After attending the Arnold and Marie Schwartz College of Pharmacy of Long Island University, Dr. Markinson attended and is a 1981 graduate of the New York College of Podiatric Medicine. He completed a Podiatric surgical residency at the New York College of Podiatric Medicine and affiliated hospitals in 1982, after which he trained as a Fellow in Podiatric Medicine at the same institution, ending in June 1983. That program focused on dermatologic, rheumatologic, and diabetic foot disorders. He then received an academic appointment at his alma mater, where he currently is an adjunct Professor in the Department of Podiatric Medicine. He started a private practice in Brooklyn, New York, in 1984. He was Board Certified by the American Board of Podiatric Medicine in 1989 and voluntarily completed the re-certification process in 2003 and 2013.

From 1993 to 1995, Dr. Markinson received additional training in Podiatric Pathology at the University of Medicine and Dentistry of New Jersey, in the Dermatopathology Division, under the direction of W. Clark Lambert, MD, Ph.D. He then started the Podiatric Pathology service at the Mount Sinai Medical Center in New York City.

He is a Fellow of the American Society of Podiatric Dermatology and was elected President of that organization in December 2003, his term ending in September 2005. In 2004, Dr. Markinson began serving on the Board of the Council for Nail Disorders. He still serves in that capacity.

In 1999, he joined the full-time faculty practice at the Leni and Peter W. May Department of Orthopedic Surgery of the Icahn School of Medicine as the Chief of Podiatric Medicine and Surgery, where he holds the rank of Associate Professor. He is also a team member of the Skin Cancer and Melanoma Unit of the Tisch Cancer Center at Mount Sinai.

Dr. Markinson’s special areas of interest are podiatric skin diseases and tumors, including early diagnosis of pedal melanoma and fungal diseases of the skin and nails, pedal dermatitis, and soft tissue masses.