Executive Staff

Suzanne Gutierrez
Chief Operating Officer

Suzanne Gutierrez heads our Clinical Research Division. She began her career in medicine in 1983, and has extensive experience as a clinician and administrator. For over 15 years, she served as the Clinic Director for Cypress Medical Center, South Florida Affiliated Health and Rehabilitation Center and Cypress Creek Chiropractic Center. She continues to be an outstanding leader in the Infinity Clinical Research organization.

From 2001 until 2010, she served as the Director of Operations for Sunrise Medical Group’s Fort Lauderdale and Pembroke Pines offices. She also worked as a Site Coordinator and Programs Administrator for new medical groups joining Sunrise Medical Group, Inc. Sue is now responsible for the oversight of all Infinity Clinical Research Operations.


Penina Popper
Administrative Coordinator

Penina comes to us with over 20 years of administrative and regulatory experience.  Her background includes advocacy for seniors, program administration, Canadian Customs and Excise enforcement   as well as volunteer recruitment and management.  Her eye for detail has made her a natural for her role in Regulatory and Compliance.  Her compassion and caring nature with patients and organizational skills compliment our team.

Michele Fistel, LPN, CCRC
954-738-1697 ext. 134

Michele Fistel began her research career in 1999, and has a wide range of experience in a myriad of clinical trials in Neurology and Colo-rectal Surgery but also has extensive clinical experience having served as a nurse since 1974.  Michele earned her practical nursing degree from Saint Barnabas Medical Center School of Practical Nursing in Livingston, New Jersey.  

She is ACRP certified and is also trained to perform psychometric assessments for Alzheimer’s, Parkinson’s and MS studies.  We are fortunate to have Michele as part of the Sunrise Neurology team.

Muskaan Ochani, BS, CRC
954-475-8171 ext 134

Muskaan is a recent graduate of Nova Southeastern University with a BS in Biology and has clinical experience in the medical field as a medical assistant, as well as being a certified phlebotomist. She is devoted to helping people in need by volunteering in local community centers as well as mobile medical clinics around the world. Muskaan is delighted to be able to contribute to the mission of enhancing health, lengthening life and reducing the burdens of illness and disability through clinical research. She is a welcome addition to our team.

Becky Nembhard, BS, CRC
Lead Clinical Research Coordinator

Becky Nembhard has worked in the clinical research industry since 1988, with experience ranging from basic science to post-marketing trials. She earned her Bachelor’s Degree in Biology with Minors in Chemistry and Psychology from Middle Tennessee State University. As an Independent Clinical Research Associate for a major Contract Research Organization, and as a consultant with over 17 years of research experience, Becky has served in many capacities and has expertise in numerous therapeutic areas.


Jorge Riveros, FMG, CCRC
Clinical Research Coordinator

Jorge Riveros brings extensive experience to Infinity Clinical Research having conducted clinical trials in phases I to IV. Jorge is a foreign medical graduate and earned his Doctor of Medicine degree from Juan N. Corpas Medical School in Colombia. There he worked as a physician for over 10 years in private practice and served as a medical director for several HMO’s in Colombia. Jorge is a Certified Clinical Research Coordinator, and is also trained as a Clinical Rater for Alzheimer’s and Parkinson’s disease studies.

He has worked as a Senior Clinical Research Coordinator and Research Manager in the areas of Neurology, Psychiatry, Cancer, Cardiology and Gastroenterology. We are very fortunate to have Jorge with his specialized background and skills as a Clinical Coordinator in our Hollywood Neurology research site.


Lucy Vargas, RMA, CRC
Clinical Research Coordinator

Lucy Vargas has extensive experience in all phases of research and in many clinical indications.  She earned her Occupational Associates Degree in Medical Laboratory Technology in 1988 from Eastern Technical School in New York City and began her research career at that time.

She went on to obtain training and become a Registered Medical Assistant in 2002 earning her certification from the National School of Technology.