Dr. Roberto Aranibar

Roberto Aranibar

Dr. Roberto Aranibar specializes in minimally invasive neurological surgery, namely Gamma Knife Radiosurgery, which uses highly-focused gamma rays to treat small to medium size lesions in the brain with minimal effect on surrounding healthy tissue. He graduated from the Cayetano Heredia School of Medicine in Peru and completed several specialized surgical residencies to include clinical neurosurgery, neuropathology and neurology. Dr. Aranibar has held several Chief of Neurosurgery and academic appointments in Texas and remains active in several medical professional societies.


Education and Experience:

Medical School:      

Bachelor in Medicine
San Marcos School of Medicine, Lima, Peru, 1967-1968

Physician and Surgeon
Cayetano Heredia School of Medicine, Lima, Peru, 1969-1973


Lutheran Hospital of Maryland, Baltimore, Maryland, 1973-1974
Medicine – 3 months; Surgery – 3 months; OB-GYN – 3 months


General Surgery
University of Rochester Surgical Program
New York (with rotations through St. Mary’s Hospital, Rochester General Hospital and Gennesee Hospital), 1974-1975.

Neurological Surgery
University of Missouri
Columbia, Missouri, 1975-1980 (with the following rotations)

Clinical Neurosurgery
University of Missouri Medical Center – VA Hospital
Columbia, Missouri, 1975-1976

Barnes Hospital at Washington University
St. Louis, Missouri, July to October 1976

Barnes Hospital at Washington University
St. Louis, Missouri, October 1976 to July 1977

Clinical Neurosurgery
St. Luke’s Hospital (an affiliate of the Neurosurgical Program of University) Columbia, Missouri, July 1977 to December 1978

Senior Resident
Pediatric Neurosurgery
Children’s Hospital and Peter Bent Brigham Neurosurgical
Program, Harvard University, Boston, Massachusetts, January 1979 to July 1979

Chief Resident
University of Missouri Medical Center – VA Hospital
Columbia, Missouri, July 1979 to June 1980


Bexar County Medical Society
Texas Medical Association
Texas Association of Neurological Surgeons
Congress of Neurological Surgeons
American Association of Neurological Surgeons
North American Spine Society


Specialty Training:

Lasery Microneurosurgery
November 16, 1985

Ray Threaded Fusion Cage
February 1, 1997

Gamma Knife Radiosurgery
January 26-30, 1998

BAK Lumbar Interbody Fusion System
September 19, 1998

Kyphon Ballon Kyphoplasty Training
September 15, 2000

Principles in Dynamic Stabilization
November 15-16, 2003

CHARITE® Artificial Disc
February 17, 2005

X-STOP® IPD® Interspinous Process Decompression
March 28, 2007

Mobi-C® LDR Cervical Disc
February 28, 2014

Undergraduate Education:

Bachelor in Humanities, Elementary and Secondary School, Lima, Peru, 1954-1966