Harker Heights

Brooke Black, MSN, APRN, FNP-BC, is a Family Nurse Practitioner at Wellstone Health Partners Ear, Nose and Throat clinic in Harker Heights, Texas.

Jeffery Spivey, MPAS, PA-C, is a certified physician assistant who specializes in orthopedic care. Prior to joining Wellstone Health Partners, he cared for patients at Carl R. Darnall Army Medical Center for 18 years.

Sheryl Mellette, MS, CCC-A, is a licensed clinical audiologist at Wellstone Health Partners in Harker Heights, Texas.

Sheryl has cared for patients throughout Texas for over 30 years. She evaluates and fits state-of-art amplification devices and performs otoacoustic emissions evaluations. Sheryl is a competent and caring provider who cares for patients in all stages of life.

Sheryl’s education and affiliations include:

Joseph Cohn, MD, FAAOS is an orthopedic surgeon at Wellstone Health Partners in Harker Heights, Texas.

Dr. Cohn has cared for patients throughout Texas for over 20 years. Dr. Cohn specializes in general orthopedics with a focus in the management of shoulder, hip, knee, and ankle disorders as well as long bone and periarticular fracture treatment. He is dedicated to pursing excellence through evidence-based medicine and clear communication with patients.

Dr. Cohn’s education and affiliations include:

Dallas Peterson, M.D., is a board-certified family medicine physician at Wellstone Health Partners in Harker Heights, Texas.  

Aaron Russell, MD is a general surgeon who performs general surgery procedures such as gallbladders, appendectomies, hernias, colonic surgery and upper/lower endoscopy.

Dr. Russell graduated from the University of Texas Medical School at Houston in 2013 and completed his general surgery residency at Texas A&M University in Temple, Texas. Prior to going to becoming a physician, Dr. Russell worked in engineering at companies involved in research and development, some of which were working on medical advancements.

Sabastine Aghaziem is a certified Family Nurse Practitioner specializing in Gastroenterology. He has been serving the Central Texas community for more than seven years.  He earned his medical degrees from the University of Texas Medical Branch and an undergraduate degree from the University of Maiduguri in Nigeria.

Sabastine is pleased to provide care for those with a wide variety of GI disorders, with an additional focus on colon cancer screening, irritable bowel syndrome and inflammatory bowel disease.

Sabastine welcomes new patients and accepts most insurance plans.

Hassan Asghar, DO is a primary care physician practicing Internal Medicine. He helps patients with concerns that range from complex issues involving multiple organs to preventative screenings and answers to healthcare questions. As a strong believer in patient-centered care, he provides patients with up-to-date clinical recommendations allowing patients to make informed decisions about their own health.

Evon Hill, FNP offers specialized comprehensive care of adult and pediatric urology patients. Her practice includes care ranging from incontinence and urinary problems in both men and women, erectile dysfunction, enlarged prostate, interstitial cystitis, and other common diseases of the urinary tract.