Associate Professor, Director of the Voice and Swallowing Center, Department of Otolaryngology-Head and Neck Surgery, University of Arizona College of Medicine
Associate Director of Commitment for Underserved People (CUP), University of Arizona, College of Medicine
Otolaryngology Staff Physician, Southern Arizona VA Health System
Education:
- UCLA School of Medicine, 2000 (M.D.)
- University of California, Berkeley, 1996 (B.A., Magna Cum Laude, Molecular and Cell Biology)
- Stanford University, 2007 (Fellow, Laryngology)
- University of California, Davis, 2006 (Resident, Otolaryngology-Head and Neck Surgery)
- University of California, Davis, 2002 (Intern, Surgery)
Honors and Awards:
- Top Otolaryngologist in Tucson awarded by Top Doctor of America 2019-2024
- UC Davis Department of Otolaryngology Award for Highest Score on the Annual In-Service Training Examination 2003-2006
- UC Davis Department of Otolaryngology Award for Highest Score on Facial Plastics Section of the Annual In-Service Training Examination 2003-2004, 2006
- UCLA School of Medicine Regent’s Scholar 1996-2000
Selected Publications:
Ahmadian D, Gleadhill C, Wehbi N, Bixby B, Yip HT. Predictors of Response to Endoscopic Treatment of Subglottic/Tracheal Stenosis in patients without Tracheostomy. American Journal of Otolaryngology, Sept 2023. PMID: 37837843. https://doi.org/10.1016/j.amjoto.2023.104055
Wehbi N, Gleadhill C, Ahmadian D, Skirko J, Yip, HT. In-office serial intralesional steroid injection for subglottic stenosis: Case series of 14 patients with multiple etiologies. World Journal of Otorhinolaryngology - Head and Neck Surgery, Feb 8, 2024. https://doi.org/10.1002/wjo2.159
Ahmadian D, Wehbi N, Tseng P, Bixby B, Yip HT. Assessing the Interrater and Intrarater Reliability of Subglottic Stenosis Grading Systems. American Journal of Otolaryngology, 2024 Apr 24:45(4). PMID: 38677144. https://doi.org/10.1016/j.amjoto.2024.104323
Demirjian NL, Lever A, Yip HT. Identifying Practice Gaps Among Otolaryngology Providers for the Treatment of Chronic Cough. OTO Open, May 15 2024. PMID: 38751425. https://doi.org/10.1002/oto2.143
Wehbi N, Lever A, Ahmadian D, Gleadhill C, Yip HT. Outcomes of a Step-up approach to the treatment of neurogenic cough. American Journal of Otolaryngology, September-October 2024. PMID: 39047620. https://doi.org/10.1016/j.amjoto.2024.104412
Wehbi N, Ahmadian D, Gleadhill C, Yip HT. Investigating predictors of decannulation through endoscopic approach in patients with tracheostomy and peristomal subglottic stenosis. OTO Open 2024, Vol. 8(4): e70033 doi: 10.1002/oto2.70033
Ahmadian D, Wehbi N, Gleadhill C, Monahan N, Gallego C, Skirko J, Yip HT. Vocal Cord Dysfunction—Does Laryngeal Adduction on Laryngoscopy Predict Disease Severity and Response to Laryngeal Retraining Therapy? Laryngoscope Investigative Otolaryngology. 2024 Dec 2;9(6):e70039. doi: 10.1002/lio2.70039
Liu V, Smith D, Yip HT, Prevalence and Treatment of Dysphonia in Parkinson’s Disease: A Cross-Sectional National Database Study, Laryngoscope Investigative Otolaryngology, 14 May 2025, volume 10, issue 3/e70149, doi: 10.1002/lio2.70149
Ahmadian D, Aggarwal A, Lever A, Cazzato K, Yip HT, Utility of High Resolution Esophageal Manometry in the Evaluation of Presumed Oropharyngeal Dysphagia, OTO-Open, doi: 10.1002/oto2.70168, in press
Liu V, Cook K, Smith D, Yip HT, Trends in Utilization of Speech-Language Pathology and Otolaryngology Services for Dysphonia in a National Cohort, OTO-Open, in press
Advanced Research Distinction Track (RDT):
Natalie Demirjian, (RDT Class of 2025): "Identifying practice gaps amongst otolaryngology providers for the treatment of chronic cough"
Friday, August 8, 2025