University of Arkansas for Medical Sciences, Department of Otolaryngology-Head and Neck Sugery, Visiting physician program, August 2003, Little Rock, AR, USA
August 2003, Little Rock, AR, USAHouse Ear Institute and Clinic, Visiting physician program
August 2004 and September 2007, Los Angeles, CA, USA.Mayo Clinic, Otorhinolaryngology- Head and Neck Surgery/Audiology, Clinical Research Fellowship
July 2008- June 2009, Jacksonville, FL, USAEducational Comission for Foreign Medical Graduates (ECFMG) Certificate
2009 (USMLE # 0-660-883-0).Medical College of Georgia, Department of Otolaryngology-Head and Neck Surgery, Center for voice and swallowing disorders, Clinical Fellowship in Laryngology (Fellowship director: Gregory N. Postma, MD)
July-August 2009, Augusta, GA, USA.Wayne State University/Karmanos Cancer Institute, Department of Otolaryngology-Head and Neck Surgery, Clinical Fellowship in Head and Neck Oncologic and Reconstructive Surgery (Fellowship director: John R. Jacobs, MD)
July 2010-July 2011, Detroit, MI, USA.Providence Hospital and Medical Centers, Craniofacial Institute, Microsurgery Training Center, certificate of training in basic microsurgery
November 2010, Southfield, MI, USA.Homer Stryker Center, certificate of training in advanced oromandibular and palatomaxillary reconstruction
November 2010, Mahwah, NJ, USA.Albert Einstein College of Medicine, Beth Israel Medical Center, certificate of training in free flap reconstruction of head and neck defects
March 2011, New York, NY, USA.Johns Hopkins University Medical Scool, Department of Otolaryngology-Head and Neck Surgery, Clinical Fellowship in Endocrine Head and Neck Surgery (Fellowship director: Ralph P. Tufano, MD)
Jul 2013- Jan 2014, Baltimore, MD, USA.Nemours Children's Speciality Care, Department of Pediatric Otolaryngology-Head and Neck Surgery, Visiting physician program
July-Sep 2017 Jacksonville, FL, USA.