Faculty & Staff

Dr. Joe Weber
DHSc, MPAS, MBA, PA-C, Sr. Chaplain.
Department Chair
& Program Director
Physician Assistant Studies


Mary Jean Leonardi
Associate Clinical Director
& Principal Faculty
Dr. F. Gregory Mappin
Medical Director
& Principal Faculty


Janet Leahy Wilson
Clinical Director
& Principal Faculty


Antonette Montalvo
Adjunct Faculty
Amanda Stevenson-Cali
Academic Director
& Principal Faculty


Andrew Cali
MSPAS, Admissions Director
& Principal Faculty
Josh Tyson
MHA, Metrics &
Quality Analyst


Steering Committee

With 35 years of clinical and administrative experience, board certification in Family Medicine and Geriatrics, and having earned doctoral degrees in Medicine and also in Health Administration from the Medical University of South Carolina and having completed the Fellowship in Integrative Medicine at the Center for Integrative Medicine at the University of Arizona, Dr. Raynal joined Health Integrity, LLC in September 2014.  He brings experienced practical knowledge in organizing and providing health care in the primary care environment. His varied background encompasses clinical patient care, research in the primary care environment, teaching in an academic medical center, and executive leadership in both the private practice and academic environments

After practicing medicine in the local community for 25 years, in 2005 Dr. Raynal joined the faculty of the School of Medicine at the University of South Carolina in the Department of Family and Preventive Medicine.  Then, in 2008 he developed a primary care and integrative medical practice in affiliation with The Cliffs Communities, a multi-centered residential living corporation. More recently prior to joining Health Integrity, LLC, in 2012 he established another community primary care practice in conjunction with Greenville Health System in his hometown of Clinton, SC.

He has been married to his long-term confidant, advisor, and best friend Susan since 1977 and they have two children and three grandchildren.

Formerly the vice president for academic programs at the Council of Independent Colleges in Washington, D.C., Pannell is an award-winning educator and accomplished researcher.

She was honored with the Centennial Teaching Assistant Award at Stanford University while earning her Ph.D. in economics and was the recipient of the DePauw United Methodist Church Exemplary Teaching Award in 2008 during her long tenure at DePauw University in Indiana.

Pannell began teaching in DePauw’s department of economics and management in 1997 and was named the Q.G. Noblitt Professor of Economics in 2008 before serving as the school’s dean of the faculty from 2009-2012. During her tenure at DePauw, she coordinated the Consortium for Faculty Diversity at Liberal Arts Colleges, leading efforts to increase pre- and post-doctoral fellowships for diverse graduate students interested in academic careers at liberal arts colleges.

In 2013, Pannell joined the administration at Agnes Scott College in Decatur, Ga., as the associate vice president for academic affairs and associate dean of the faculty. She received a promotion to vice president for academic affairs in 2015, serving there until 2019, when she joined the Council of Independent Colleges as an administrator.

Throughout her career, Pannell has championed diversity in academia. She continues to teach and do research on economic pedagogy. She also writes on issues of higher education, immigration, and the liberal arts.

Pannell is a magna cum laude and Phi Beta Kappa graduate of the University of Colorado-Boulder, where she earned both her bachelor’s and master’s degrees in economics. In addition to teaching at her alma mater, she also taught at Bowdoin College and the Kiev Polytechnic Institute.

Pannell and her husband, David Worthington, DePauw University Emeritus Professor of Communication and Theatre, live in Clinton with their four dogs — Boomer, Cooper, Gus, and Max.

Dr. Neal Goodbar is a family medicine doctor in Clinton, South Carolina and is affiliated with GHS Greenville Memorial Hospital. He received his medical degree from Medical University of South Carolina College of Medicine and has been in practice for 6-10 years. He is one of 158 doctors at GHS Greenville Memorial Hospital who specialize in Family Medicine.

Stan Reid is a native of Woodruff, SC, and has lived in Greenville, SC since leaving active service in the U.S. Army in 1991 where he was a Lieutenant Colonel in Medical Corps. Stan served on active duty for 13 years. In his last assignment, he was Chief of Orthopaedic Surgery Service and Director and Chair of the Orthopaedic Surgery Residency Program at Eisenhower Army Medical Center, Ft. Gordon, Georgia. From 1991 through 2007, he continued as a clinical instructor in Orthopedic Surgery and maintained a busy private practice in spine surgery, his subspecialty following his fellowship and research at Vanderbilt University Hospital in Nashville, Tennessee in 1987-88.

