Skip to main content

Our Team at Professional Research Center

Principal Investigators

Dr. Jorge L. Posada, M.D
Board Certified, Nephrology

Dr. Posada is a Board-Certified Physician in Internal Medicine with Sub-Specialty in Nephrology, Hypertension, and transplant medicine kidney and Pancreas. Working since 2009 as a Private Practitioner in Miami, FL.

Dr. Laura De Bien, M.D.

Doctor De Bien has been a doctor since 1990. ASSMCA/ DEA Certified. Principal Investigator since 2015. Private practice in Miami, FL since 2012. Good Clinical Practice and FDA regulations.

Dr. Alberto I. Rando, M.D.
Board Certified, Internal Medicine

Medical Doctor with more than 20 years if experience providing medical care for Adult and Geriatric populations. Fully knowledgeable of Good Clinical Practice and FDA regulations.

Dr. Luis C. Quintero, M.D.
Board Certified, Endocrinology

Board Certified in Internal Medicine and Endocrinology. Providing medical care since 1986 as a Private Practitioner and Hospitalist in Miami, FL. Principal Investigator for over 17 years.

Dr. Miguel Sanchez, M.D
Board Certified, Internal Medicine

Dr. Miguel Sanchez has been in medicine field since the early 1990’s. He loves giving back to the community and really enjoys research.

Dr. Lorena A. Tinoco, OBGYN-MD FACOG, NCMP, Board Certified, Gynecology

Dr Lorena A. Tinoco, OBGYN MD, is a Menopause specialist board Certified, by the American Board of Obstetrics and Gynecology. Principal Investigator, GCP Certified.

Dr. Maray Rocher, M.D.
Board Certified, Internal Medicine

Dr. Rocher has been conducting clinical research for over 15 years as a Principal investigator. Private Practice since 2009, Hospitalist at Palmetto General Hospital, Hialeah Hospital, and Promise Hospital. She has multiple publications in her CV and enjoys the clinical research field.

Dr. Juan C Sarol, M.D.
Board Certified, Gastroenterology

Dr. Salor has over 40 years of experience, providing medical care for adult and geriatric populations. Board Certified in Internal Medicine and Gastroenterology. Working since 2009 as a Private Practitioner in the State of Florida. Principal Investigator for over 15 years.

Dr. Reinier Mederos, M.D.
Board Certified, General Pediatrics

Medical Doctor Pediatrician with 27 years of experience. Board Certified. Hospitalist at Nicklaus Children Hospital. Principal Investigator. Fully knowledgeable of Good clinical Practice and FDA regulations.

Dr. Raul A. Fernandez, D.O.

Dr Fernandez is an Internal Medicine/ Pulmonary Disease and Critical Care specialist. ACLS/ BLS Certified, Principal Investigator fully knowledgeable of Good Clinical Practice and FDA regulations.

Dr. Francis Crespo, M.D.F.A.C.C.
Board Certified
Interventional Cardiologist

Dr. Crespo, MD is a board-certified cardiologist in Miami, Florida, with 37 years of experience in the medical field. Private practice with an extensive internal database. Dr. Crespo completed his residency at Mount Sinai Medical Center. Principal Investigator. Good Clinical Practice and FDA regulations.

Dr. Gonzalez-Zipse, MD
Board Certified

Dr. Gonzalez- Zipse enjoys participating in the Miami Dade community health fairs, where she has provided glaucoma screenings and education to the general community. Principal Investigator and Sub-Investigator with more than 11 years of experience in clinical trials. Specialized in general Ophthalmology, and glaucoma treatment.

Dr. Brunilda Ducellari, DPM

Dr. Brunilda Ducellari, DPM is a podiatrist specialist in Miami, Florida and has over 19 years of experience in the medical field. She graduated from Barry University / School of Graduate Medical Science in 2004. Dr. Ducellari also speaks Albanian, Greek, Italian and Spanish. Fully knowledgeable of FDA regulations.

Dr. Ramon Moreda, M.D.
Board Certified
Internal Medicine, Rheumatology Specialist

Dr. Ramon Moreda, MD is a rheumatologist in Miami, Florida, and has extensive experience in Osteoporosis & Screening. He has expertise in treating rheumatoid arthritis, arthritis, among other conditions. ECFMG Certified. Working since 1991 as a Private Practitioner in Miami, Florida, and Principal Investigator for over 20 years.

Dr. Jose Carlos Lopez, M.D.
Board Certified, Psychiatry

Over 40 years of experience providing Medical Care for the Adult population. Graduates and trained as a Psychiatry Specialist. Currently working in a Private Medical Practice, and affiliated with Larkin Community Hospital in Miami, Florida.


Martha Diaz, NHA-CPT

Site Director

Alberto Nápoles, BSN

General Manager

Pedro Sanchez, APRN

Sub Investigator

Mayret Padron, PA

Sub Investigator/ Rater

Daniela Stuard, CRC

Lab Tech / Phlebotomist

Waldo Blanco, CCRC

Study Coordinator

Isabel Azon, CRC

Pharmacist Technician

Jose C. Garcia, M.A, CRC

Laboratory Tech / Phlebotomist

Angelo Garcel, CRC

Electronic Data Capture (EDC)

Servio T. Hernandez

Recruiter, SC

Conducting interviews with a participants, communicating with volunteers, face-to-face interactions, and maintaining a database of potential recruits.