Dr. Caleb B. Kallen is an obstetrician-gynecologist in Philadelphia, Pennsylvania and is affiliated with Thomas Jefferson University Hospitals-Jefferson Health. He received his medical degree from Perelman School of Medicine at the University of Pennsylvania and has been in practice for more than 20 years. Dr. Caleb B. Kallen accepts Aetna, Blue Cross, United Healthcare - see other insurance plans accepted. Dr. Caleb B. Kallen is highly recommended by patients.