Board Certified Dermatologist

Dr. Keegan practices medical, surgical and geriatric dermatology. He has a strong interest in treating persons with psoriasis and has served as an investigator in over 60 clinical trials to evaluate new treatments.  In addition, he practices all aspects of dermatology: moles, warts, skin cancer, skin infections, vitiligo and complex dermatologic cases.  Dr. Keegan has been honored with a number of grants, fellowships and awards including recognition from the National Institutes of Health and the American Medical Association. He was recently named as an editor of Clinical and Aesthetic Dermatology and Top Docs for NJ Top Doctors. Dr. Keegan loves training for triathlons and spending time with his family.


  • Board certified in dermatology
  • Fellow of the American Academy of Dermatology
  • Master of Science: New York University
  • Doctor of Philosophy: New York University
  • Doctor of Medicine: New York University
  • Internship: St. Vincent’s Catholic Medical Center, New York City
  • Residency in dermatology: University of Miami Miller School of Medicine
  • Practicing dermatology and dermatologic surgery
  • Member of the Attending Staff at Penn Medicine Princeton Health