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Centerstone Florida Leadership

Melissa Larkin-Skinner, MA, LMHC - Chief Executive Officer

Melissa Larkin-Skinner is the Chief Executive Officer at Centerstone Florida. She is responsible for clinical and fiscal oversight of clinical operations. As a Licensed Mental Health Counselor, she has nearly 25 years of experience in mental health and addictions treatment programs including hospital, outpatient, crisis, community based, forensic and child welfare services. Larkin-Skinner has designed and operated innovative programs to meet community needs such as the Community Action Teams adopted as a statewide model. In August 2016, she received the Florida Alcohol and Drug Abuse Association Administrator of the Year for her work in combating the opioid epidemic in our community.


Sean Gingras - Director of Finance

Sean Gingras, Director of Finance for Centerstone Florida. Centerstone employs over 450 staff who provides care to over 12,000 clients a year including 3,500 children. Centerstone provides $11 million dollars in care each year to uninsured families.

After college, Gingras began as an Audit Intern for a Big Five accounting firm and within three years became an Audit Supervisor at a local firm. In 2007 he became a Certified Public Accountant (CPA). Gingras joined Centerstone as the Director of Finance in early 2010.

Gingras is a current member of the American Institute of CPAs, Florida Institute of CPAs, the Government Finance Officers Association, the Florida Government Finance Officers Association, Healthcare Financial Management Association, and the Manatee Young Professionals. He is also a current Finance Committee member for the Humane Society of Manatee County, Finance Committee member for the Central Florida Behavioral Health Network and a Board member of the Pinnacle Plaza Condo Association.

He studied accounting at both the University of Florida, where he received a Bachelor’s Degree in Accounting and at the University of Central Florida, where he received his Master’s Degree in Accounting.


Ranjay Halder, MD - Medical Director

Ranjan Halder is the Medical Director for Centerstone Florida. He attended Spartan Health Sciences University and completed his residency atEast Tennessee State University (Chief Resident).

Halder holds a fellowship with Palmetto Health/University of South Carolina School of Medicine and his academic appointments include Adjunct Clinical Assistant Professor, Lake Erie College of Osteopathic Medicine. Halder is a member of theAmerican Academy of Child and Adolescent Psychiatry, and the American Society of Addiction Medicine.


Roger Johnson - Senior Vice-President of Medical Services & Managed Care

Roger Johnson has lived in Bradenton, Fla. for over 45 years, and has been employed by Centerstone since 1994. During that time Johnson has worked in many areas of Centerstone, as a Mental Health Technician, Unit Clerk, Accounts Receivable Manager, and Managed Care Contracts Manager.

Johnson has a BS in Business, and currently is working as the Senior Vice-President of Medical Services and Managed Care, where his duties are managing the medical services throughout Centerstone, overseeing the Psychology and Residency Departments, and contract negotiations for our Managed Care contracts. He continues to work on new business projects to extend our services to other areas of our community.


Jessica R. Combs - Vice President of Quality & Corporate Services

Jessica Combs, Vice President of Quality & Corporate Services, has worked for more than 25 years in the not-for-profit landscape, in both Florida and Minnesota.

Prior to moving to Florida in 1999, Combs worked at Tasks Unlimited, a residential treatment facility for the serious and persistently mentally ill in Minneapolis, Minn.. There she helped clients find and maintain employment and assisted them in improving their mental health to keep them out of the hospital and increase their independence. While attending University of Minnesota Morris, she also worked at an assisted living facility, helping clients who were unable to live completely independently, stay in the community and out of more intensive treatment.

After moving to Florida, Combs worked as a case manager at Suncoast Center, and was quickly promoted to Manager of the program. During her 17 years at Suncoast, she was promoted an additional 6 times, ultimately working with the technology side of electronic health record development. This move exposed her to opportunities in the administrative side of not-for-profits, and allowed her to move into quality and compliance roles within the agency.

Combs’ experience as a clinician, and her dedication to improving the lives of people with mental illness, gives her a unique perspective in the best uses of electronic records, quality improvement, and overall agency compliance. Combs often acts as an interpreter between technology and clinical staff, and is able to offer solutions that both parties are able to understand and appreciate.


