The Riordan Clinic (originally named Olive W. Garvey Center for the Improvement of Human Functioning, Inc.) was founded in 1975 by Dr. Hugh Riordan and Olive W. Garvey on the premise that all complex chronic illnesses, including cancer, were caused by nutrient deficiencies. They believed that correcting these nutrient deficiencies or imbalances would create an environment of healing and lead to an arrest or reversal of disease conditions. 

The Riordan Clinic was established as a 501 (c)(3) non-profit organization with missions in research, provider education, and patient education.

Riordan Clinic providers combine the best of orthomolecular, functional, naturopathic, and integrative medicine to determine the underlying or root causes of co-learner symptoms and formulate customized patient care plans to arrest and reverse those conditions. Specialties include: integrative oncology, integrative autoimmune disorders, integrative infectious diseases, anti-aging and longevity, functional psychiatry, and restorative and regenerative medicine.

Many patients use the Riordan Clinic exclusively to address their health issues, others choose to integrate our therapies with those of their traditional doctor. We provide the ultimate form of healing – hope. Whether you are at the beginning of your path to wellness or you have been challenged for many years, we can help. Take charge of your health by becoming a patient at the Riordan Clinic today.

Health Care

Riordan Clinic

Riordan Clinic's headquarters in Wichita, KS, United States

The Overland Park office focuses on patient education, holistic care, and medical leadership in the healthcare sector.

Overland Park

Steve Flesher

Ron Hunninghake M.D., Cmo

Amber Ragland

The Healthcare Support team at Riordan Clinic plays a crucial role in facilitating patient care by providing a seamless experience from initial contact through treatment. This multidisciplinary team, consisting of healthcare professionals such as nurse practitioners, registered nurses, and naturopathic doctors, collaborates to assess patient needs, administer therapies, manage billing, and ensure continuity of care. Their focus is on delivering compassionate support and guidance to patients pursuing integrative and functional medicine approaches, fostering an environment of healing and hope.

Healthcare Support

This department oversees the strategic direction and overall management of the organization.

Executive Leadership

This department focuses on creating and executing marketing strategies while managing developmental initiatives to enhance brand engagement and growth.

Marketing and Development

This department manages content marketing initiatives and supports financial operations.

Marketing and Finance

This department oversees the overall medical strategy and ensures high standards in healthcare delivery.

Medical Leadership

This department provides holistic health care through natural therapies and alternative medicine practices.

Riordan Clinic

Org chart

Teams

Healthcare Support

Executive Leadership

Marketing and Development

Marketing and Finance

Medical Leadership

Naturopathic Services

Offices

Riordan Clinic

Org chart

Teams

Healthcare Support

Executive Leadership

Marketing and Development

Marketing and Finance

Medical Leadership

Naturopathic Services

Offices

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