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Catherine Peterson, MD, is an endovascular-trained neurosurgeon with advanced expertise in minimally invasive brain and spine procedures. At Inland Neurosurgery Institute, a practice with locations in Pomona and Arcadia, California, Dr. Peterson brings a deep commitment to patient-centered care and innovative neurovascular treatment strategies.

Originally from Moldova, Dr. Peterson immigrated to the U.S. in childhood, where she cultivated a strong work ethic and passion for medicine. She earned her Bachelor of Science in Biology with magna cum laude honors from Purdue and her medical degree from Indiana University School of Medicine. She completed her neurosurgery residency at UC Davis and Detroit Medical Center, followed by a competitive endovascular neurosurgery fellowship at UCLA.

Dr. Peterson specializes in both cranial and spinal neurosurgery, with a particular focus on treating stroke, aneurysms, and complex neurovascular conditions through catheter-based techniques. Her research, including multiple peer-reviewed publications and national presentations, centers on improving outcomes in stroke care and understanding cognitive recovery following brain hemorrhage.
Recognized for her academic excellence and compassionate approach, 

Dr. Peterson received the James E. Boggan Award for Scholarly Excellence twice. She believes in a personalized, respectful approach to neurosurgical care and stays active in the field through membership in organizations like the AANS, CNS, and SNIS.

Outside the operating room, Dr. Peterson enjoys gardening, traveling, and spending time with her family in California’s outdoors.

Dr. Disney is no longer accepting office patients.

Dr. Disney believes that patients need an individualized approach to their neurosurgical problems. This includes complex disorders of the spine and brain as well as peripheral nerves. There is no substitute for listening carefully to patients and guiding them to the best approach to their problem. Many problems of the spine and brain give rise to pain or other impediments to quality of life. Dr. Disney utilizes conservative treatments where appropriate to help resolve these problems and return individuals back to active pain free lives. Many patients don’t need surgery but instead find relief with physical therapy, exercise and activity modification. When needed surgery is performed in the least invasive way possible consistent with alleviating the patient’s symptoms and problems.

A frequent recipient of top doctor awards, patient choice awards and most compassionate doctor awards Dr. Disney takes the time to listen carefully to patients concerns and fears. Treatment options are laid out in layman’s terms to allow patients to understand their choices and what is being recommended to them. Most neurosurgical disorders have more than one possible approach to treatment and it is important to empower patients to make the choice that is correct for them.

A graduate of McMaster University in Hamilton Ontario, Dr. Disney initially studied Engineering Physics and later medicine. The critical thinking and problem solving skills of engineering have been applied to neurosurgery with success. A surgical internship at the University of Toronto was followed by Neurosurgical Residency and Fellowship at the University of Alberta where he also obtained a PhD in Experimental Surgery. Dr. Disney has practiced in the same group practice in Southern California since finishing residency. The practice’s name has changed but what has not is a patient centric approach dedicated to achieving the best possible patient outcomes. All the partners of the group share the same philosophy. When not engaged in neurosurgery Dr. Disney enjoys spending time with his family and is an avid skier, cyclist and aviator.

EDUCATION

• Bachelor of Engineering in Engineering Physics, McMaster University 1979
• Doctor of Medicine, McMaster University 1982
• Doctor of Philosophy in Experimental Surgery, University of Alberta 1990.
• Completed Neurosurgical Residency in June 1991.
• Fellow of the Royal College of Surgeons of Canada Board Certification in Neurosurgery, 1991.
• GAMMA Knife trained and certified 2009.

ASSOCIATIONS & MEMBERSHIPS

• Congress of Neurological Surgeons (CNS)
• California Association of Neurological Surgeons (CANS)
• American Medical Association (AMA)
• California Medical Association (CMS)

ARTICLES & JOURNALS

• Article: PubMed.gov Articles

Dr. Samudrala is no longer accepting new patients.

Dr. Srinath Samudrala is a highly experienced neurosurgeon bringing his more than 30 years of experience to INI. He received his medical degree from the University of California Los Angeles (UCLA) and completed his residency at New York University (NYU). He is fellowship trained in spine surgery through University of Florida.

With a commitment to enhancing surgical outcomes and improving the quality of life for his patients, Dr. Samudrala combines compassion and innovation in his treatments. He stays at the forefront of advancements in the field to ensure the best possible care for his patients. He is loved by his patients and colleagues alike.

On his time off, he enjoys spending time with his grown children, skiing, and hiking.

Dr. Lederhaus is no longer accepting office patients.

Dr. Scott Lederhaus became interested in neurosurgery at the age of 20 while he attended the University of California Irvine. During his studies, he managed to connect with Dr. Eldon Foltz who was the chief of neurosurgery at UCI Medical Center and became involved in neurosurgery research while observing several neurosurgical procedures and even managed to perform some experimental surgery on animals himself. From that point on, Scott was hooked on neurosurgery.

