Special Interests: Movement Disorders Including Parkinson’s Disease, Tremors and Dystonia; Deep Brain Stimulation (DBS) Surgery; Botulinum toxin injection, using all commercially available toxins (Botox, Xeomin, Dysport, and Myobloc).

Dr. Calegan is a native of South Louisiana. He graduated valedictorian from Woodlawn High School in Baton Rouge, and magna cum laude from Louisiana State University with a degree in Petroleum Engineering.  Dr. Calegan earned his medical degree from Tulane University with honors (Alpha Omega Alpha honor society) in 2001 before leaving Louisiana to complete his neurology residency at the University of Alabama-Birmingham Medical Center where he served as Chief Resident in Neurology from 2004-2005.  Before returning home to practice in Baton Rouge, Dr. Calegan completed a fellowship in Movement Disorders with a heavy emphasis on the treatment of Parkinson’s Disease and cutting-edge treatment options for movement disorders including Deep Brain Stimulation (DBS) and Botulinum Toxin Injection (Botox).  Dr Calegan has extensive experience injecting botulinum toxins for many neurologic conditions including Cervical Dystonia, Blepharospasm, Hemifacial Spasm, Focal Dystonia, Spasticity, Chronic Migraine, and Sialorrhea (drooling). 

Dr. Calegan joined The NeuroMedical Center in 2006, and alongside neurosurgeon Dr. Paul Waguespack, developed Baton Rouge’s first Deep Brain Stimulation Center in 2007 to treat patients with Parkinson’s Disease, essential tremor, and dystonia. The DBS team at The NeuroMedical Center has performed over 400 surgeries for DBS patients.

Dr. Calegan treats all neurologic conditions and has served as the primary investigator for several clinical trials at The NeuroMedical Center.  

Alongside state-of-the-art neurologic care, Dr. Calegan emphasizes what he calls the “Four Pillars of Health — Diet/Nutrition, Exercise, Sleep, and Stress Management” in order to unlock the natural healing powers of the human body.  He believes the combination of pharmaceuticals with optimal diet, exercise, and sleep can result in better outcomes than what pharmaceuticals alone can provide.  This is especially important when treating the devastating effects of neurologic disease. 

Dr. Calegan is an active member of several professional organizations including the American Academy of Neurology and the Movement Disorder Society.

Awards & Honors

  • Vitals Patients’ Choice Award, 2018
  • Compassionate Doctor Recognition, 2018
  • Healthgrades Honor Roll
  • Alpha Omega Alpha Medical Honor Society, 2001

What Dr. Calegan's Patients Say:

I am still pinching myself to be sure today wasn't a dream! Meeting Dr. Calegan was like coming out of the desert the last 27 years seeing my 27 year old daughter and 24 year old son's pediatric neurologist and entering the Promised Land! The secret is out now - I will tell anyone who wants to hear that it is a blessing from God to have a neurologist who knows so much about nutrition!


The NMC staff, NP Savannah, and Dr Calegan go above and beyond in their care! They are polite, kind, efficient, knowledgeable and make sure I understand instructions. As a retired RN I am extremely impressed with Dr Calegan, Savannah as well as all staff. I have already recommended two friends to this Dr and facility. I hope to maintain this Dr/pt relationship for many years and it is definitely worth the drive. Thank you from the bottom of my heart for showing true care!

Patient Review

Dr. Calegan has been great. He has taken the time to listen to my concerns about my health and has made many suggestions. He has helped me tremendously with my migraines.


We absolutely love Dr. Calegan. He is the first Doctor to understand the important role of diet and nutrition play in wellness. We highly recommend him.


Media Center

As Seen on TV: Dr. Calegan Discusses Deep Brain Stimulation (DBS) on WBRZ
Learn more about DBS >

See For Yourself: Incredible Patient Success Stories
View more life-changing transformations>

Lecture Series: Annual Parkinson’s Conference
View Dr. Calegan’s annual updates on Parkinson’s disease  >