The Team

Caring, confident, charismatic, and competent are just a few adjectives that have been used to describe Dr. Rehman.  Dr. Rehman has been practicing medicine for more than twenty years and only grows more passionate about his responsibility to meet the needs of every one of his patients.

Dr. Rehman graduated from medical school in 1997 and trained at Brookdale University Hospital in New York where he served as Chief Resident before completing his internal medicine residency in 2003.  Soon thereafter, he became board certified in internal medicine and has maintained his board certification through the American Board of Internal Medicine.  In search of new opportunities, Dr. Rehman moved to Orlando, Florida, joining AdventHealth East Orlando (formerly Florida Hospital), where he began building the hospitalist practice he owns and operates today, including more than twenty physicians and nurse practitioners.  

Over the years, Dr. Rehman has held multiple positions including Medical Director, Co-chair of Patient Safety and Quality Committee, and Chairman of the Hospitalist Committee.  He is currently the Assistant Chief of Medical Staff.

When he is not working, Dr. Rehman relishes time with his wife and son, traveling near and far, attending concerts, and hiking.  He also enjoys reminiscing with his best med school buddies who remain scattered throughout the states.

Tobias Keene, D.D.S.Hailing from Richmond, Virginia, Dr. Tobias Keene brings a bit of unabashed Southern hospitality to all his patients. He moved to Washington, D.C. over thirty years ago as a freshman at Ivy College. Right after graduation, he att…

Arshad Rehman, MD

Kimberly Bertot, APRN

Kimberly Bertot is a highly energetic nurse practitioner with a remarkable career spanning over a decade in internal medicine and acute care. Graduating with a masters of science in nursing from the University of Central Florida, Kimberly quickly found her niche in the hospital setting, where she excelled in her assessment skills, treatment plans, and overall patient care. Prior to her current role as an internal medicine and Hospitalist nurse practitioner, Kimberly spent several years as an ED nurse, gaining invaluable experience. Outside of her professional life, Kimberly finds joy in her hobbies, which include soccer, skiing, and being active. She is also a dedicated mother to two children and loving wife to her supportive husband. Kimberly remains committed to providing exceptional care to her patients and finding balance in her personal life.

Haris Sayeed is a family nurse practitioner, board certified by the American Academy of Nurse Practitioners (AANP) and licensed by the state of Florida. He has a Bachelors of Science in Nursing , a Bachelors of Science in Biology, and a Masters of Science in Nursing. Haris practiced as a Registered Nurse (RN) in a multi-system ICU, Emergency Department, and Bone marrow transplant unit. As a nurse practitioner, Haris practiced for over 4 years in Asthma, Allergy, and Immunology and received direct training from a board certified Allergist/Immunologist. Haris strives to help patients improve their quality of life through good health practices.

Haris Sayeed, APRN, FNP-C

Roseline Nkoronye, DNP, MSN/Ed, APRN, AGACNP-BC

Dr. Nkoronye is an Adult Gerontology Acute Care Nurse Practitioner. She is a hospitalist in internal medicine with one of the largest hospitals in Florida. She is an adjunct clinical instructor at Advent Health University and an American Heart Association Certified instructor for ACLS, BLS, PALS, Heartsaver CPR AED/First Aid. She is a Certified Health Coach and currently Chair/Editor for the National Association of Nigerian Nurses in North America Newsletter (NANNNA). She is very hardworking, passionate, and happy to serve and care for humanity.