Our Team

Our Team

Catherine C. Grant

Founder/CEO

Catherine is Chief Executive Officer of ExperCARE, a company she co-founded as The Urgent Care Center of Richmond Hill in 2009. An honors graduate of The Medical University of South Carolina with a Master of Science in Physician Assistant Studies, Catherine has more than 20 years of experience in not only urgent care and occupational medicine, but also orthopedics, plastic and reconstructive surgery, and also physical medicine and rehabilitation.

Catherine C. Grant

Founder/CEO

Catherine is Chief Executive Officer of ExperCARE, a company she co-founded as The Urgent Care Center of Richmond Hill in 2009. An honors graduate of The Medical University of South Carolina with a Master of Science in Physician Assistant Studies, Catherine has more than 14 years of experience.

Founder/CEO

Catherine C. Grant

Catherine is Chief Executive Officer of ExperCARE, a company she co-founded as The Urgent Care Center of Richmond Hill in 2009. An honors graduate of The Medical University of South Carolina with a Master of Science in Physician Assistant Studies, Catherine has more than 14 years of experience in not only urgent care and occupational medicine, but also orthopedics, plastic and reconstructive surgery, and also physical medicine and rehabilitation.

Robert A. Mazur, MD

Medical Director

“As a physician who treats both ER and urgent-care cases, I know that the most important thing is having access to the care you need, as quickly as possible and I’m so glad that ExperCARE is able to meet that need while exceeding customer expectations in both Savannah and Richmond Hill.”

Medical Director

Robert A. Mazur, MD

“As a physician who treats both ER and urgent-care cases, I know that the most important thing is having access to the care you need, as quickly as possible and I’m so glad that ExperCARE is able to meet that need while exceeding customer expectations in both Savannah and Richmond Hill.”

J. David Carson, MD

Director of Occupational Medicine

“In 1879, my great-grandfather, John A. G. Carson, started Carson Naval Stores, a turpentine manufacturing business in Savannah; my father was born and raised in Savannah; I was born in Savannah, grew up here, and I’ve raised my family here,” stated Dr. Carson. “Savannah is home to me and always will be.”

Director of Occupational Medicine

J. David Carson, MD

“In 1879, my great-grandfather, John A. G. Carson, started Carson Naval Stores, a turpentine manufacturing business in Savannah; my father was born and raised in Savannah; I was born in Savannah, grew up here, and I’ve raised my family here,” stated Dr. Carson. “Savannah is home to me and always will be.”

Leadership Team

Spencer Gambrell

Vice President of Operations

Gambrell is a dedicated healthcare leader with over 10 years’ experience in the urgent care field, assisting Fast Pace Health with opening over one hundred urgent care clinics in the southeastern United States. Gambrell has a Master of Business Administration from the University of North Alabama, and a B.A. in Leadership and Human Relations from Trevecca Nazarene University.

Kari A. Smith

Chief of Staff

Smith is a solution minded, experienced leader who has a diverse background including business management, non-profit fundraising, and leading mission trips to the Dominican Republic. As Chief of Staff, Kari uses her vast knowledge of everything ExperCARE and her heart for people to serve as an executive leader in our organization.

Katie McNamee

Business Office Manager & Richmond Hill Leader

McNamee, who has worked with ExperCARE since 2017, formerly served as Business Service Coordinator. She holds a M.B.A. focused in healthcare management and credentialed in medical billing and coding from Western Governors University. McNamee uses her extensive education and experience to enhance the business side of ExperCARE while also leading our Richmond Hill team, making sure every day we continue to exceed your expectations and remain first choice for any on-demand healthcare need.

Donna McAllister, PA-C

Mall Boulevard Leader

McAllister, who has worked with ExperCARE since 2014, received her Bachelor of Science degree in Radiologic Sciences from Central Florida and her Master of Science in Physician Assistant Studies from the University of Florida. McAllister formerly worked as a PA with Georgia Lung Associates and North Chattahoochee Family Physicians. Donna is a member of the American Academy of Physician Assistants and Georgia Association of Physician Assistants.

Christina Anthony

Occupational Medicine Coordinator & Downtown Leader

Anthony, who has worked with ExperCARE since 2016, served as a Radiologic Technologist. Anthony received her Associate of Science in Radiography in 2010 and Bachelor of Arts in English Literature in 2013. Christina’s experience includes working at Belleview Orthopedic Center and Wellbeings Occupational Healthcare, as a R.T. and as a Worker’s Comp Coordinator.

Becca Rivera

Marketer

Rivera brings 10+ years of experience in customer engagement and development roles to ExperCARE. Becca has a B.S. in Hospitality Management from the University of Central Florida with a focus in Marketing. She is passionate about making personal connections, finding innovative ways to attract new patients to ExperCARE, and retain existing patients.

Our Providers

Donna S. McAllister, PA-C

Mallory Ann Ledergerber, PA-C

Mary E. McCourt MSN, FNP, BC, CDE

Jessica Tucker, MMSc, PA-C

Katie Gosden, MSN, APRN, FNP-C

Patrick Knorr, MSPAS, PA-C

Hope Sloanhoffer, PA-C

ExperBEAR

“They say that laughter is the best medicine. I love that and I say that hugging must be the second best medicine. That’s why I am so happy and honored to be in charge of all hugging and hugging-related services at all ExperCARE locations and at large.”

Chief Hugging Officer

Chief Hugging Officer

ExperBEAR

“They say that laughter is the best medicine. I love that and I say that hugging must be the second best medicine. That’s why I am so happy and honored to be in charge of all hugging and hugging-related services at all ExperCARE locations and at large.”

ExperCARE is always looking for amazing talent to add to our team.

If you’re at the top of your field and love helping people, we want to hear from you!

ExperCARE is always looking for amazing talent to add to our team.

If you’re at the top of your field and love helping people, we want to hear from you!