Our Team

The people who make it happen.

Key Opinion Leaders | CNS mCase Community

Screen Shot 2016-06-16 at 10.20.51 AM

Mark Oppenlander M.D.

Dr. Mark Oppenlander attended the University of Michigan, where he graduated with Highest Distinction and a Bachelor of Science in Cellular and Molecular Biology. He went on to earn his Doctor of Medicine at the University of Michigan Medical School. In 2008, Dr. Oppenlander moved to Phoenix, Arizona where he completed a seven year residency training program in Neurological Surgery at the Barrow Neurological Institute (BNI). He also spent time at Thomas Jefferson University in Philadelphia, where he obtained fellowship training in Complex Spine Surgery. In addition, Dr. Oppenlander was awarded the Royal College of Surgeons of Edinburgh Overseas Training Sponsorship, providing opportunity to travel to London, England for further fellowship training in Complex Spine Surgery and Spinal Oncology at the National Hospital for Neurology and Neurosurgery at Queen Square. To date, Dr. Oppenlander has published over 70 peer-reviewed articles, book chapters, and abstracts, and participated in conferences at the state, national, and international level with multiple invited presentations. He is an active member of the Congress of Neurological Surgeons (CNS) and the American Association of Neurological Surgeons (AANS).


Screen Shot 2016-06-16 at 10.22.08 AM

Theodore Nicholas M.D.

Dr. Nicholas Theodore graduated from Cornell University, where he was the recipient of a Cornell Tradition Academic Fellowship. He attended medical school at Georgetown University, where he graduated with honors. After completing his internship at Bethesda Naval Hospital, Dr. Theodore served as a Senior General Medical Officer with the United States Marine Corps in Okinawa, Japan. Dr. Theodore completed his neurosurgical residency and a fellowship in spinal surgery at Barrow Neurological Institute. After completing his residency in 2001, Dr. Theodore served as chief of the Division of Neurosurgery at Naval Medical Center San Diego, overseeing the largest neurosurgery complement in the Navy. In 2003, he joined the faculty at Barrow Neurological Institute and was selected to lead our neurotrauma program. In 2004 he was appointed associate director of the Neurosurgery Residency Program at Barrow. Barrow’s Residency Program is the largest in the United States and is currently training four residents per academic year, for a potential total of 28 residents. His area of focus includes brain and spinal cord injury, minimally invasive surgery, and robotics.



Screen Shot 2016-06-16 at 10.21.50 AM

Paul Park M.D.

Paul Park, M.D. was born in Los Angeles, CA in 1971. He grew up in southern California and attended the University of California at Los Angeles for college where he earned bachelor and master’s degrees in biology. Dr. Park subsequently obtained a M.D. degree from the University of Michigan. He then pursued a neurosurgical residency at the University of Michigan. Given his interest in the spine, Dr. Park obtained sub-specialty training in complex spinal surgery at the Cleveland Clinic Spine Institute. He then acquired additional training in minimally invasive spinal surgery at the Semmes-Murphey Clinic. After completing his training, Dr. Park accepted a position in the Department of Neurosurgery at the University of Michigan. Dr. Park’s clinical practice encompasses the full spectrum of spinal surgery. However, his main clinical interest is in the surgical treatment of degenerative spinal disorders, spinal trauma, and spinal tumors. His research interest is broad based and includes the impact of minimally invasive spinal surgery on surgical outcomes as well as in the biologics of spine fusion. In addition, he is actively interested in evaluating new spinal instrumentation as they arise.


Screen Shot 2016-06-16 at 10.21.38 AM

Praveen Mummaneni M.D.

Dr. Praveen Mummaneni is a board-certified neurosurgeon at UCSF Medical Center. He is the director of the Cervical Spine Program, the Minimally Invasive Spine Program and the Minimally Invasive and Complex Spine Fellowship Program. He also serves as co-director of UCSF’s Spine Center, as well as professor and vice-chairman of the Department of Neurosurgery.

