IU Health
John T. Callaghan, MD, PhD - Clinical Pharmacology

John T. Callaghan, MD, PhD

IU Health

Clinical Pharmacology

Accepting New Patients
  • Biography
  • Insurance
  • Locations
  • Specialties & Details

John Callaghan MD, PhD, is the Director of the IU Health Precision Medicine Clinic. He works with a mixed discipline team from the Indiana University Institute of Personalized Medicine to bring precision (personalized) medicine into the IU Health portfolio of advanced specialty care. Working with patients who do not respond to medications as expected, Dr. Callaghan uses precision medicine to customize medication selection and dose.

Dr. Callaghan is board certified in internal medicine and clinical pharmacology and an associate professor in medicine, and pharmacology and toxicology at Indiana University School of Medicine. In addition to directing the IU Health Precision Medicine clinic, he advises the IU Health Precision Genomics (Oncology) team and the IU Pharmacogenomics Laboratory. He also serves as a member of the National Veterans Affairs Pharmacogenetics Committee and the national Clinical Pharmacogenetics Implementation Consortium (CPIC).

Dr. Callaghan has a PhD in pharmacology/clinical pharmacology from the University of Minnesota. He worked at Eli Lilly and Company as a clinical trial investigator and as director of the U.S. Clinical Pharmacology and Exploratory Medicine Service. While at Lilly, Dr. Callaghan was an adjunct faculty member in the IU School of Medicine Division of Clinical Pharmacology. After he retired from Eli Lilly and joined the division, he served as co-director of the NIH T-32 Clinical Pharmacology Fellowship program. Dr. Callaghan has served as a hospitalist, associate chief of staff for research and development (Health Services R&D) at the Richard L. Roudebush VA Medical Center and associate dean for VA research for IU School of Medicine. He participated in the VA Million Veteran Program in Indiana and VA Cooperative Studies Programs and was an active member on several institutional boards (Simon Cancer Center, Regenstrief Institute, and Indiana Institute for Medical Research).


Insurance plans accepted by this provider are below.

  • Aetna Medicare Advantage
  • Anthem Blue Cross Blue Shield
  • Anthem Healthy Indiana Plan
  • Anthem Hoosier Care Connect
  • Anthem Hoosier Healthwise
  • Anthem Medicare PPO
  • Anthem Pathway Essentials Network
  • Care Source Healthy Indiana Plan
  • Care Source Hoosier Healthwise
Community Health Alliance
Community Health System
Coventry/First Health
Deaconess OneCare
  • Health Alliance Medicare Advantage
  • Humana Medicare Advantage
IU Health Plans
Johnson County Health Network
Lutheran Preferred
  • Managed Health Services Healthy Indiana Plan
  • Managed Health Services Hoosier Care Connect
  • Managed Health Services Hoosier Healthwise
  • Managed Health Services Medicare Advantage
  • MDWise Excel Healthy Indiana Plan
  • MDWise Excel Hoosier Healthwise
  • Parkview Health Plan Signature Care PPO
  • Point Comfort - Refugee Medical Assistance Program
  • Point Comfort - Unaccompanied Children Program
Select Health Network
  • The Healthcare Group Encircle
  • The Healthcare Group Encore
  • TriCare Select
  • United DSNP
  • United HealthCare
  • United HealthCare Hoosier Care Connect
  • United HMO
  • United Medicare Advantage
  • United PPO
  • VA - CCN via United Healthcare

Note: Although this listing was accurate at the time of posting, insurances change regularly, and insurance plans listed may not be accepted at all office locations for this provider. Please confirm with your insurance company that this provider is covered by your plan before your appointment.

Specialties & Details


Clinical Pharmacology

Conditions & Treatments:

Precision Medicine, Prefers to See Patients with Problems Related to Drug Therapy in Hospital, Idiosyncratic Drug Complications


School of Medicine:

University of Kentucky


University of Minnesota


University of Minnesota


University of Minnesota

Hospitals & Affiliations

Hospital Privileges:

IU Health Methodist/IU Health University

Physician Group:

IU Health Physicians

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