Doctors & Staff

Our Holistic Health Care Staff Empowers Patients with Self-Care Tools & Knowledge

With impressive credentials and decades of experience, the physicians at the Riordan Clinic provide the very best in care and expertise. Our outstanding staff includes experienced and caring professionals who will make your time at the Riordan Clinic among the best medical experiences of your life.

Medical Providers

Ron Hunninghake, MD

Chief Medical Officer

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Lucas Tims, ND, FABNO

Overland Park Campus

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Michael Shaw, PA-C, ABAAHP

Wichita Campus

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Administrative Team

Steve Flesher

Chief Executive Officer

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Mike Stewart

Chief Operating Officer

Carol Marsh

Director of Finance

Paul Taylor

Director of Information Services

Erin Manning, MBA

Director of Marketing

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Megan Neathery, MSM

Nutrient Store Manager

Leah Chischilly, MS, L.Ac.

Education Coordinator

Jason Hattrup

New Patient Coordinator

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Rachel Brewster

Accounting Assistant

Sabrina Proffitt

Medical Records

Pat Knafla

Medical Records

Front Office: Wichita

Jean Van Ness

Director of Front Office Operations

Mona Wilson

Patient Care Team

Lyndsi Herring

Patient Care Team

Clinic Team: Wichita

Chris Brannon, MHCL, RN, BSN

Director of Clinical Services

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Annette Chlumsky, RN

Registered Nurse

Krystal Dinkel, RN

Registered Nurse

Olivia Nugroho, RN, BSN

Registered Nurse

Danae Baker, NCMA AAS

Certified Medical Assistant

Kristy Reid MA, AAS

Medical Assistant

Alisha Gillespie

Clinical Assistant

Overland Park Office

Michelle Carpet, MBA

Director of Operations Overland Park

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Emmy Gomez

Front Desk Services Coordinator

Kim Medis, RN, BSN

Registered Nurse

Polly Breitenkamp RN, BSN

Registered Nurse

Hannah Gunnison, RN, BSN

Registered Nurse

Kelsey Lafferty, RN, BSN

Registered Nurse

Sarah Wedel, RN, BSN, CNOR

Registered Nurse

Hays Office

Betty Brungardt

Office Manager, Hays

Jennifer Tutak, RN

Registered Nurse

Debbie Augustine, LPN

Licensed Practical Nurse

Bio-Center Lab Team

Charles Hinshaw, MD

Laboratory Director

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Karen Moore MLT(CSMLS)

Laboratory Manager

Jerry Tiemeyer MT(ASCP)

ASCP • Laboratory Technologist

Amanda Vuong MLS (ASCP) CM

Laboratory Technologist

Melissa Ortiz MLS (ASCP) CM

Laboratory Technologist

Amanda Lee NCMA, AAS


Courtney Knapp, CPT


Maintenance and Facilities

Dang Nguyen

Maintenance Manager

Aaron Kramme


Scott Fryar



Carolyn Mitchell

Volunteer | May 1989

Jere Woodard

Volunteer | December 2003 - August 2020

Shawndra Hartman

Volunteer | February 2016

Jocelyn Pickard

Volunteer | March 2017

Connie Porazka

Volunteer | April 2017

Jackie Abromeit

Volunteer | July 2017

Janice Cole

Volunteer | June 2018

Diana Holder

Volunteer | 2019

Debbie Sanford

Volunteer | September 2019