Eastside Behavioral Health Associates; Eastside Primary Care; Gwinnett Gynecology and Maternity ... Patient Portal Support; Online Bill Pay; Health Tips; Contact Us; Directions; Health Portal; Pay My Bill ... Enhanced Safety. Gwinnett Gynecology and Maternity 1800 Tree Ln, Suite 300 Snellville, GA 30078. Phone: (770) 972-6464 Contact Us ....