Dr. Simonak frequently treats Allergic Rhinitis, Pollen Allergy, and Headache. See all procedures and conditions Dr. Simonak treats. Where is Dr. David Simonak, DO's office located? Dr. Simonak's office is located at 7510 N Beach St, Fort Worth, TX 76137. Find other locations and directions on Healthgrades. Does Dr. David Simonak, DO offer ....