About Us
At Southold Family Medicine, we specialize in family, adolescent and addiction medicine. Our network of community-based physicians work closely with the experts at Stony Brook Medicine, affiliate community hospitals and other medical professionals to enhance the coordination of the medical care we provide to each and every patient in the communities we all serve.
Physician & Staff
Dr. Pachter specializes in family medicine and addiction medicine and has been providing comprehensive, compassionate care to the Southold community since 2010. He is dedicated to expanding access to high-quality primary and specialty care on the North Fork and throughout Suffolk County, with a strong commitment to supporting patients and families affected by addiction.
He attended medical school at the University of New England College of Osteopathic Medicine and completed his residency at Plainview Hospital, where he served as chief resident in his final year.

Nisha Ghayalod, MD, is a board-certified physician specializing in family medicine and addiction medicine. Growing up on Eastern Long Island, she developed a deep connection to the North Fork community, which continues to inspire her work today. With a special focus on addiction medicine, she is dedicated to advocating for individuals living with substance use disorders and supporting their path to recovery.
Dr. Ghayalod earned her medical degree from St. George’s University School of Medicine in Grenada, West Indies. She completed her residency in family and social medicine at Stony Brook Southampton Hospital, where she served as chief resident. She completed a fellowship in Addiction Medicine with Tufts University at Cambridge Health Alliance, where she also taught and mentored medical students and residents.