Stan is a graduate of Presbyterian College in 1974, where he met his wife, Patricia Lake Reid. They have four adult children, including Jennifer Reid Webb, who graduated from Presbyterian College in 1999. Answering a call to further service, Stan graduated from Princeton Theological Seminary in May 2014 with a Master of Divinity degree. He is an ordained Minister of Word and Sacrament in Foothills Presbytery, serving in transitional ministry for several congregations in the Upstate following his ordination in February 2015. Currently, he is designated supply pastor of Westminster Presbyterian Church in Greenwood, SC. He is Treasurer of Foothills Presbytery since June 2016 and serves on, or leads, several working groups and standing committees in Foothills Presbytery.

Stan has served on the Presbyterian College Board of Trustees since January 2016 and is a member of the Pharmacy School Committee, the Resources Management Committee, and several subcommittees. He is excited to serve on the Steering Committee for the Physicians Assistant School at Presbyterian College.

Marge Anderson was born in Passaic, New Jersey lived in East Orange, NJ, Chicago, Atlanta, Miami and Germantown, TN with her family, until deciding to attend Emory College from 1958 to 1962 where she completed her undergraduate studies and received a BA degree. She trained as a Medical Technologist in California in 1963. She later received her Master’s in Secondary Science Education at Georgia State in 1974 and then completed her Bachelor’s of Medical Science in 1980, now the Physician Assistant Division of the Emory University School of Medicine. After graduating from the Physician Assistant program she worked under the direction of Dr. Travis Meredith in Emory’s Ophthalmology department where due to her extensive lab experience as a medical technologist was able to work with patients and assist in publishing a research paper on the causes of traction retinal detachments. She then worked with Dr. Waldo Powell and later Dr. William C. Wood in the Department of Surgical Oncology with breast cancer patients for 15 years and later with Dr. C. Dan Smith in General Surgery.

After retiring in 2006 Marge has been busy as a very active community volunteer. She currently serves on the Emory College Alumni Board. She also provides scholarships and mentors current Emory students. Marge strives to interact with as many students as possible at Emory, Presbyterian College, and in the various places that she volunteers. She is a true advocate for students and has the desire to advance and promote the most needed areas in the medical field. This is what led Marge to both support new Physician Assistant Studies Program and to serve on their steering committee.

Marge is also an active member of Peachtree Presbyterian Church in Atlanta, GA where she actively volunteers with local mission projects and has taken international mission trips to Costa Rica and Egypt. She is involved in Presbyterian Women which helps to support Days for Girls that helps young girls in Malawi, Africa to provide personal necessities so that the girls can attend schools and also plans to help provide sewing machines. Marge has two children, two grandchildren and loves to square dance, travel, sing in the church choir and spend time with her husband Richard Oliver, Presbyterian College class of ‘56.

Dr. Tribble joined the Greenwood Genetic Center in 2000 and serves as the Director, Division of Education. In this position, Dr. Tribble is involved in the development of intramural and extramural education programs and curriculum design. The Division provides multiple opportunities in genetics education to various student populations including high school, undergraduate, teaching professionals, the general public and healthcare professionals and students. Dr. Tribble assists in the coordination of the Center’s accredited medical residency and post-doctoral training programs.

Raenota Merrill is a graduate of Mercy College Physician Assistant Program in 1987. After graduation she worked in an internal medicine practice, seeing and managing the care of adult patients. She also worked in a family practice seeing patients of all ages. While retired, Raenota will still fill in for practitioners to continue her love of patient care. Raenota is excited to be on the steering committee and looks forward to contributing to the growth of the program.

Susan Gay is a medical publisher and content strategist with over 25 years experience in medical publishing leadership. Known for her foresight and vision in creating ground-breaking publications, she has published several hundred books, journals, and multi-media products. Many of them are still market leaders today. Her creative imprint can be seen in such pioneering works as the 5-Minute Clinical Consult and the Netter Collection reference works. As Vice President and Publisher at Williams & Wilkins (now Wolters Kluwer Health), Susan was the first clinical publisher to apply branding strategies to a clinical publishing program. Earlier in her career, she was an award-winning editor at Mosby and served as president of the American Medical Publishers Association.

As the digital era began to fundamentally reinvent medicine and health care delivery, Susan created her own firm to focus on multi-channel content creation, create greater brand awareness of professional information products, and help publishers and societies extend their existing portfolios. She has worked with many companies and societies in medical fields including American Medical Association, American Academy of Pediatrics, Sage Publications, Medcases, Springer, MediMedia, LWW, Elsevier, Harcourt Health Sciences, and Thomson-PDR.