USF Digestive Diseases & Nutrition
Meet our staff







Jennifer C Teeters, PA
Family Medicine
About

Kevin E Obrien, MD
Internal Medicine
About
Living in crescendo and paying my mentors forward.

Andrew Armstrong, APRN
Internal Medicine
About
I grew up in California and Oregon enjoying beaches and the mountains. After high school I began my medical career in the United States Air Force as a Medic, serving at home and abroad. From there I earned my Bachelor of Nursing degree from the University of South Florida. I practiced as a bedside nurse for 5 years while going back to school to earn my doctoral degree as a Nurse Practitioner, also from USF. I then joined the team hear at USF Internal Medicine and Pediatrics where I have been proudly serving this community since 2020.



Jessica Gordon, APRN
Developmental-Behavioral Pediatrics
This provider is not accepting new patients at this time

This provider is not accepting new patients at this time
Daniel Mathew, MD
Critical Care Medicine
This provider is not accepting new patients at this time

Carolina Martinez, MD
Surgical Oncology
About
Benign Diseases
- Hemorrhoids
- Pelvic, anal and rectal pain
- Rectal prolapse
- Fecal incontinence
- Anal fistulas
- Anal fissures
- Constipation
- Rectal infections/STDs
- Diverticulitis
- Constipation
Cancers
- Colon cancer
- Colon polyps
- Rectal cancer
- Rectal polyps
- Anal cancer
- Anal dysplasia
- Neuroendocrine tumors
- Small bowel cancers
- Appendiceal cancers
- Pelvic tumors/masses
Dr. Martinez is involved in resident and medical student education. She is a member of the American Society of Colon and Rectal Surgeons (ASCRS) as well as the American College of Surgeons (ACS). Dr. Martinez has presented and contributed to book chapters and publications related to robotic surgical techniques, as well as pre- and postcolorectal surgery indications and complications. She has participated in multiple international medical missions over the past 10 years and is fluent in both English and Spanish.
Among the many awards she has received, she is a proud recipient of the National Hispanic Medical Association Outstanding Resident of the Year, Administrative Chief Resident in General Surgery, and Zukowski Humanitarianism Award in General Surgery awards.
This provider is not accepting new patients at this time
This provider is not accepting new patients at this time

Tanya Smith, APRN
Pediatrics
About
Tanya is a Florida native and earned her Bachelor's in Science of Nursing from St. Petersburg College in 2011. She has a wide variety of nursing experience including orthopedics, pediatric cardiology and neurology and emergency medicine. She worked in the Emergency Department at Tampa General Hospital for several years specializing in pediatric emergency care as well as both adult and pediatric trauma care. She has experience as an Advanced Practice Registered Nurse specializing in Allergy, Asthma, and Immunology. Joining USF's Department of General Pediatrics has been her long-term goal and she is honored to be a part of our team. She is looking forward to caring for the kiddos and their families!
This provider is not accepting new patients at this time
This provider is not accepting new patients at this time