New TMJ Patient Portal To access our convenient TMJ Patient Portal, please click here. New Sleep Apnea Patient Portal To access our convenient Sleep Apnea. 1407 N. 8th Street, Suite 101, Sheboygan, WI 53081. M-Tu-Th 8-4:30 Wed 7-3. Phone: (920) 458-8389. Toggle navigation Menu. About Us ..