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Thomas D. Regan, M.D.

At Schweiger Dermatology Group, Dr. Regan specializes in Mohs Micrographic Surgery and Procedural Dermatology. He is a native of the Philadelphia area.

He received his Bachelor of Science degree at Ursinus College and his medical degree from Thomas Jefferson University.

A recipient of the military’s HPSP scholarship, he served 8 years in the United States Army after graduating from medical school. He completed his internship at Walter Reed Army Medical Center and then served as the Flight Surgeon for the 3rd Squadron 6th Cavalry Regiment in South Korea. He did his dermatology residency training at the Naval Medical Center in San Diego, California. He was then asked to join the teaching staff at one of the nation’s largest dermatology residency programs at the combined Brooke Army Medical Center and Wilford Hall Medical Center in San Antonio, Texas. While there he established and ran the department’s first laser and procedural dermatology clinic. In 2009, he deployed as the Battalion Surgeon for the 1st Squadron, 10th Cavalry Regiment and commanded a Level I Aid Station during combat operations in southern Iraq.

After finishing his military service, Dr. Regan completed an ACMS and ACGME approved fellowship in Mohs Micrographic Surgery and Procedural Dermatology at Cooper University Hospital with specialized training in skin cancer and reconstructive surgery. He is board certified by the American Board of Dermatology and is an Associate of the American College of Mohs Surgery.

Dr. Regan made the list of the region’s TOP DOCTORS, as chosen by his peers and published in Philadelphia Magazine in 2015 and again in 2016. Dr. Regan has lectured at several national medical meetings including the annual conferences for the American Academy of Dermatology and the American Society for Laser Medicine and Surgery. He has also published in many prominent medical journals to include the New England Journal of Medicine, the Journal of the American Academy of Dermatology, and the Dermatologic Surgery Journal among others.



  • Mohs Micrographic Surgery
  • Procedural Dermatology


Great doctors. Couldn’t be happier with my treatment. Very friendly office !!!


Schweiger Dermatology Group - Pine Street

822 Pine Street
Suite 2A
Philadelphia, PA 19107

Call: 267-519-0154

Book Appointment

About Schweiger Dermatology Group

Schweiger Dermatology Group was founded to help make excellent dermatology care accessible throughout the Northeast. In 2010, Dr. Eric Schweiger started the practice with a single location in Midtown Manhattan. When he saw the need for high-quality dermatology care that did not require weeks or months of waiting to see a qualified provider, his vision of a multi-location practice was born.

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