* The Crohn’s and Colitis Foundation’s Eastern Long Island Take Steps Walk will be held at the Riverhead campus of Suffolk County Community College Saturday, Oct. 2, at 3 p.m. Call 1-516-222-5530.
* Dr. Hannah Ortiz, a board-certified gynecologic oncologist, will speak today, Sept. 30, from 6 to 8 p.m. at a free women’s health seminar commemorating Ovarian Cancer Awareness Month at the East End Hotel Indigo in Riverhead. The program is presented by the East End Health Alliance, which includes Eastern Long Island Hospital, Peconic Bay Medical Center and Southampton Hospital. Call 477-5184.
* A geriatric interdisciplinary core conference on Seniors at Risk — What Professionals Need to Know, will be held at Martha Clara Vineyard on Thursday, Oct. 7, 8:30 a.m.-noon. The program is sponsored by Eastern Long Island Hospital Extension of the Long Island Geriatric Education Center. Call Leslie Sinnott at 477-5124.
* A social services information fair, sponsored by the Suffolk County Department of Social Services, will be held at Riverhead Free Library on Monday, Oct. 4, 6-8 p.m. Call 727-3228.