A Skin Care Team You Can Trust

Our board certified dermatologist and physician assistants treat all medical and cosmetic skin conditions



Our providers specialize in all areas of dermatology, and some have sub-specialties offering a full range of services for skin, hair, and nails.



We offer a wide range of injectable treatments for a variety of dermatological conditions. The practice also has over 100+ laser and light devices.


About Us

Since 1986, Advanced Dermatology, P.C. and the Center for Laser & Cosmetic Surgery has been offering a wide array of medical, cosmetic, laser and plastic surgery services. In addition to specializing in all areas of adult and pediatric dermatology, many of our dermatologists have subspecialty training in their area of expertise.

Our facilities provide personalized, conservative, effective and less painful treatments for a variety of skin conditions. Our board-certified physicians are collectively fellows of the American Academy of Dermatology, American Society for Laser Medicine and Surgery, American Contact Dermatitis Society, and many other societies and serve as official spokespeople for The American Academy of Dermatology and The American Society for Dermatologic Surgery. With our special expertise and the unusually broad range of services provided at our state-of-the-art offices, we have been featured in many local and national newspapers and magazines as well as radio and television news programs. We continue to improve our procedures and services with the most up-to-date advanced instruments and techniques that the dermatological field offers.

Chadds ford Dermatology Providers

Jennifer Marthers


Jennifer is a board-certified Adult-Gerontology Nurse Practitioner with additional specialty certification as a Dermatology Certified Nurse Practitioner (DCNP). She earned her master’s degree in nursing as an Adult-Gerontology Primary Care Nurse Practitioner from the University of Pennsylvania in 2017 and has been practicing in dermatology ever since. Jennifer trained alongside top dermatology providers and gained firsthand experience in diagnosing and treating a variety of dermatologic issues including skin cancer, melanoma, acne, psoriasis, rosacea, and atopic dermatitis. She is also passionate about working closely with her patients to address anti-aging concerns and produce natural results.

Loretta Pratt


Dr. Pratt is Board Certified in Internal Medicine and Dermatology. She received her medical degree from the Mount Sinai School of Medicine in New York and was a Fellow in Investigative Dermatology at Rockefeller University. She completed her Dermatology Residency training at New York Hospital/ Cornell. Dr.Pratt is experienced in both medical and cosmetic dermatology. She is co-author of a book entitled, “The Life of the Skin” published by Bantam books. She believes that the practice of medicine is both an Art and a Science and brings this philosophy to the care of each and every patient.

Same day or evening appointments are often available.
Most insurance is accepted

Book Online

(610) 558-1200


  • Lori D.

    2 days ago

    The staff was very helpful and accommodating. The doctor was very personable and professional.


  • Arthur A.

    2 days ago

    My 1st visit to the office and had a small procedure done. I was treated well, the staff is friendly, they made me feel very comfortable and was timely.


  • Pete C.

    2 days ago

    Great office! The whole crew is great. Very friendly, knowledgeable and professional. I am not a fan of going to the doctor’s, but they make me feel like one of the family.