Office Locations 10 West Main Street Holmdel, NJ 07733 (732) 946-4333 776 Navesink River Road Red Bank, NJ 07701 (732) 291-4085 Doctor Sobel also maintains a close relationship with Eschen Prosthetics and Orthotics. Based at the Hospital for Special Surgery in Manhattan, Eschen is the finest P&O laboratory in the country.