Current Residents

PGY4

Hunter Goldsmith, MD, Chief Resident

Hometown: Huntington, New York
Internship: Riverside Community Hospital
Medical School: University of Vermont
Undergraduate School: Stony Brook University
PM&R Interests: Interventional pain medicine, regenerative medicine, traumatic brain injury
Personal Interests: Hiking, camping, cooking, kayaking, fishing, foreign films

Richard Martirosian, MD

Hometown: Burbank California
Internship: St. Mary Medical Center, Long Beach, California
Medical School: University of Arizona College of Medicine, Tucson
Undergraduate School: University of California, Riverside
PM&R Interests: General rehab, interventional pain, sports medicine
Personal Interests: Basketball, Brazilian jiu-jitsu

Emmanuel Villalpando, MD

Hometown: Santa Clara, California
Internship: Adventist Health White Memorial
Medical School: University of California, Los Angeles
Undergraduate School University of California, San Diego
PM&R Interests: General rehabilitation, sports medicine, regenerative medicine
Personal Interests: Football, MMA, working out, salsa and cumbias, trying new places to eat

PGY3

Brian Khin, DO

Hometown: Arcadia, California
Internship: KPC Health- Transitional Year
Medical School: Midwestern University - AZCOM
Undergraduate School: University of Southern California
PM&R Interests: General rehabilitation, adaptive sports, spinal cord injury, pain
Personal Interests: Climbing, volleyball, gaming, TCGs, anime, discovering new music genres and food

Cameron Widhalm, DO, Chief Resident

Hometown: Yakima, Washington
Internship: St. Mary's internal medicine, Long Beach, California
Medical School: Western University of Health Sciences
Undergraduate School: Washington State University
PM&R Interests: Musculoskeletal, sports medicine, ultrasound
Personal Interests: Hiking, dirt biking, weightlifting, gardening, interior design, drawing and sewing

Petro Zaroukian, MD

Hometown: Burbank, California
Internship: Valley Health System, TY, Las Vegas, Nevada
Medical School: University of Wisconsin School of Medicine and Public Health
Undergraduate School: UCLA
PM&R Interests: General rehabilitation, interventional spine, musculoskeletal
Personal Interests: Cars, coffee, gym, cooking/grilling, pickleball

PGY2

Samuel Chan, MD

Hometown: Huntington Beach, California
Internship: Los Robles Hospital
Medical School: Virginia Health Sciences at ODU
Undergraduate School: UC Santa Barbara
PM&R Interests: General Rehabilitation and traumatic brain injury (TBI)
Personal Interests: Basketball, tennis, pickleball, the beach, and hiking

Tin Nguyen, MD

Hometown: Houston, Texas
Internship: St. Mary's Hospital, Long Beach
Medical School: University of Vermont
Undergraduate School: University of Texas, Austin
PM&R Interests: Musculoskeletal, sports, ultrasound, general rehabilitation, and regenerative medicine
Personal Interests: Concerts, swimming, video games, and billiards

Atharv Patwardhan, MD

Hometown: Bay Area, California
Internship: Medical College of Wisconsin
Medical School: Rosalind Franklin University of Medicine and Science
Undergraduate School: University of Miami
PM&R Interests: Pain management, regenerative medicine, and spasticity management
Personal Interests: Soccer, exploring Southern California, the beach, and hiking

Past Graduate Destinations

Class of 2026

Alvin Chang, MD
Brain Injury Fellowship, University of Washington

Brian Vu, MD
Pain Management Fellowship, University of California, Irvine

Cindy Ye, MD
Neuromuscular Fellowship, University of California, San Francisco

Class of 2025

Matthew Ballard, MD
Pain Medicine Fellowship, Loma Linda University, CA

Curren Giberson, MD
General Physiatry, Seattle, WA

Kashif Malik, MD
Pain Medicine Fellowship, Medical College of Georgia, GA

Class of 2024

Preston Hatch, DO
General Physiatry, Renown Health, Reno, Nevada

Edward Anton, MD
Brain Injury Fellowship, Mayo Clinic College of Medicine and Science, Rochester, Minnesota

Nathan Camp, MD
Interventional Spine/MSK Medicine Fellowship, OSS Health, York, Pennsylvania

Class of 2023

Neha Dhadwal, DO
Brain Injury Fellowship, University of Pennsylvania

James Lieu, DO
Interventional Spine/MSK Medicine Fellowship, OSS Health, York, Pennsylvania

Christopher Manik, MD
General rehabilitation, Pomona, California

Class of 2022

Jeffrey Badday, MD
Pain Management Fellowship, Manhattan Restorative Health Sciences, Comprehensive Spine and Pain Center, Manhattan, New York

Elliott Block, DO
General Physiatry, Casa Colina Hospital and Centers for Healthcare, Pomona, California

Lindy Gunawan, DO
Kessler SCI Fellowship, Rutgers New Jersey Medical School, Neward, New Jersey

Class of 2021

Jason Wei, DO
UCLA Interventional Spine Fellowship, Los Angeles, California

Adam Burton, DO
Post-acute Care, Denver, Colorado

Nicholas Gularte, DO, MS
Bodor Clinic Sports & Spine Fellowship, Napa, California

Class of 2020

Karthikeyan Bhuvaneswaran, DO
Loma Linda University Neuromuscular Fellowship - Loma Linda, California

Thomas Kim, DO
Integrative Physiatry - Long Beach, California

Zair Shah, DO
Synnovation Pain Management Fellowship - Pomona, California

Patient Stories