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.
Patient Education Resources
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 ...
A dermatologist can make you appear more youthful by using a variety of treatments, such as:Topical creams and serums that contain ingredients like retinoids and hyaluronic acid to improve skin textur...
Click on the image to access medication savings In most cases, this form must be submitted along with proof of having purchased the medication from the pharmacy. Offers may be time-limit...
Dry skin can be caused by a variety of factors, such as cold weather, low humidity, harsh soaps, and certain medical conditions. Here are some tips for treating dry skin:Moisturize: Moisturizing is th...
Microneedling is a cosmetic procedure that involves using a device with fine needles to create tiny punctures in the skin. The needles are typically between 0.5mm and 2.5mm in length, and are used to ...
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.