Dr. John Thomas Callaghan , MD, PhD
Internal Medicine • Indianapolis, IN
Professional Overview & Biography Verified Profile Summary
Dr. John Callaghan, MD, PhD is a certified Internal Medicine practicing in Indianapolis, IN. With approximately 57 years of clinical experience since graduating from University Of Kentucky College Of Medicine in 1969, Dr. Callaghan delivers high-quality medical care to the local community at 1481 W 10TH ST.
Dr. Callaghan is affiliated with Iu Health Medical Group Llc and accepts Medicare assignment.
Practice Location & Contact Primary Location
1481 W 10th St
Indianapolis, IN 462022803
Medicare Profile & Education
University Of Kentucky College Of Medicine
1969
✓ Accepts Assignment
In-Person Only
Specialty Benchmarks & Practice Insights
Comparative analytics for Internal Medicine in Indianapolis, IN
Practicing in Indianapolis, IN (2204 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Clinical Seniority & Experience Comparison
Medical Specialties & State Licenses
CMS Verified: 2025-03-04NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
NUCC Taxonomy Code: 208U00000X
Clinical pharmacology encompasses the spectrum of activities related to the discovery, development, regulation, and utilization of safe and effective drugs.
NUCC Taxonomy Code: 208U00000X
Clinical pharmacology encompasses the spectrum of activities related to the discovery, development, regulation, and utilization of safe and effective drugs.
Additional State Medicaid & Healthcare Payer Identifiers
Hospital & Practice Group Affiliations
Iu Health Medical Group Llc
1701 N Senate Blvd, Indianapolis, IN 462021239
Phone: 8884843258
Secondary Practice Locations
1701 N Senate Blvd
Indianapolis, IN 462021239
Phone: 8884843258
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Internal Medicine - Cardiovascular Disease
Doctor of Medicine (M.D.), Master of Public Health
Audiologist
Doctor of Audiology
Dietitian, Registered
Registered Dietitian
Social Worker - Clinical
Licensed Clinical Social Worker
Recreation Therapist
Registered Nurse
NURSEPRACTITIONER
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Recorded as JOHN CALLAGHAN, MD, PHD
Clinical Pharmacology (License #01028895 in IN)
NPI status registered as active in NPPES database
Registered at 1481 W 10TH ST, INDIANAPOLIS, IN 462022803 (Tel: 3179882624)
Registered at 1481 W 10TH ST, INDIANAPOLIS, IN 462022803 (Tel: 3179882624)
Recorded as JOHN CALLAGHAN, M.D. PH.D.
Internal Medicine (License #01028895A in IN)
First registered as active Individual Practitioner in NPPES Database.
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NPI Administrative Meta
Mailing Address
1481 W 10th St
Indianapolis, IN 462022803
Phone: 3179882624
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.