Athena Patient Portal. View. Location. Pflugerville OBGYN 18900 Limestone Commercial Drive, Suite 600 Pflugerville, TX 78660 Phone: 512-375-3440 Fax: 512-605-3800. Office Hours.Obstetrics‧Contraception‧Gynecology‧Vaginal Rejuvenation‧Office Based Surgery‧Hormone Management.