He specializes in complex cervical spine surgery and in minimally invasive spine surgery for a variety of conditions, including degenerative spinal disease, spinal deformity (scoliosis) and spinal tumors.  He was among the first neurosurgeons to obtain active membership in the Scoliosis Research Society (SRS) and to win the Edgar Dawson Memorial Scholarship and the SRS Traveling Fellowship Award. He serves as chair elect of the American Association of Neurological Surgeons-Congress of Neurological Surgeons Joint Section on Disorders of the Spine and Peripheral Nerves. He is on the editorial board of several journals, including Journal of Neurosurgery: Spine. Mummaneni earned his medical degree at Boston University School of Medicine and completed his residency in neurological surgery at UC San Francisco. His additional training includes a complex spine fellowship at Emory University in Atlanta.


Core Team

Donald Lawrence

Founder & CEO

Don Lawrence is Founder, CEO, and Chairman of the Board of eRounds. He is responsible for the overall strategic direction and team management at eRounds. He has decades of experience in building thriving companies, assembling great teams and executing on strategic visions. Don has spent the past 22-years blending entrepreneurial and corporate ventures working with surgeons in a variety of roles. As principal/founder of Surgical Resource, Inc., Don was responsible for $21m in annual sales while earning three prestigious President’s Council awards. In his last startup venture he was co-founder of Surgical Safety Products, Inc., where he served as Lead Project Developer, VP Sales, and President.

Ron Wadell

Platform Architect

Ron is a technical rock star bringing over 15-years of network security, systems administration, and application architecture & development experience to eRounds. At eRounds, he is responsible for the development of the eRounds platform.
Previous to eRounds, Ron managed key development teams responsible for Snackable Media’s US consumer mobile products within SMS, mobile web, and the traditional web. 
Working with the startup WeatherFlow, Ron led the application development of key “mission critical” weather applications and was responsible for PCI-DSS compliance.

Jackie Meiste

Community Manager

Mrs. Meiste is the General Administrator of the eRounds General public community and will be responsible for the new Private Communities as well. Her main role is Traffic Manager and Project Coordinator among the various teams hired to design and develop eRounds. She serves as the lead social UX coordinator for eRounds and the Product Manager for the company’s interactive learning product line in iBooks. Her most important role however, is tending to her brand new baby girl.

Jackie’s previous experience include business management with Don’s former start-up Surgical Resource, physician recruiting, and sales support for a major small business lobbying group. She earned a Bachelor’s Degree in Business Administration from Belmont University where she graduated Magna Cum Laude. While not eRounding, Jackie spends gobs of time scouring social media and pinning obscure interests.


Blake Burdeen

Chief Technology Officer

Blake is a technophile with over two decades of innovation in software development, systems architecture, and management.  At eRounds, Blake is responsible for the development of the eRounds social collaboration platform. Blake has worked with dynamic Internet start-ups to large corporations including DuPont, Diebold, and Interval International.
Previous to eRounds, he served as CTO for Inteletech Corporation and Secured Financial. While at Nextweb Media. Blake led the development of highly scalable, enterprise-level apps and infrastructure for one of the largest mobile SMS application/content providers in the US, serving millions of users.

Ryan G. Nazar M.D.

Medical Director

Dr. Ryan Nazar is the Medical Director of eRounds, leading our professional education initiatives and learning innovations and research,

Before eRounds, Dr. Nazar graduated Summa Cum Laude from Eckerd College, with Bachelor degrees with high distinction in BioChem and Psychology. He went on to earn his Doctor of Medicine at the University of Kentucky earning High Honors Distinction and national recognition from the American Society of Clinical Pathology in research.

He went on to do an internship in neurosurgery at the University of Toronto and 5 years of neurosurgery residency at the University of Louisville. During his residency he patented a 3-D printed cervical collar (The Align Collar); organized a neurosurgery didactic series (Brain and Spine School); and was awarded the 2016 AANS/CNS joint section award for his research in spinal trauma. To date, Dr. Nazar has published 10 peer-reviewed articles, book chapters, and abstracts, as well as participated in conferences at the national level with presentations.

Prior to eRounds, Dr. Nazar transferred from clinical medicine to health technology and industry. In 2017 he founded SurgeonIDEAS, LLC aimed at medical education, health systems engineering, and rapid prototyping. He is also an adjunct professor at a health professional cadaver lab.