7510 North Beach Street Fort Worth, TX | 817-498-1818


  • Doctor David Simonak DO
  • Carla Dahms FNP-BC
  • Nurse Practioner Robin Sustala APRN
  • PA-C Jake Duncan
  • Office Staff

Our Providers

Doctor David Simonak, DO


Dr. Simonak is board certified by the American Osteopathic Board of Family Practice and has been practicing medicine in Summerfields/Fort Worth for over twenty seven years. He received his undergraduate degree in Biology with Highest Honors from Lamar University in Beaumont, Texas and medical degree from the Texas College of Osteopathic Medicine/University of North Texas Health Science Center.  He completed his Family Medicine training at Ohio University, Doctors Hospital.
Dr. Simonak enjoys the challenge of medicine and impacting the lives of his patients. He and his wife have three grown boys: Dr. Ryan Simonak, Family Medicine Resident (who will join his father at Fossil Creek Family Medical Center), Brady (attending medical school at TCOM/UNTHSC), and Reese (a premed student at Oklahoma University). He enjoys watching sports, hunting, fishing, traveling, playing guitar, and spending time with family and friends. He is an active member of Good Shepherd Catholic Church.
Work Address:
7510 North Beach Street
Fort Worth, TX 76137
University of North Texas Health Science Center, June 1982 Graduate
Family Medicine Training Doctors Hospital/Ohio University, Columbus, OH
Licensure and Board Certification:
AOA Board Certified Family Practice
Hospital Appointments:
North Hills Hospital, General Medical Staff
Tarrant County Medical Society
American Osteopathic Association
Texas Medical Association
American College of Family Physicians
Awards and Honors:
Outstanding Young Men in America
Southlake Senior High School Football Team Physician
Nolan Catholic High School Team Physician
Associate Professor Family Medicine Department UNTHSC/TCOM 1988-Present

Carla Dahms, FNP-BC


Carla was born in Long Beach, CA. She joined the US Air Force in 1988 where she spent four years working in Microbiology at Carswell AFB. She then went on to attain her Bachelor’s and Master’s degree in Nursing at the University of Texas at Arlington. While in school, she was a nurse in the Neonatal intensive Care unit. After graduation she has spent time working in Internal Medicine, Urology, and Family Medicine.
Carla enjoys working together with patients to help educate and motivate them to develop healthier lifestyles.
Carla married her high school sweetheart and has two beautiful girls, Sarah and Hope. She enjoys playing and watching hockey, music, and of course shopping. She owes all her blessings to the Lord Jesus who gives her strength through all life’s ups and downs.

Nurse Practioner Robin Sustala, APRN

We welcomed Robin Sustala, APRN to our practice on November 18, 2013. Robin was born in Waco, TX and grew up in Garden City, KS. She obtained her Associate Degree of Nursing at Garden City Community College and went on to obtain her Bachelors of Science in Nursing at Kansas Neuman University.  After woring in ICU and as a nursing instructor, she completed her Nurse Practitioner requirements at the University of Kansas Medical Center.

Robin views nursing as a way to help others, but als help herself.  Nursing is an ever learning profession. Not just book learning, but primarily what we learn from our patients.

Robin has an eight year old son and together they enjoy reading, biking, and anything to do with Science.

PA-C Jake Duncan

We welcomed Jake Duncan, PA-C to our practice on December 2, 2013. Jake is relocating from Ohio to Texas where he was born and has family and friends. Jake has spent the last year practicing at an Urgent Care facility in Indiana and is excited to be a part of caring for our patients here in the Fort Worth area. Jake attended the Physician Assistant program at Trevecca Nazarene University where he graduated in August, 2012. We believe Jake will be a great asset to our practice and are looking forward to having a long term relationship with him.

Office Staff

Dr. Simonak is blessed to have an AWESOME staff!  You will find knowledgeable, competent, and friendly people from the time you are greeted until you check out!!!  We know your visit  will be a positive experience!!!  Thanks for allowing us to engage in your health care needs!!!