Make Appointment

(305) 273 6266


Our Providers



Mark Avila, M.D.

Specialty: Gastroenterology and Hepatology.

Dr. Mark Avila earned his medical degree from Medical College of Wisconsin and proceeded to complete his Residency at Tucson Hospitals Medical Education Program. He obtained a Hepatology Fellowship at the University Of Miami School Of Medicine prior to his Clinical Fellowship in Gastroenterology at the University of Florida. Dr. Avila completed a Masters of Business Administration program at the University of Miami. Dr. Avila is Board Certified in Gastroenterology and has served on the Florida Board of Medicine after his appointment by then Governor Bush. He has been in private practice in Florida since 1994. He is active in clinical trials involving therapy for Hepatitis C and Gastroenterological diseases.

Victor Manuel Piña, M.D.

Specialty: Gastroenterology.

Dr. Victor Piña attended the Universidad Autonoma de Centro America Costa Rica where he earned his medical degree. He then proceeded to complete his Residency training at Columbia University’s St. Luke’s Roosevelt Hospital Center. He completed a Clinical Fellowship in Gastroenterology at the University of Miami in 1992. He was Board Certified in Gastroenterology (1995) and Internal Medicine (1993). Dr. Piña has been in private practice in Miami since 1992 and has been the Chief of Gastroenterology at two local hospitals.


Nurse Practitioners


Luz P. Marin, ARNP

Specialty: Gastroenterology
Luz Marin received her B.S. degree in Nursing and her Advanced Registered Nurse Practitioner degree from Florida International University. She is certified by the American Academy of Nurse Practitioners and is licensed by the State of Florida. Luz Marin has been serving our patients for almost 10 years and works closely with the physicians in managing their patients. She has dedicated her time to our clinic; however has extensive training and privileges at local hospitals.

Kristen Nieves, ARNP

Specialty: Gastroenterology and Hepatology.
Kristen Nieves, ARNP, a native of Miami, received both her Bachelors and Masters of Science in Nursing from Florida International University with Summa Cum Laude honors. During that time, she served as an RN at Mercy Hospital in the Intensive Care Unit where she received recognition as ICU Nurse of the Year and the PACE recognition for Clinical Excellence. It was at Mercy Hospital where she began working and training with Dr. Mark Avila and became interested in Gastroenterology. Since that time, she has worked extensively with our practice managing patients’ various gastroenterology and hepatology diseases.

Suzanne Yong, ARNP

Specialty: Gastroenterology.
Suzanne Yong, ARNP completed her Bachelor of Science in Nursing from University of Miami. Soon afterward, she received her Masters of Science in Nursing from the University of Alabama at Birmingham. She has experience in both pediatric and adult care. Suzanne Yong has traveled and lived abroad extensively in Spain, Germany and Italy by participating in Foreign Exchange study programs. Through this experience, she is fluent in Spanish and Italian. She has graduated with many honors and a member of several local clinical nursing associations. She continues to participate in local non-profit work through her church and Habitat for Humanity. She has recently relocated back to Miami with her husband and children.
           Make Appointment