At Optimum Neurology, we want our patients to live their most complete lives. We realize that neurological conditions can be disabling and want to help.

If you have been recently diagnosed with a neurological condition, are looking for a fresh take on your disease and its treatment, or have noticed new or worsening symptoms, contact  David S. Tabby, D.O., at Optimum Neurology for a consultation.

At Optimum Neurology, we want our patients to live their most complete lives.

Neurological conditions can be disabling. From physical symptoms like tremors or weakness to cognitive symptoms like memory loss and fatigue, patients come to Optimum with a wide range of complaints.

David S. Tabby, D.O., with the help of Ashley Cohen, R.N., B.S.N., provides patients with the care they need to stabilize their disease or find a new, healthier treatment. We take pride in offering the most modern and up to date treatments as we approach each patient’s condition and symptoms with a whole-patient approach. Many neurological conditions can be triggered or worsened by lifestyle factors; we help our patients understand what daily living items can be adjusted to improve their functioning.

If you have been recently diagnosed with a neurological condition, are looking for a fresh take on your disease and its treatment, or have noticed new or worsening symptoms, contact David S. Tabby, D.O., at Optimum Neurology for a consultation.


 Ashley Cohen

Ashley Cohen, RN, BSN

Ashley Lyn Cohen attended Lafayette College, where she was a Division One swimmer. She graduated with a Bachelor of Science in Biochemistry in May 2007. After graduation, she worked as a chemist but decided to take a different career path. She became a volunteer EMT in 2009 which led her to discover her true calling. She earned her second bachelor of science degree from Neumann University in Nursing in December 2013. She is a member of the American Nurses Association and the Pennsylvania State Nurses Association. Prior to infusion nursing, she worked as an RN at Phoenixville Hospital and the Rothman Institute. She is a wife and a mother of two daughters. She and her husband enjoy traveling and in her spare time she enjoys kick boxing and is a certified exercise instructor.

Ashley’s nursing philosophy is based on providing high-quality, evidenced-based and collaborative care while maintaining an environment of confidentiality, compassion and empathy in the infusion suite. She feels strongly that patients are their own best advocates and need to be active participants in their healthcare plan. She will do her best to support her patients through the infusion process.


Dawn Jackson and Elizabeth Ortiz are our Patient Care Associates.

David S. Tabby, D.O., founded Optimum Neurology with an eye towards improving patient outcomes in multiple sclerosis and chronic migraine. He grew up in a family of medical professionals and has practiced in the Philadelphia area throughout his career.

Born in Philadelphia and raised in Wyncote, David Tabby’s grandfather was a pharmacist, and his father was a family physician. At Princeton University, David Tabby majored in Neurobiology and behavior which influenced his choice of medical specialty.

David S. Tabby, D.O., graduated from the Philadelphia College of Osteopathic Medicine, then went on to complete a neurology residency at Thomas Jefferson University Hospital. He is licensed as a Pennsylvania Osteopathic Physician and has board certifications from the American Board of Psychiatry and Neurology, and the American Osteopathic Board of Neurology & Psychiatry.

After many years as an Associate Professor and researcher, during which time he published many peer-reviewed journal articles and a book chapter. David S. Tabby, D.O., entered private practice in 2014. He has four children and two grandchildren.

David S. Tabby, D.O., has received numerous awards and recognition for his work as a teacher and Neurologist. From the Golden Apple award to being named a Top 10 Doctor, he was also elected to the National MS Society Health Volunteer Hall of Fame.

At Optimum Neurology, David S. Tabby, D.O., uses his years of experience and research in the field of Neurobiology to help his patients achieve their optimum health.

Elizabeth Ortiz
Patient Care Associate