Our Dermatologists

Our Physicians

Dr. Carol Prince joined Great Lakes Dermatology in December of 2011. Dr. Prince is a board-certified dermatologist. Prior to completing medical school, she received an undergraduate degree in Nursing from Wayne State University and a Masters Degree in Public Health from the University of Michigan.

Following her graduation from Michigan State University’s medical school, she completed her residency in dermatology at Wayne State University. After completing her residency, Dr. Prince worked in private practice, including running her own successful practice, Family Dermatology Center, for twenty years. Most recently, she was a dermatologist at the Marshfield Clinic in Wausau. Dr. Prince has been an active member of her community. She has tremendous dermatology experience and exceptional interpersonal skills. With every patient she treats, she works to create the very best experience for all patients, making sure that her patients leave having all of their questions answered. Dr. Prince treats patients of all ages at the Mt. Pleasant and Racine clinics.

Dr. Douglas Leone completed his residency at the University Of Connecticut Health Center in July 2010 and began his career with Great Lakes Dermatology in September 2010.

Dr. Leone graduated Summa Cum Laude at the University of Illinois at Urbana-Champaign, and completed his medical degree at University of Illinois at Chicago in May 2006. While attending medical school, Dr. Leone achieved multiple honors and awards, including: McGraw Hill Appleton-Lange Award given for Academic Excellence in medical school and the Senior Legacy Endowed Award for the highest overall academic performance in medical school.

Originally from the northern Illinois area, Dr. Leone was very excited to move to southeastern Wisconsin and practice close to home.

Dr. Kevin Belasco, board-certified dermatologist, will join Great Lakes Dermatology in February 2011 seeing new patients at our new Brookfield clinic. Dr. Belasco specializes in therapy for patients with Psoriasis using biologic and other systemic therapy as well as phototherapy.

Dr. Belasco earned his Doctor of Osteopathic Medicine degree at Touro University College of Osteopathic Medicine in 2004. He completed his residency in dermatology in July 2008 at Sun Coast Hospital, Nova Southeastern University in Largo, Fla. Dr. Belasco has been in private dermatology practice in northern Wisconsin since 2008.

He is a current member of the Academy of Dermatology, American Osteopathic Association, National Psoriasis Foundation and the American Osteopathic College of Dermatology. Dr. Belasco also holds a voluntary assistant professorship at the University of Wisconsin. He has also lectured throughout the country in the field of psoriasis, acne, and rosacea.

Dr. Laura Marusinec: A board-certified pediatrician from West Allis, Dr. Marusinec comes to us with strong dermatology education and experience specializing in pediatrics. She recently completed a dermatology fellowship at the University of Texas in Houston and also received training in dermatology with The Children's Hospital in Denver.


Dr. Marusinec graduated from Marquette University in 1991 with a degree in Biology. She graduated from the Medical College of Wisconsin in 1995. Dr. Marusinec completed her pediatrics internship and residency at Children's Hospital of Wisconsin.

Specializing in pediatrics, Dr. Marusinec has over four years of treating dermatology patients working at a dermatology practice in the Fox Valley area. She will be seeing patients of all ages in our Bayview, Franklin and Milwaukee-area clinics.

Dr. James Franks joined Great Lakes Dermatology in September 2011. Board-certified in Dermatology and Mohs micrographic surgery, Dr. Franks will be seeing patients in our Franklin and Racine-area clinics.

After graduating with a Bachelors of Arts in Chemistry from Florida Atlantic University, Dr. Franks then earned his Doctor of Osteopathic Medicine degree at Kansas City College of Osteopathic Medicine in 1972. Dr. Franks was an ER Physician at North West General Hospital in Milwaukee from 1972-1975 and also was a resident in Dermatology at the Marshfield Clinic. He also trained alongside Dr. Frederic Mohs, who developed the Mohs micrographic surgery technique. For the past 30 years Dr. Franks has owned and operated his own dermatology practice in Palm Beach Gardens, Florida. Dr. Franks has over 30 years of treating dermatology patients of all ages.

Dr. Franks' professional affiliations include the American Osteopathic College of Dermatology, American Academy of Dermatology and the American Society of Dermatologic Surgery. In addition, he is also a past president of the Palm Beach County Dermatology Society and he was also awarded five United States patents form 1991-1999.

Dr. John Ratz, a board-certified dermatologist and fellowship-trained Mohs surgeon, joined GLD in January of 2012. After receiving his Bachelors of Science in Biology, Dr. Ratz completed medical school at Case Western Reserve University. He completed his residency at The Cleveland Clinic Foundation and his fellowship in dermatologic surgery and oncology at The Cleveland Clinic.  Dr. Ratz also received his MBA (Masters in Business Administration) from Auburn University in 2001. For the past seven years, Dr. Ratz has worked as an independent contractor for various medical institutions. Prior to that he was a professor/director at the Dermatologic Surgery Section of Dermatology at the Medical College of Georgia.  Dr. Ratz sees patients in the Franklin and Racine clinics.

Dr. Gary Barsky, a board-certified dermatologist, began his career at GLD in February of 2012 and sees patients in our Pleasant Prairie clinic.  Upon receiving his undergraduate degree from the University of Illinois Champaign-Urbana, Dr. Barksy went on to complete medical school and his residency in dermatology at the University of Illinois - Chicago. Following his residency, he went into private practice with Barsky Dermatology in Oak Brook. Over the course of his career, his practice opened several offices in the greater Chicagoland area. Dr. Barsky's family has a strong passion for dermatology as his father and sister are both dermatologists.  He is a member of the American Academy of Dermatology and the American Society of Dermatologic Surgery.