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Clinical Trial Staff

Our staff are all certified in CPR, Phlebotomy, IATA, DOT, Good Clinical Practices and all others required by law.

  • Dr. Gregory Wiener is a Board Certified Gastroenterologist/Internist in practice since 1987. He has been published extensively and has given several presentation internationally. He is in private practice, works and teaches at Scripps Mercy Hospital in Chula Vista and is a Voluntary Clinical Assistant Professor in Gastroenterology at UCSD. He has over 12 years experience in Clinical Research, and has been a Principal Investigator in over 26 clinical trials. For research patients, he is available on call to his coordinator at all times, in case a subject has a problem or question she cannot resolve. He performs all endoscopic procedures and is at the cutting edge of management of patients with Digestive/ Gastroenterology disorders. His attitude is relaxed in order to make the patient comfortable in this difficult field of Medicine, and attention and caring for patients are his goals.
  • Dr. Erick Alayo is our Gastroenterology and Internal Medicine Sub Investigator. He is Board Certified in Internal Medicine and Gastroenterology, and has been in clinical practice in Chula Vista, and doing clinical research for 3 years. Read the CV for Dr. Erick Alayo
  • Dr. Reuben Farris, Sub-Investigator and associate physician. Click here to go to Dr. Farris page
  • Trina Taylor Wiener. Registered Nurse.
  • Jessica Kovall PA-C, Sub-Investigator. jkovall@gwresearch.net
  • Judy Barron CRC, Lead Clinical Coordinator. CRC@gwresearch.net. Click here to go to Judy Barron page
  • Geraldine Gervacio RN,CRC. Public Relations and Clinical Sub-Coordinator. PR@gwresearch.net
  • Hector Parra MD, CRC. Clinical Research Coordinator. CRC2@gwresearch.net
  • Ruth Gastelum MD, CRC. Clinical Research Coordinator. CRC3@gwresearch.net
  • Jose Zavala MD, Lab Tech. LabTech@gwresearch.net
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