Hassan Alissa is a Rheumatologist in San Marcos, Texas. Dr. Alissa is highly rated in 14 conditions, according to our data. His top areas of expertise are MAGIC Syndrome, Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcus Infections, IgG4-Related Disease, and Light Chain Deposition Disease (LCDD). Dr. Alissa is currently accepting new patients.