Clinical Leadership | ConvenientMD Urgent Care

Clinical Leadership

Dr. Mark Pundt, Chief Medical Officer

Dr. Mark R. Pundt is the Chief Medical Officer for ConvenientMD Urgent Care. A graduate of the State University of New York (SUNY) Buffalo School of Medicine, Dr. Pundt is certified by the Fellow of the American College of Emergency Physicians and by the American Board of Emergency Physicians.

At ConvenientMD, Dr. Pundt is now leading a team of expert physicians, regional medical directors and medical professionals who deliver the highest quality urgent care that is both affordable and accessible.

Prior to joining ConvenientMD, Dr. Pundt created and operated MASH Urgent Care, one of the most prominent urgent care centers in New York State. As the Chief Executive Officer, Dr. Pundt led the management of and medical teams for seven urgent care centers in Western New York.

While in this role, Dr. Pundt continuously drove collaboration with local hospitals and the broader medical community. This resulted in better resource allocation, improved coordination of care and increased access for patients throughout Western New York, benefiting the entire regional health care system.

In addition to his leadership of and experience with Mash Urgent Care, Dr. Pundt was also Chief Resident in Emergency Medicine at Mt. Sinai Medical Center in Cleveland and a top physician at Millard Fillmore Suburban Hospital in the emergency department.

Personally and professionally, Dr. Pundt is dedicated to ensuring positive customer experiences throughout all health care communities. He is also focused on healthcare price transparency and cost containment. To address a frequent customer concern with late and inaccurate insurance reimbursements, he received specialized training in medical billing and coding and started DocAssist, LLC, a company staffed by certified medical billers and coders as well as clinical consultants to foster a team approach to addressing these issues.

In addition to his professional accomplishments, Dr. Pundt led several initiatives with the SUNY Buffalo School of Medicine to create teaching and research opportunities for residents and medical students. The result of these partnerships has been a continued and significant improvement in quality of care, as well as the community’s access to affordable medical services.

Consistent with the values of ConvenientMD, Dr. Pundt believes in local health care systems and helps to promote medical communities and leading experts, enhancing the quality, affordability and availability of patient care.


Dr. Debra E. Margolis, Regional Medical Director

Dr. Debra E. Margolis, Regional Medical Director, is an invaluable piece of the ConvenientMD puzzle. Dr. Margolis has been practicing medicine for over 15 years. She comes to ConvenientMD from Parkland Urgent Care where she also served as Medical Director. Prior to her role in the urgent care sector, she served for over a decade as a family practitioner.

Dr. Margolis is an award-winning physician (which includes the “Top Doctor” honor from NH Magazine’s People’s Choice poll), who is board-certified with the American Academy of Family Physicians and is a member of Urgent Care Association of America, American Academy of Family Physicians, and NH Osteopathic Association.

“My interest in joining the ConvenientMD team stemmed from a willingness to pursue a career path in urgent care. ConvenientMD offers affordable healthcare to all – something I’m proud to align my practices with. ConvenientMD allows for individuals to easily access healthcare in a system that is overwhelmed with patients and not enough providers. We strive to work with community providers and hospitals to provide the best, collaborative care for the patients. I chose ConvenientMD because of the patient centered approach to urgent care. That’s extremely important to me.”


Dr. Jo Ann Gates, Regional Medical Director

As Regional Medical Director at ConvenientMD, Dr. Jo Ann Gates continually monitors clinical performance to ensure all services and operations comply with regulatory policies and procedures. Dr. Gates assists in developing clinical protocols and performance objectives while also providing direct care to patients as needed. She has been caring for urgent care patients at ConvenientMD for the past two and a half years.

Dr. Gates comes to ConvenientMD from Core Physicians in Exeter/Epping, NH, where she spent six and a half years as a pediatrician providing general medical care and preventative care, as well as caring for pediatric patients at Exeter Hospital. Her tasks there included caring for newborns in the nursery ward, providing care to pediatric inpatients, and consulting on pediatric patients in the emergency department. Prior to her role at Core Physicians, Dr. Gates spent four years providing comprehensive pediatric care for the Hillsborough County Health Department in Tampa, Florida, and also cared for patients at the Emergency Department at All Children’s Hospital.

A recipient of the Edward J. Moore Memorial Prize in Pediatrics from Thomas Jefferson University, Dr. Gates graduated from Connecticut College in 1997 with Phi Beta Kappa and Magna cum laude Honors distinction before eventually getting her doctorate in medicine from Jefferson Medical College in 2002. She completed her residency at the University of Connecticut in 2005. She is a member of the American Academy of Pediatrics, as well as a Helping Babies Breathe certified instructor.


Shannon Sheridan-Geldart MS, PA-C
Regional Medical Director

Shannon Sheridan-Geldart, PA joined ConvenientMD in 2016 as Lead Provider at our Merrimack, NH facility. Her passion for offering the highest quality of care to our patients led to a transition to her current position as Regional Medical Director, in which she provides oversight and direction for implementation of clinical programs and strategies. Shannon effectively engages with clinicians, support staff and administrators on a daily basis to help ensure that our level of care and the overall patient experience are second to none.

Shannon previously served as a Physician Assistant at the Mount Auburn Hospital Emergency Department, a Harvard teaching hospital in Cambridge, MA. From there, she joined the Melrose Wakefield Emergency Department and spent time at their 2 Urgent Care Centers as well as the Emergency Department. She currently serves as the Vice Chair of the Massachusetts Board of Registration of Physician Assistants and is a fellow of the American Academy of Physician Assistants.

Shannon holds a B.S. in Biology (with honors) from Stonehill College in North Easton, MA., as well as a M.S. in Physician Assistant Studies from Northeastern University in Boston, MA.

Shannon Sheridan-Geldart MS, PA-C


Kathleen Morgan, PA-C
Regional Medical Director

Kathleen Morgan, PA-C brings her knowledge and expertise in the field to ConvenientMD as Regional Medical Director. A true leader in all things patient care, her experience in treating a wide variety of medical conditions makes her a crucial part of our team. A former co-researcher for the Children’s National Medical Center Division of Neurosurgery in Washington, D.C., Morgan’s analytical strengths help ensure daily processes at our clinics are operating at peak performance levels, identifying and creating valuable solutions along the way.

Morgan previously served as a physician assistant in the emergency department at Portsmouth Regional Hospital, where she was responsible for evaluating patients, interpreting diagnostic test results and performing a variety of different procedures. Her prior work at the Children’s National Medical Center led to an opportunity to participate in the 2009 Presidential Medical Round Table, where she and five other participants met with President Obama to discuss healthcare policy. She later spent time in Dakar, Senegal, where she worked in a busy, mission-run urban clinic as well as with a medical and dental team from International Medical Relief to set up mobile clinics in two small, remote villages.

Kathleen Morgan holds a B.A. from the University of Notre Dame (where she graduated with honors in Anthropology), as well as an M.S.H.S. from the George Washington University Physician Assistant Program.

Kathleen Morgan PA-C