Catherine C. Wilson, LMHC - Vice President of Hospital Services

Cathy Wilson, Vice President of Hospital Serivces, has been with Centerstone for 10 years. She graduated from University of Florida with a Bachelor’s of Arts degree in Psychology and with double minors in Sociology and Gerontology. Wilson received her Master’s in Mental Health Counseling from Nova Southeastern University. She is a Licensed Mental Health Therapist.

Before coming to work for Centerstone, Wilson worked at the Omega Juvenile Prison, a 50 bed, level 10, maximum security prison for juveniles in Manatee County as a contracted provider with the Manatee County Sheriff’s Office. She was in charge of the mental health and substance abuse treatment of all the juveniles sentenced to the 18-24 month program. Wilson became proficient in treating trauma and provided trauma informed care throughout the juvenile justice system.

Wilson was hired at Centerstone as the Supervisor of Rape Crisis services where she also saw clients. She continued managing Rape Crisis as she took on other departments such as Prevention, Intervention, Children’s Substance Abuse, Children’s Mental Health, Mobile Crisis, Walk-in-Center, Call Center, Homeless Outreach, Family Intervention & Safety, Drug Court, Employee Assistance Programming, and Hospital Services which includes the Addiction Center.

She serves on the Board of Florida Council Against Sexual Violence (FCASV) where she is currently Board President. She was a founding member of the local SART (Sexual Assault Response Team), served on the Trauma Informed Care Workgroup-Circuit 12, received the NOVA Award- Manatee Glens- 2011 given by co-workers, FADAA (Florida Alcohol and Drug Abuse Association) Professional of the Year- 2011 and MCSAC (Manatee County Substance Abuse Coalition) Leadership Legacy Award- 2011.


Debbie Marquis - Executive Office Manager

Debbie Marquis is the Executive Office Manager at Centerstone Florida. Marquis has been with the organization since June, 2008. She had acted as assistant to the CEO for over seven years and continues to serve as the Board Liaison. As of December, 2016, she is working for the Vice President of Business Development focusing on grants and corporate partnerships. 

Marquis is a graduate of Palmetto High in Palmetto, Florida. She is a member of the St. Clare Council of Catholic Women.


Shawny Robey - Vice President of Business Development

Shawny Robey is the Vice President of Business Development at Centerstone. Robey has devoted over 10 years to the primary care and behavioral health fields. She has senior level experience in business development, marketing, public relations, and sales. She has advocated for the uninsured and underinsured to gain further access to healthcare. She also was a top seller of life changing mental health medications while working in the neuroscience division of a major pharmaceutical company.

Robey volunteers in her community though her Executive Board membership in the Bradenton Alumnae Chapter of Delta Sigma Theta Sorority Inc., and through her efforts with the Manatee Young Professionals, and the Manatee Junior League. She was also a charter member of the 1st Class Chapter of the American Business Women’s Association in Bradenton.

Robey is a graduate of the University of Southern Mississippi with a Bachelor’s in Business/Marketing and a Master’s in Communication. She attended Southern Miss on full athletic scholarships for both undergraduate and graduate degree programs. She serves her alma mater as a member of the Southern Miss Alumnae Association.


Charles Whitfield, M.Ed., CLC

Charles Whitfield, M.Ed., is a Certified Life Coach and the Director of Community Care with Centerstone Florida.

He graduated with a Bachelor’s degree in Business Administration and a Master’s degree in Elementary Education from Temple University in Philadelphia.

Charles has been working for Centerstone since 2008, managing multiple programs including the Walk in Center, Homeless Outreach, Family Safety Intervention Program, Children’s Substance Abuse Prevention and Intervention Teams, Community Paramedicine Program and the Employee Assistance Program (EAP).


Jeney Slusser; Director of Advancement

Jeney Slusser currently serves as the Director of Advancement for Centerstone Florida, maintaining particular focus on donor cultivation, special events, employee giving, grant writing and government relations. She has been with Centerstone for four years, first serving as Media Specialist for the organization.

Slusser received her degree from Middle Tennessee State University in Public Relations with a minor in Marketing and Organizational Communication. In her spare time, she enjoys yoga, running, travelling, trying new recipes, coaching her kids’ soccer teams (Violet and August), and occasionally binge watching Netflix.



Board of Directors
Timothy Knowles, Chair
Dr. Jennifer Bencie, Vice-Chair
Rev. James Golden, Secretary
Melissa Larkin-Skinner, CEO
Maritza Solis
Linda Agresta
Nina Marshall
Robert L.Smith
Colleen Thayer
Edward Viltz