Brian Coleman, MD, President

Dr. Brian Coleman is a board-certified, fellowship-trained orthopedic surgeon. He is a diplomate of the American Board of Orthopaedic Surgery and a member of the American Academy of Orthopaedic Surgeons
and American Orthopaedic Foot and Ankle Society. He has been the primary chairman of the foot and ankle section of the National Medical Association since 1996. He has served as one of the team physicians for
Florida Atlantic University (FAU) and is presently team physician for Atlantic Community High School.
He is also an associate professor at FAU's College of Medicine.  Dr. Coleman currently practices with
HCA Florida Atlantis Orthopedics.

Tiffany N. McCalla, MD, Immediate Past President

Dr. Tiffany N. McCalla is a board-certified Emergency Medicine Physician at Good Samaritan Hospital.

She provides care for adult and pediatric patients with acute illnesses or injuries that require immediate medical attention. In addition, she is an advocate of health care in the community and was one of the founding members of a New York sexual assault response team providing compassionate and focused care to survivors of sexual assault which led to an increase in local rape convictions. She has traveled domestically and internationally providing medical care to adults and children with limited access to care. Dr. McCalla has also served previously as TLJMS Membership Committee Co-Chair.


Catherine Lowe, MD, Board Member at-Large

Dr. Catherine Lowe is a board-certified Ophthalmologist in private practice in Palm Beach Gardens. Born and raised in Belle Glade, Dr. Lowe is one of the founding members of TLJMS, helping to re-establish the organization in the early 1990’s after the organization went quiescent.

She has been practicing medicine for more than 40 years. For many years, Dr. Lowe has taken an active role in health and medical issues on the state and local levels. She is a community service powerhouse, frequently serving as a child advocate, mentoring young students, as well as encouraging and nurturing young, talented visual and performing artists throughout the county. Dr. Lowe believes that children are our future, and we have to invest in them if we expect them to have a better way of life.

Karl Michel, DPM, Board Member at-Large

Dr. Karl Michel is an active practicing Foot and Ankle Surgeon at Genesis Foot and Ankle Institute, Inc. He is affiliated with Good Samaritan Medical Center, JFK Medical Center where he is also involved in residency education and training. Dr. Michel is a member of Delta Delta Lambda Chapter of Alpha Phi Alpha Fraternity, Inc. He is also a member in good standing of the American Podiatric Medical Association and the Florida Podiatric Medical Association. As a board member of TLJMS, he is currently serving as Parliamentarian, Health Fair and Health Education Chair.

Arlene Taylor, MD, Treasurer

Arlene Taylor, DO, Secretary; Affiliation: North Palm Family Practice, Palm Beach Gardens, FL

Dr. Arlene Taylor is Board Certified in Family Medicine and has been practicing for 15 years. Dr. Taylor is as an associate Clinical Professor for Nova Southeastern University College of Osteopathic Medicine where she teaches both medical students and residents. Dr. Taylor sits on the Palm Beach Gardens Medical Center Utilization Medical Committee. She is member of the American Osteopathic Association, The American College of Osteopathic Physicians, The American Medical Association, The Florida Osteopathic Medical Association, the Palm Beach Medical Society and the T. Leroy Jefferson Medical Society.

Roger L. Duncan, MD, III, Youth Services Committee Chair & Past-President

A Board-Certified Anesthesiologist, Dr. Roger Duncan has been practicing in Palm Beach County for 20 years. Dr. Duncan has served on several area medical and philanthropic Boards including, the Palm Beach County Medical Society.

He has had a long history of serving citizens in his local community, particularly the medically neglected and socio-economically disadvantaged. Dr. Duncan currently serves TLJMS as board president, historian and community outreach chair.

Dr. Duncan: “Many have come before me and endured unbelievable hardship to afford me opportunities and I have a duty to help others behind me.”

Colette Brown-Graham, MD, Scholarship Committee Chair

Dr. Colette Brown-Graham is board certified in obstetrics and gynecology and is a Diplomate of the National Board of Medical Examiners. In addition to her private practice, she is an advocate for women’s health issues and, in addition to TLJMS, is involved in several community organizations that strive to bring better care to all.

Dr. Brown-Graham served as TLJMS Board President from 2012 to 2014 and has taken a lead role in many TLJMS events and programs. She is currently the Scholarship and Science of Success Committee Chair and also heads up the Healthy Living for Success Program.


Monica Walker, MD, Board Member At-Large

Dr. Monica Walker, T. Leroy Jefferson Medical Society (TLJMS) Chaplain and Membership Chair, is a board-certified physician specializing in Family Medicine who is currently in private practice in Riviera Beach.

She has been a very active member of TLJMS and most recently oversaw the production of our 2020 Business Guide. Dr. Walker also provides support with our youth development and health & wellness programming. Dr. Walker is also one of four physicians who helped to implement a reorganization and resurgence of TLJMS in 1990.


Mr. Grant Johnson, Finance Committee Chair

Grant Johnson is a Financial Advisor with Merrill Lynch Wealth Management and has been in the financial services industry since 2004. Mr. Johnson is the son of a physician, retired pathologist Dr. Gordon Johnson. Grant began his career on the floor of the New York Mercantile Exchange and has traded financial instruments in the U.S. and Europe. He is a graduate of the Wharton School of the University of Pennsylvania, with a B.S. degree in Economics with concentrations in Finance and Legal Studies. Mr. Johnson has served on the Financial Committee for several years with TLJMS.

Patricia Sherron-Burks, MD, Board Member at-Large and Past President

Dr. Patricia Sherron has practiced pediatric cardiology since 1985 in Texas, California and Florida. For seven years she was Director of Pediatric Cardiology for Cigna Health Plans of Southern California. Dr. Sherron has developed a pediatric weight loss program in the West Palm Beach area and is an active member of the T. Leroy Jefferson Medical Society, serving as Chair of the Speaker’s Bureau.

Dr. Michael J.L Smith, Parliamentarian

Dr. Michael J.L. Smith serves as the first Undergraduate & Graduate Diversity Officer reporting to the Dean and full-time Assistant Professor of Public Health for Nova Southeastern University, Dr. Kiran C. Patel College of Osteopathic Medicine. He is a member of the Prince Hall Masonic Order and Order of Eastern Star, “Life-Member” of Kappa Alpha Psi Fraternity, Inc., a member of Golden Key International Honour Society, an honorary member of the National Youth Leadership Forum on Medicine, member of the Palm Beach County FAMU National Alumni Association and currently serves on the Board of Directors for the T. Leroy Jefferson Medical Society of Palm Beach County Florida.

Shenetria Moore, Member at-large

Shenetria Moore is our corporate board member from Vitas Healthcare.  She is highly community connected wirh various organizations such as Delta Sigma Theta WPB Alumnae Chapter- Health Chair, National Coilation of 100 Black Women- WPB Chapter. She has her own marketing, advertising and publishing company SHE Holdings LLC and non-ptofit Shas Community Initiatives,  Inc. Her signature publication Project12 highlights positive black male leadership in PBC and Broward County County. Shenetria is also a US Army Veteran.


Laurel Cole-Dalton, Executive Director

Laurel Dalton serves as Executive Director for T. Leroy Jefferson Medical Society. Dalton originally joined the organization in 2014 and boasts more than a decade of leadership with nonprofit organizations. She has a certificate in nonprofit management from UNLV and she has also served as the Director of Operations for a Federally Qualified Health Center (FQHC) in Nevada. Ms. Dalton holds a BA in Journalism and a Master's degree in Business Administration.