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About Us

The Foremost leader in pain management & integrative care in Louisiana
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Our Mission

  • Coordination of care to determine the most suitable treatment options for each patient.
  • Committed to offering our patients all the best options for pain management in one location.
  • Everyone deserves the opportunity to enjoy life in health and wellness.
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We understand that your pain is unique to you.

Our Physicians

Our team of caring, compassionate Physicians are Fellowship Trained and Board Certified.
  • Eric Royster, MD

    Board Certified in Pain Medicine, Anesthesiology & Acupuncture
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    Dr. Royster is the Founder of Integrated Pain and Neuroscience, LLC. His vision was to create an organization that offered the most options for patients suffering from pain under one roof. Dr. Royster received his Bachelor’s Degree in Biology, with a minor in Chemistry, from the University of North Carolina. He then went on to study at the University of Arkansas, where he obtained his degree of Doctor of Medicine in 2003. Following graduation, Dr. Royster moved to New Orleans, LA where he completed an Internship in Internal Medicine at Ochsner Clinic and Hospital. Dr. Royster’s interest in pain medicine developed during his time at Ochsner and he continued there with his Residency in Anesthesiology. He further refined his expertise with a Fellowship in Pain Medicine at the University of New Mexico from July 2007 – June 2008. In August 2008, Dr. Royster returned to New Orleans, where he served as Medical Director of Ochsner Baptist Pain Center and Supervisor of the Residency Chronic Pain Education Program until opening his own practice, Integrated Pain and Neuroscience, in April 2013. Dr. Royster is unique in his published expertise of both spinal cord stimulation and Intrathecal drug delivery. He is the pioneer in peripheral stimulation for headache and facial pain and also has expertise in non-surgical pain therapies. Dr. Royster is the first physician in the area to offer medical acupuncture and minimally invasive lumbar decompression. Dr. Royster is board-certified in acupuncture.
  • Hunter Simpson, MD

    Hunter Simpson, MD graduated from Louisiana State University with a Bachelor of Science degree in Biology in December 2011. Dr. Simpson went on to receive his Doctor of Medicine from the University of Queensland School of Medicine-Ochsner Clinical School in Brisbane, Queensland, Australia and New Orleans (2013 – 2016). Following his studies, Dr. Simpson completed Ochsner Clinic Foundation’s Anesthesiology Residency Program in July 2021 and University of Illinois-Chicago’s Interventional Pain Management Fellowship Program (July 2021 – June 2022) before moving back home to Louisiana and joining Integrated Pain and Neuroscience in October 2022. An avid volunteer who has worked with programs across Louisiana, Dr. Simpson made it a priority to ensure physician anesthesiologists’ presence in the Department of Veterans’ operating rooms through Protect Safe VA Care and served as a resident mentor for Ochsner STAR high school students. Dr. Simpson also worked with the Medical Mission of Peru to establish triage clinics in three different areas of the country to provide medical care for all Peruvians. Dr. Simpson is excited for the opportunity to use his vast expertise to provide the best patient care at IPN.
  • Andrea O’Leary, MD

    Board Certified Adult & Child Psychiatry
    Andrea O’Leary, MD specializes in both adult and child Psychiatry. After receiving her B.A. degree in Psychology from Emory University in Atlanta in 1994, Dr. O’Leary attended Boston University and Georgia State University, graduating with an MD from Mercer University School of Medicine in Macon, GA in 2004, where she was awarded Outstanding Medical Student in Psychiatry. Dr. O’Leary then went to Tulane University School of Medicine, completing their Triple Board Program in Pediatrics, Adult Psychiatry and Child Psychiatry. At Tulane, Dr. O’Leary was the Triple Board Program’s Chief Resident (2007 – 2008) and Co-Chief Resident (2009 – 2010). Professional affiliations include the American Psychiatric Association, the Louisiana Psychiatry Medical Association and the American Academy of Child and Adolescent Psychiatry. Dr. O’Leary worked at Tulane University’s Department of Child and Adolescent Psychiatry from 2010 – 2011. As a child psychiatrist at the Midtown Clinic, Dr. O’Leary provided outpatient child psychiatry and telemedicine services while also supervising the department’s medical students, residents and fellows. From July 2012 – April 2013, Dr. O’Leary provided telemedicine psychiatric services for the State of Louisiana. Dr. O’Leary joined Integrated Pain and Neuroscience in April 2013, and she is excited to use her expertise helping her patients in new ways in pain management.

Patient Portal

Please use the link below to access the IPN patient portal to access your medical records, pay your bill online, or leave a message with a member of our healthcare team.
Patient Portal

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Patient Success Stories

We strive to treat the whole patient, not just the pain.


“Dr. Royster told me on my initial office visit that he was going to take a special interest in my case. Approximately 9 years later, after numerous procedures & office visits, I feel that he has kept his word, due to the personal level of care that I receive at each office visit with him!”


“Dr. Royster is the type of doctor with an impeccable bedside manner. He is a warm, caring man and has a real honest concern about his patients’ well-being.”

Leslie K.

“Dr. Friedman is gentle, kind, and explains everything he is doing and why he is doing it. He has made me into a believer of the benefits of acupuncture and I look forward to my appointments with him.”

Jennifer M.

“Dr Royster is a phenomenal physician. He has a trusting energy. You know his true concern is your well being. We are all individuals and it’s nice that a Dr recognizes this. The staff is warm, knowledgeable and willing to help as well. Thank you I.P.N.”

Lynn K.

“Dr. Royster and Dr. Friedman have both been great in helping me with a variety of things to help with my pain and migraine issues.”

Your experience of our patient care & service matters greatly to us.

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