John Caswell, M.D.

GMC-Caswell-big-smile-2017.jpgJohn E Caswell, M.D., a Family Practitioner specializes in medical care for newborns, children, adults, and the elderly. Dr. Caswell completed his residency training in family practice in June 2006 at AHEC Northwest Family Practice in Fayetteville, AR. Dr. Caswell received his medical degree from Louisiana State University Health Sciences Center in Shreveport, Louisiana.

Ashish Mathur, M.D.

GMC-Mathur-2017.jpgAshish Mathur, M.D., chose to be a Family Practitioner because he enjoys the diversity of care for all ages and all medical problems.

Dr. Mathur provides medical care for newborns, children, adults, and the elderly in a variety of areas, including wellness exams. Dr. Mathur completed his residency at the University of Oklahoma in Tulsa, Oklahoma, where he served as Chief Resident. He completed his residency training in family medicine in June 2007. He received his medical degree from Universidad Iberoamericana in the Dominican Republic.

Carl Duncan, M.D.

GMC-Duncan.jpgCarl Duncan, MD specializes in a full range of health care services for the entire family.

Dr. Duncan completed his undergraduate studies at Oklahoma Christian University in Edmond, OK. He received his medical degree from Oklahoma University College of Medicine in Oklahoma City, OK.

He completed his residency and internship at the Great Plains Family Practice in Oklahoma City, OK, where he served as Chief Resident.

Catherine Casey, APN

GMC-Casey-2017.jpgCatherine Casey is an Advanced Practice Nurse and board certified Family Nurse Practitioner. She provides medical care for newborns, children, adults and geriatrics in all areas including wellness exams, acute care, chronic care and minor office procedures. She has a special interest in women's health and chronic disease management.

She graduated from the University of Arkansas in 1997 with a Bachelor of Nursing degree and worked as a Registered Nurse until obtaining her Master of Nursing Science degree from the University of Arkansas for Medical Sciences in 2002.