Scott finished Med school at Rush Presbyterian Hospital in Chicago followed by a year of general surgical internship at UC Davis. After his general surgical internship at UC Davis, Scott later returned to the University of California Irvine for a 6 year residency. Shortly after his residency Scott joined a practice in Pomona with Dr. Colin McDonald and Dr. David Brown for several years. Just prior to Dr. McDonald retiring he told Scott, “I may not have always had the results of the surgery I performed, but I never did a case that I didn’t feel needed to be done.” Scott felt the same and after hearing those words from Dr. McDonald he chose to live by those words.

Dr. Scott Lederhaus enjoys treating patients in the manner he would want a doctor to treat him. He joined the Association of Medical Ethics formed by Dr. Charles Rosen at UC Irvine Medical Center and later became a Board member for the organization. The Association of Medical Ethics is dedicated to evidenced based medicine and doing what is right for the patient independent of financial gain. He is fortunate to have partners at INI who share the same philosophy. He loves his wife and family.

EDUCATION

• Bachelor of Science with Honors in biological science, University of California, Irvine, 1975.
• M.D. Degree Rush Presbyterian Hospital, Chicago, Illinois, 1980.
• Surgical Internship: University of California, Davis, 1981
• Neurosurgical Residency: University of California, Irvine. Completed in 1986
• Board Certified by the American Board of Neurological Surgeons, 1988
• GAMMA Knife trained and certified 2008.
  
  

ASSOCIATIONS & MEMBERSHIPS

• American Association of Neurological Surgeons (AANS)
• Congress of Neurological Surgeons (CNS)
• California Association of Neurological Surgeons (CANS)
• American Medical Association (AMA)
• California Medical Association (CMS)
• National Association of Spine Specialist (NASS)
• Association for Ethics in Spine Surgery

ARTICLES & JOURNALS

• Surgeon Salesmen? Doctors profit from devices they put in patients.
• Article: Lumbar Interbody Fusion
• Article: PubMed.gov Articles

Siraj Gibani, MD, is an experienced neurosurgeon with the team at Inland Neurosurgery Institute (INI). Dr. Gibani sees patients at the practice’s offices in Pomona and Arcadia, California. 

Dr. Gibani is a native of the Inland Empire and grew up in West Covina and Pomona, California. He obtained his bachelor’s degree in biology from the California State University of Los Angeles through the Early Entrance Program. He went on to obtain his medical degree from Pennsylvania State University in Hershey. For his training, Dr. Gibani completed a neurosurgical residency in Philadelphia at Temple University Hospital. He then went on to pursue further subspecialty training in minimally invasive and complex deformity spinal neurosurgery at Stanford University Hospital in California. 

Dr. Gibani is affiliated with several professional organizations, including the American Association of Neurological Surgeons, the Congress of Neurological Surgeons, and the American Medical Association.

Dr. Gibani is happily married, and he enjoys soccer, hiking, and swimming in his spare time

EDUCATION

• Bachelor of Science in biology, California State University of Los Angeles.
• M.D. Degree, Pennsylvania State University, Hershey, PA.
• Neurosurgical Residency: Temple University Hospital, Philadelphia, PA.
• Subspecialty Training: Minimally invasive and complex deformity spinal neurosurgery, Stanford University Hospital, Stanford, CA.

ASSOCIATIONS & MEMBERSHIPS

• American Association of Neurological Surgeons (AANS)
• Congress of Neurological Surgeons (CNS)
• American Medical Association (AMA)

ARTICLES & JOURNALS

• Arko, Leopold IV MD; Passer, Joel Z. MD; Ahye, Nicholas MD; Quach, Eric MD; Gibani, Siraj MD; Manoochehri, Shahin MD; Fierst, Tamara M. MD (2016). Journal Club: Pediatric Low-Grade Ganglioglioma: Epidemiology, Treatments, and Outcome Analysis on 348 Children From the Surveillance, Epidemiology, and End Results Database. Neurosurgery. Vol 79 Issue 2 p 306-308.
• Hanrahan, G., Gibani, S. and Miller, K. (2008) Multivariate Chemometrical Classification and Assessment of Lake Tuendae: Mojave Desert Aquatic Environment Housing the Endangered Mojave Tui Chub. Ecological Informatics 3: 334-342.
• Hanrahan, G.; Zhu, J.; Gibani, S.; Patil, D.G. (2005) Chemometrics/Experimental Design, in Encyclopedia of Analytical Science, Second Edition (Paul J Worsfold, Alan Townshend and Colin F Poole, eds.), Elsevier, Oxford, Vol. 2, pp. 8-13.

Dr. Benjamin Ball grew up in a smaller town within the New York Tri-State area. As a young adult, he moved to Charlottesville, Virginia where he completed a double major in chemistry and biology at the University of Virginia, graduating with high honors. He remained at UVA for medical school, where his pre-clerkship GPA was top five in his class. He then completed his neurosurgical residency at the University of California, Irvine, where he spent a year completing an enfolded skull-base surgery fellowship. His surgical interests include tumors, spine, and trauma. In his free time, he enjoys watching movies, reading science fiction books, attending local comedy shows, and watching UVA Men’s Basketball dominate.