About Dr. James Lahti, MD
James G. Lahti, MD, MPH, is a board-certified dermatologist.
Dr. Lahti is a diplomate of the American Board of Dermatology and is a fellow of the American College of Mohs Surgery.
Patient Education Resources
There is some evidence to suggest that diet can play a role in the development of acne. Studies have found that a diet high in sugar and processed foods can increase the risk of developing acne. Diets...
There are several ways to reduce the skin redness caused by rosacea:Avoiding triggers: Triggers such as sun exposure, wind, high temperatures, stress, spicy foods, and alcohol, can worsen the symptoms...
Biologics are a class of medications that are used to treat moderate to severe psoriasis. They are typically used when other treatments, such as topical creams and light therapy, have not been effecti...
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 ...
Treatment for psoriasis on the scalp typically involves a combination of topical and systemic therapies.Topical treatments include:Shampoos containing salicylic acid, coal tar, or sulfur, which can he...
Education & Training
A native of the Chicagoland area, he received his medical degree from Northwestern Medical School and completed residencies in internal medicine at Harvard University and dermatology at the University of Maryland, where he served as chief resident. He completed a fellowship in Mohs micrographic surgery at the Dermatologic SurgiCenter in Philadelphia and a Master's Degree in Public Health from the University of California, Berkeley. He is a clinical instructor at Northwestern University, Feinberg School of Medicine.
Professional Affiliations
Dermatology Partners of the North Shore

Dermatology Partners of the North Shore (DPNS) is the largest private dermatology clinic in the Chicago North Shore area. For more than 20 years and with over 200 years of combined experience, each provider at DPNS is dedicated to providing the highest quality dermatologic care in a friendly, compassionate environment.
Our three divisions, including the General Dermatology Center, our Surgical Center as well as our Center for Aesthetics, all provide the latest technology to meet the individual needs of our patients within the same convenient location.