Associated Practitioners
Holly Nusser , MS, RDN

Dietitian, Registered

NPI 1023930252

Master of Science, Registered Dietitian Nutritionist

Mia Bailey , RD

Dietitian, Registered

NPI 1043094188

Registered Dietitian

Abbey Amond , MS, RDN, LD

Dietitian, Registered

NPI 1043810245

Master of Science, Registered Dietitian Nutritionist, Licensed Dietitian

Crysta Sugamura , MS, RD, LDN

Dietitian, Registered

NPI 1073335162

Master of Science, Registered Dietitian, Licensed Dietitian Nutritionist

Miranda Andres , RDN

Dietitian, Registered

NPI 1184200818

Registered Dietitian Nutritionist

Kathryn Lovy , MS, RD

Dietitian, Registered

NPI 1205563129

Master of Science, Registered Dietitian

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events
NPI Profile Active April 16, 2025

NPI status registered as active in NPPES database

📍
Updated Practice Location April 16, 2025

Registered at 2551 N CLARK ST STE 400, CHICAGO, IL 606147725 (Tel: 3125331754)

📍
Updated Business Mailing Address April 16, 2025

Registered at 2551 N CLARK ST STE 400, CHICAGO, IL 606147725 (Tel: 3125331754)

👤
Provider Name / Credentials Updated April 16, 2025

Recorded as MARY WILLIAMSON, MS, RD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) April 16, 2025

Dietitian, Registered

🟢
Initial NPI Registration & Enumeration April 16, 2025

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1508652702
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 16, 2025
Last Update: April 16, 2025
Sole Proprietor: No

Mailing Address

2551 N Clark St Ste 400

Chicago, IL 606147725

Phone: 3125331754

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.