Kaicheng Yen, M.D., Ph.D.

Kaicheng Lawrence Yen, M.D., Ph.D.


Otolaryngology (ENT/Ears, Nose, Throat)

Surgery - Head and Neck, Otolaryngology




  • Associate Physician, Department of Otolaryngology


To see if Kaicheng Lawrence Yen is accepting new patients, or for assistance finding a UC Davis doctor, please call 800-2-UCDAVIS (800-282-3284).

Glassrock Building

2521 Stockton Blvd., Suite 5200
Sacramento, CA 95817
Driving Directions

Primary Phone:

UC Davis Medical Group - Elk Grove

9390 Bighorn Blvd., Suite 120
Elk Grove, CA 95758
Driving Directions

Primary Phone:

Additional Phone Numbers

Clinic Phone: 916-683-3955
Clinic Fax: 916-478-0148
Physician Referrals: 800-4-UCDAVIS (800-482-3284)

Philosophy of Care

For many patients, the clinical visit take time away from other activities, and my goal is to provide the most comprehensive care, so as to minimize the redundancies in the diagnosis and treatment of the patients' concern. With thirty years of experience in this specialty field and years of training, I feel confident in the delivery on this promise.

Clinical Interests

Dr. Yen is a general otolaryngologist offering care for older children and adults in most diseases of the ear, nose and throat, as well as specializing in the diagnosis of lumps and bumps in the head and neck region. He has special interests in the utility of the ultrasound in the diagnosis and surveillance of diseases in the head and neck region.

Research/Academic Interests

Dr. Yen's research focuses on improving the diagnosis of lumps and bumps in the head and neck region, with the utility of ultrasound imaging in the clinical setting.



Center/Program Affiliation

UC Davis Medical Group


M.D., National Taiwan University, Taipei, Taiwan 1988

Ph.D., Health Policy & Cancer Epidemiology, University of South Carolina, Columbia SC 2006

Internship: Otolaryngology-Head & Neck Surgery, National Taiwan University Hospital, Taipei, Taiwan 1990-1991


Otolaryngology-Head & Neck Surgery, National Taiwan University Hospital, Taipei, Taiwan 1991-1995


Head & Neck Surgical Oncology, Duke University Medical Center, Durham NC 1995-1996

Head & Neck Reconstruction, UC Davis Medical Center, Sacramento CA 2010-2011

Laryngology, UC Davis Medical Center, Sacramento CA 2011-2012

Board Certifications

Educational Commission for Foreign Medical Graduates,

Taiwan Otolaryngology Society,

Professional Memberships

American Academy of Otolaryngology - Head and Neck Surgery

Taiwan Otolaryngology Society

Select Recent Publications

Yen KL, Farwell DG. Surgical management of life-threatening dysphagia. Principles of Deglutition: A Multidisciplinary Text for Swallowing and its Disorders, New York: Springer. 2013;66:945-954.

Belafsky PC, Plowman EK, Mehdizadeh O, Cates D, Domer A, Yen K. The upper esophageal sphincter is not round: a pilot study evaluating a novel, physiology-based approach to upper esophageal sphincter dilation. Ann Otol Rhinol Laryngol. 2013 Apr;122(4):217-21. doi:10.1177/000348941312200401. PMID:23697317.

Cates D, Plowman EK, Mehdizadeh O, Yen K, Domer A, Gilden M, Belafsky PC. Geometric morphometric shape analysis in an ovine model confirms that the upper esophageal sphincter is not round. Laryngoscope. 2013 Mar;123(3):721-6. doi:10.1002/lary.23634. Epub 2012 Oct 5. PMID:23042631.

Chung YL, Lee MY, Horng CF, Jian JJ, Cheng SH, Tsai SY, Hsieh CI, Yen LK, Lin CY. Use of combined molecular biomarkers for prediction of clinical outcomes in locally advanced tonsillar cancers treated with chemoradiotherapy alone. Head Neck. 2009 Jan;31(1):9-20. doi:10.1002/hed.20913. PMID:18767174.

Cheng SH, Tsai SY, Horng CF, Yen KL, Jian JJ, Chan KY, Lin CY, Terng SD, Tsou MH, Chu NM, Chen HH, Chen PL, Chung YL, Hsieh CI, Tan TD, Huang AT. A prognostic scoring system for locoregional control in nasopharyngeal carcinoma following conformal radiotherapy. Int J Radiat Oncol Biol Phys. 2006 Nov 15;66(4):992-1003. doi:10.1016/j.ijrobp.2006.06.006. Epub 2006 Sep 18. PMID:16979832.

Yen KL, Horner MJ, Reed SG, Daguise VG, Bolick-Aldrich SW, Young MR, Day TA, Wood PA, Hebert JR. Head and neck cancer disparities in South Carolina: descriptive epidemiology, early detection, and special programs. J S C Med Assoc. 2006 Aug;102(7):192-200. PMID:17319230.

Cheng SH, Tsai SY, Yen KL, Jian JJ, Feng AC, Chan KY, Hong CF, Chu NM, Lin YC, Lin CY, Tan TD, Hsieh CY, Chong V, Huang AT. Prognostic significance of parapharyngeal space venous plexus and marrow involvement: potential landmarks of dissemination for stage I-III nasopharyngeal carcinoma. Int J Radiat Oncol Biol Phys. 2005 Feb 1;61(2):456-65. doi:10.1016/j.ijrobp.2004.05.047. PMID:15667967.

Jian JJ, Cheng SH, Tsai SY, Yen KC, Chu NM, Chan KY, Tan TD, Cheng JC, Lin YC, Leu SY, Hsieh CI, Tsou MH, Lin CY, Huang AT. Improvement of local control of T3 and T4 nasopharyngeal carcinoma by hyperfractionated radiotherapy and concomitant chemotherapy. Int J Radiat Oncol Biol Phys. 2002 Jun 1;53(2):344-52. doi:10.1016/s0360-3016(02)02709-8. PMID:12023138.

Chen HM, Shih CC, Yen KL, Wang SM, Kuo YS, Kuo MY, Chiang CP. Facial Candida albicans cellulitis occurring in a patient with oral submucous fibrosis and unknown diabetes mellitus after local corticosteroid injection treatment. J Oral Pathol Med. 2004 Apr;33(4):243-5. doi:10.1111/j.0904-2512.2004.00058.x. PMID:15061713.

Cheng SH, Yen KL, Jian JJ, Tsai SY, Chu NM, Leu SY, Chan KY, Tan TD, Cheng JC, Hsieh CY, Huang AT. Examining prognostic factors and patterns of failure in nasopharyngeal carcinoma following concomitant radiotherapy and chemotherapy: impact on future clinical trials. Int J Radiat Oncol Biol Phys. 2001 Jul 1;50(3):717-26. doi:10.1016/s0360-3016(01)01509-7. PMID:11395240.

Recent Videos


Kaicheng Lawrence Yen, M.D., Ph.D. - UC Davis Health Department of Otolaryngology