Meet the Faculty & Staff of the Tampa PA Program

Paul Lawrence has over a decade of experience in healthcare, including work as a Hospitalist/Internal Medicine PA-C in Northeast Tennessee and as a locum tenens Hospitalist in western Maryland. While working clinically full-time, he was an Adjunct Professor at Lincoln Memorial University Harrogate PA Program and worked as a preceptor for multiple PA programs in Northeast Tennessee.

Dr. Lawrence has worked in PA education for the last three years as a full-time Assistant Professor/Principal Faculty, course director in multiple courses, and Faculty Liaison for the program's PA student organization. He is an active member of the American Academy of Physician Assistants (AAPA), the Florida Academy of Physician Assistants (FAPA) as a member of the Faculty Relations Committee, and the Physician Assistant Education Association (PAEA).

Dr. Lawrence received his B.S. in Biology/Pre-Medicine at Northeast Louisiana University. He received his Master of Medical Science (MMS) degree in Physician Assistant Studies and Doctor of Medical Science (DMS) at Lincoln Memorial University. 

Mosha Peters-Harris was born in Opelika, Alabama (AL), and graduated from the University of Alabama at Birmingham with a Bachelor of Science in Natural Science and Mathematics. She obtained her Medical Degree at the University of South Alabama College of Medicine in Mobile, AL. She completed her residency in Internal Medicine at the University of South Alabama Hospitals in Mobile, AL. Dr. Peters-Harris went on to be Chief Medical Resident within the Department of Internal Medicine at University South Alabama Hospitals. She has twenty years of experience in Internal Medicine, with particular interests in health disparities, behavioral health, and women’s health. 

Dr. Peters-Harris has over five years of experience in PA education. She was the founding Medical Director for the University of Maryland Eastern Shore PA Program in 2019. During her time with UMES, she was a very active Principal Faculty member serving as a student advisor being a course director for Clinical Medicine, Clinical Problem Solving, Clinical Clerkship Preparation, Psychiatry, and PANCE Preparation; being the Simulation Coordinator for OSCEs and Summative’s. Dr. Peters-Harris is board-certified by the American Board of Internal Medicine and has been a diplomate since 2008. She is an American College of Physicians and Physician Assistant Education Association member.

Melanie Barriffe recently joined the LMU Tampa PA Program. With over 14 years of experience as a clinical Physician Assistant, she has worked in hospital medicine, primary care, and travel/corporate medicine. She has mentored and precepted students and trained new-hire PAs. Dr. Barriffe has always had a passion for transitioning to an academic career in PA education, and she is excited to have the opportunity to be a part of the faculty and staff at the LMU Tampa PA Program. In her free time, she enjoys spending time at the beach, going on nature hikes, traveling, exploring new places, and teaching children at her church's Bible school.

Sheena D. Brown serves as the Director of Assessment for the LMU-Tampa  Physician Assistant Program. In this role, she spearheads efforts to develop evaluation tools, assess program effectiveness, recommend improvements, and oversee continuous data management, analysis, and reporting. Before transitioning into graduate education, she earned her Ph.D. in Pharmacology, MS in Clinical Research from Emory University, and Bachelor of Science in Biology from Spelman College. Dr. Brown's research focuses on educational disparities and how they are shaped by the intersection of disability status, race, gender, and socioeconomic background. By examining these intersections, she seeks to develop nuanced and effective approaches to promote equity and inclusion in graduate education.

Tasha Corinth is a proud graduate of Nova Southeastern University’s Physician Assistant Program, where she earned her Master of Medical Science in Physician Assistant Studies in 2011. She further pursued academic excellence by completing a Doctor of Medical Science degree with a focus on education at Lincoln Memorial University. She also holds a Bachelor of Arts in Biology with a minor in communication and is an esteemed member of the LMU chapter of the Alpha Chi National College Honor Society.

With over a decade of clinical experience, Dr. Corinth has excelled in Emergency Medicine, Occupational Medicine, and Urgent Care. Her dedication to advancing the profession extends into education, where she has made significant contributions as a physician associate educator in Florida and as a Community Health Aide Instructor, training healthcare providers in rural Alaska.

Outside of her professional endeavors, Dr. Corinth is passionate about exploring the outdoors with her family. She enjoys hiking, mountain biking, and engaging in water activities, finding inspiration and adventure in the diverse landscapes of Florida. 

Danielle Garcia brings over 14 years of diverse clinical and academic experience. A Barry University Miami Shores graduate, she holds a Master of Medical Science degree and has practiced in emergency medicine, interventional pain management, and family medicine.

Professor Garcia's professional accomplishments include serving as a Sub-Investigator for Thermo Fisher Scientific, overseeing 25 clinical trials across various specialties, and acting as an Adjunct Professor at Barry University, where she guided PA students in emergency medicine and clinical skills. She has also contributed extensively to Bay Pines Veterans Hospital veteran healthcare and spearheaded innovative clinical programs at AdventHealth Tampa.

Lindsay LaBree Hans has over 20 years of experience as a Physician Assistant, having earned her degree from Rosalind Franklin University of Medicine and Science. Throughout her career, she has specialized in Emergency Medicine, working in both community emergency departments and at a Level II Trauma Center. In addition, she has more than 15 years of experience in PA education, including teaching courses such as Emergency Medicine and Radiology, and serving as Director of Admissions.

A strong advocate for the PA profession and expanded practice opportunities, Hans serves on the Board of Directors of the Florida Academy of Physician Assistants (FAPA) as the West Central Regional Director.

Her professional interests also extend to Wilderness Medicine. She has trained in the desert Southwest, earning certification in Advanced Wilderness Life Support, and is an active member of the Wilderness Medicine Society. Her passion for global health has taken her abroad, including work at a bush clinic in the Maasai Mara region of Africa.

Hans believes in education grounded in active learning, deep understanding, and meaningful mentorship—with the goal of helping students successfully transition from learners to colleagues. She looks forward to continuing her journey by helping you begin yours.

Deborah Mattson is a highly skilled and certified Physician Assistant, with 31 years of professional experience in the fields of internal medicine, emergency medicine, and pulmonology. Throughout her career, she has demonstrated a steadfast commitment to excellence in patient care and a deep understanding of these critical areas of medicine, making her a well-rounded and respected practitioner. 

In addition to her extensive clinical expertise, Professor Mattson has made significant contributions to academia, holding various teaching and mentoring roles that have shaped and inspired countless future healthcare professionals. Her academic career includes serving as adjunct faculty at Wayne State University, where she played an integral role in educating aspiring medical professionals, and as faculty at South University-Tampa, where she continued to share her wealth of knowledge and practical insights with students. 

Beyond her professional accomplishments, Professor Mattson is driven by a profound passion for education and a genuine desire to prepare the next generation of physician assistants for success. She views teaching not just as a responsibility but as a calling—one that allows her to combine her clinical expertise with her dedication to empowering students. 

As she joins the Tampa campus, Professor Mattson is eager to collaborate with students, sharing her experiences and fostering an engaging and supportive learning environment. She looks forward to guiding them on their journey to becoming competent, compassionate, and confident healthcare providers.

Robert Nadratowski graduated from Albany Medical Center in 2005 with a Master’s degree in Biomedical and PA studies. Clinically, he has worked in Occupational and Environmental Medicine, Urgent Care, Otolaryngology, and Allergy. Professor Nadratowski is passionate about world travel and enjoys meeting people from all backgrounds. He has been on two medical missions to Guatemala, which he found very fulfilling.