About Dr. Teri McGillis, MD
Teri Mc Gillis is a board-certified dermatologist and a fellowship-trained MOHS surgeon. She is originally from California and her father is a dermatologist.
Dr. McGillis is internationally recognized, having spoken or taught in such places as Singapore, Indonesia, Israel, Brazil, and Germany as well as throughout the United States. She has published many articles and written book chapters to help advance her specialty. She came to Lancaster in 2007 to bring her expertise to the area.
Conditions Treated
Patient Education Resources
Yes, you can switch biologic medications for psoriasis if one is not working effectively. Biologic medications are a class of drugs that target specific parts of the immune system that are involved in...
Truncal acne, which refers to acne that occurs on the trunk of the body (such as the chest and back), may require a slightly different treatment approach than facial acne. This is because the skin on ...
Click on the product image below to access medication savings or patient support programs from the manufacturer. In some cases, a form must be submitted along with proof of having purchased the med...
Biologics are a class of medications that can be used to treat eczema, a chronic skin condition characterized by inflammation and itching. Biologics work by targeting specific parts of the immune syst...
The length of time it takes to remove a tattoo depends on several factors, including the size, location, and color of the tattoo, as well as the individual's skin type and overall health.The most ...
Education & Training
Dr. McGillis graduated from The University of California at Davis Medical School. Her internship was in San Francisco and residency at U.C. Davis. She was selected to complete a post-graduate fellowship in dermatologic surgery at the Cleveland Clinic where she concentrated on cosmetics, laser therapies and treatment of skin cancer. She remained on staff for almost 20 years.
Dermatology Physicians

Dermatology Physicians and Laser & Skin Care Center are proud to serve the Lancaster County area including Lancaster, Lititz, Ephrata, Manheim, Columbia, East Petersburg, Willow Street and the Willow Valley Retirement Community in Pennsylvania.
The mission of Dermatology Physicians is to deliver personalized service along with ethical, skilled, and comprehensive care. Our renowned physicians offer a broad range of diagnostic and therapeutic procedures, providing patients with unparalleled service. This vision is the cornerstone of who we are and what we do.
Our Laser and Skin Care Center is led by Dr. Patricia Groleau, a Board Certified Dermatologist. She specializes in the fields of cosmetic injectables (Botox, Juvederm, Voluma, Radiesse, Restylane, Sculptra, Kybella) and laser resurfacing.