Neurosurgery Residents 2022-23

Michael Kortz, DO
PGY I

Undergrad: Baylor University
Med school: Kansas City University
Interests: functional, tumor, critical care, trauma, extreme environments medicine
Hobbies: travel, anything outdoors (hiking, skiing, climbing, etc), music, astronomy

Keshari Shrestha, MD
PGY I

Undergrad: University of Florida
Med school: University of Colorado SOM
Interests: vascular, tumor
Hobbies: rock climbing, hiking, watching tv

Reinier Alvarez, MD
PGY II

Undergrad: Florida International University
Med school: Florida International University - Herbert Wertheim College of Medicine
Interests: Skull base
Hobbies: comedy, raising my puppy, wine, photography

Ahmed Helal, MD
PGY II

Undergrad: Alexandria University
Med School: Alexandria University
Fellowship: International NSURG Fellowship- Mayo Clinic & Pediatric NSURG Fellowship- OHSU
Interests: Vascular and Epilepsy
Hobbies: Spending time with family, Weightlifting, sitcoms, watching basketball and soccer, non-fiction reading

William Harris, MD
PGY II

Undergrad: Colorado College
Med school: University of Hawaii
Interests: Pediatrics, functional
Hobbies: Running, soccer, skiiing, surfing, trying new restaurants

Julia Pazniokas, MD
PGY III

Undergrad: Boston College
Med school: New York Medical College
Interests: pediatrics
Hobbies: baking, arts&crafts, exercise, paddle boarding

Lindsey Freeman, MD
PGY IV

Undergrad: The Ohio State University
Med school: Case Western Reserve University
Interests: cranial, spine, pediatrics, general
Hobbies: talking to sister on the phone, hiking, biking, reading

Ashkaun Razmara, MD
PGY IV

Undergrad: UC Berkeley
Masters: Johns Hopkins 
Med school: Frank Netter SOM
Interests: Functional, Brain-Computer Interface 
Hobbies: Music, film, sports, physical endurance, spaceflight

Jessa Hoffman, MD
PGY V

Undergrad: Middlebury College
Med school: New York Medical College
Interests: Vascular Neurosurgery
Hobbies: skiing, hiking, camping, walking my dog

Blake Wittenberg, MD
PGY V

Undergrad: CU Boulder
Med school: LSU New Orleans
Interests: Spine, Endoscopic Spine, General
Hobbies: Fishing, Cooking, Hanging out with family and dogs

Gregoire Chatain, MD
PGY VI / Chief Resident

Undergrad: Bishop’s University
Grad school: Oxford University
Med school: University of London, Barts and The London School of Medicine and Dentistry
Interests: Complex spine
Hobbies: Traveling, cooking, running, skiing

William McKay, MD
PGY VI

Undergrad: Brigham Young University
Med school: Wake Forest School of Medicine
Interests: General Neurosurgery, Trauma, Complex spine
Hobbies: hiking, mountain biking, team sports, painting, reading, gardening

Akal Sethi, MD
PGY VII 

Undergrad: McGill University
Med school: Tufts University
Interests: Spine
Hobbies: fine dining, golfing, Formula 1, spending time with family,  traveling

Timothy Ung, MD
PGY VII / Chief Resident

Undergrad: University  of Colorado
Med school: University of Colorado
Fellowship: Neuro-Oncology, Stanford University
Interests: Neuro-oncology
Hobbies: Skiing, Mountaineering, Fly Fishing, Ice Hockey