District Manager, Long Island

Melissa Sierra

Melissa Sierra oversees the daily operations of our Long Island office, working closely with physicians and staff to ensure a seamless, efficient, and patient-centered experience. With a strong commitment to healthcare excellence, she takes pride in fostering a welcoming environment where patients feel comfortable, respected, and genuinely cared for.

Known for her reliability, attention to detail, and compassionate leadership, Melissa is dedicated to supporting her team, maintaining high standards of service, and ensuring that every patient receives the care and attention they deserve.

Flyer announcing that Gastroenterology Associates of Brooklyn has moved to 2700 Ocean Avenue
Flyer inviting patients to visit the new Gastroenterology Associates of Brooklyn office