All our professionals maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in the medical field. Read on to learn more about our staff's experience and training.

David Kessler, D.O., FAOCD

David Kessler, D.O., F.A.O.C.D.

AAD Fellow American Academy of Dermatology

Dr. Kessler is board certified and is a fellow of the American Osteopathic College of Dermatology and the American Academy of Dermatology. He is an Adjunct Clinical Assistant Professor of Medicine at the NYIT College of Osteopathic Medicine. Dr. Kessler was awarded the National Psoriasis Foundation’s Professional Volunteer of the Year. Dr. Kessler treats patients of all ages. His special interests include psoriasis, eczema and the diagnosis and treatment of skin cancers. Dr. Kessler’s philosophy follows that of Dr. Francis Peabody, “for the secret of the care of the patient is in caring for the patient”.

Todd R. Coven, M.D., FAAD, FACMS

Todd R. Coven, M.D., F.A.A.D., F.A.C.M.S.

Dr. Coven is Board-Certified in Dermatology and Fellowship-Trained in Mohs Surgery. His practice is limited to Mohs Micrographic Cancer Surgery.

After graduating from Jefferson Medical College, Dr. Coven completed his internship at Lenox Hill Hospital, followed by a Dermatology Research Fellowship at Rockefeller University in New York City. He completed his Dermatology residency at New York Presbyterian Hospital – Cornell Medical Center. Dr. Coven was trained in Mohs surgery by an American College of Mohs Surgery sponsored fellowship under Dr. Deborah Sarnoff, affiliated with New York University School of Medicine.

Kimberly Cossaro, PA-C

Kimberly Cossaro, PA-C

Kimberly Cossaro, PA-C, is a Board Certified Physician Assistant. Kimberly graduated St. Johns University, Magna cum laude in 2003. She is an adjunct professor of Dermatology and clinical preceptor at Hofstra University, Stony Brook University and Pace University Physician Assistant programs. She has specialized training in advanced surgical closures including skin flaps and grafts.

She is the former President of the New York State Society of Dermatology Physician Assistants (NYSSDPA) and a current member of Society of Dermatology Physician Assistants (SDPA). Kimberly specializes in general and surgical dermatology with a special interest in skin cancers.

  • David Kessler, D.O., F.A.O.C.D., F.A.A.D.

    Hailing from North Massapequa, Dr. Kessler has been in practice for over 25 years. In his free time, Dr. Kessler enjoys skiing, sailing and photography.

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Massapequa Dermatology, PLLC


9:00 am-7:00 pm


9:00 am-7:00 pm


9:00 am-7:00 pm


9:00 am-7:00 pm


9:00 am-4:00 pm