(559) 432-3303

Caring, Competence, Credentials

Our Physicians and Staff

A team of professionals providing a full range of otolaryngology services to the residents of the Central San Joaquin Valley. Our physicians bring the best in care through our expert centers - The ENT Facial Surgery Center, Physicians Hearing Services, and the Aesthetic Plastic Surgery Pavilion.

Our Otolaryngology ENT Physicians


Jennifer Davies, MD

Jennifer Davies, M.D.

Medical Degree: Doctorate of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, 2002

Internship: University of Texas, Houston Department of General Surgery

Residency: University of Texas, Houston Department of Otolaryngology

License: Physician and Surgeon

Board Certified: American Board of Otolaryngology – Otolaryngology-Head and Neck Surgery


Allen Evans, MD

Allen M. Evans, M.D., F.A.C.S.

Medical Degree: Doctorate of Medicine, Washington University, St. Louis, 1986

Internship: Washington University Medical School

Residency: Washington University, St. Louis

License: Physician and Surgeon

Board Certified: American Board of Otolaryngology – Otolaryngology-Head and Neck Surgery

Practicing in Central Valley since 1992

Specialties include head and neck surgery and disorders of the professional voice


George Hsu, MD

George Hsu, D.O.

Medical Degree: Doctorate of Osteopathic Medicine, Western University of Health Sciences, College of Osteopathic Medicine of the Pacific, California

Internship: Mount Clemens Regional Medical Center, Michigan

Residency: Mount Clemens Regional Medical Center, Michigan

License: Osteopathic Physician and Surgeon

Board Certified: American Osteopathic Board of Otolaryngology - Head and Neck Surgery

Born and raised in Southern California, Dr. Hsu earned his Bachelor of Science degree in Physiological Sciences at the University of California, Los Angeles. During his early studies, he developed a keen interest in Traditional Chinese Medicine. From there, he worked at the UCLA Center for East-West Medicine, where he focused on holistic medicine in the treatment of disease. This holistic approach to disease management led Dr. Hsu to pursue his medical studies at Western University of Health Sciences, College of Osteopathic Medicine of the Pacific. After earning his Doctorate in Osteopathic Medicine (D.O.), he completed a surgical residency in Otolaryngology and Facial Plastic Surgery at Mt. Clemens Regional Medical Center, Mt. Clemens, MI.

Dr. Hsu is a member of the following professional organizations: American Osteopathic Colleges of Ophthalmology and Otolaryngology – Head and Neck Surgery; American Academy of Otolaryngology – Head and Neck Surgery; American Osteopathic Association and American Medical Association. As a personal interest, Dr. Hsu is currently training his young Shetland sheepdog, “Bella,” to become a therapy dog, in hopes of facilitating the healing process of hospital patients.


Brent Lanier, MD

Brent J. Lanier, M.D., C.P.I.

Medical Degree: Doctorate of Medicine, Colorado Medical School, Cum Laude 1978

Internship: University of California, Davis

Residency: University of Washington, Seattle

License: Physician and Surgeon

Board Certified: American Board of Otolaryngology – Otolaryngology-Head and Neck Surgery

Practicing in Central Valley since 1983

Specialties include pediatric otolaryngology, breathing disorders, and clinical research


Benjamin Teitelbaum, MD

Benjamin J. Teitelbaum, M.D., F.A.C.S.

Medical Degree: Doctorate of Medicine, University of Illinois at Chicago, 1989

Internship: University of Illinois at Chicago, 1990

Residency: University of Illinois at Chicago, 1994

License: Physician and Surgeon

Board Certified: American Board of Otolaryngology – Otolaryngology-Head and Neck Surgery

Dr. Teitelbaum was born and raised in Chicago, Illinois. He earned a Bachelor of Science in Engineering at Northwestern University and his Doctor of Medicine at the University of Illinois. Prior to coming to Fresno in 2009, Dr. Teitelbaum practiced Otolaryngology-Head and Neck Surgery in Milwaukee since completing his residency at the University of Illinois at Chicago in 1994. Dr. Teitelbaum is past Chief of the Department of Otolaryngology-Head and Neck Surgery at Aurora St. Luke’s Medical Center and past Head of the Section of Otolaryngology at Aurora Sinai Medical Center.

He is Past President of The Milwaukee Society of Head and Neck Medicine and Surgery and a Fellow of the American College of Surgeons and American Academy of Otolaryngology-Head and Neck Surgery. Dr. Teitelbaum has been involved with clinical training of otolaryngology residents from the Medical College of Wisconsin and has been recognized as an Active Teacher in Family Practice for the St. Luke’s Family Practice Residency since 1996.

Dr. Teitelbaum practices the full spectrum of Otolaryngology-Head and Neck Surgery and has a special interest in advanced surgical treatment of snoring and sleep apnea for adults and children, minimally invasive surgery of the sinuses, and surgery for thyroid tumors. He has lectured extensively to community groups in the Greater Milwaukee area as well as to the local medical community. Aside for his passion for patient care, he enjoys music and the outdoors, especially sailing, windsurfing, skiing, scuba diving, and hiking.


Brien Tonkinson, MD

Brien W. Tonkinson, M.D.

Medical Degree: Doctorate of Medicine, F. Edward Herbert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 1995

Internship: William Beaumont Army Medical Center, El Paso, Texas

Residency: Brooke Army Medical Center, San Antonio, Texas

License: Physician and Surgeon

Board Certified: American Board of Otolaryngology – Otolaryngology-Head and Neck Surgery


Jessi Grostefon, PA-C

Jessi L. Grostefon, PA-C

Medical Degree: Master of Physician Assistant Studies, Butler University, Indianapolis, IN 2016

License: Physician Assistant, California Physician Assistant Board

Certification: National Commission on Certification of Physician Assistants.

Jessi Grostefon is from the Midwest and spent her undergrad years at Butler University in Indianapolis, IN, studying chemistry and early childhood education. She taught English in South Korea for one year before returning to Butler to receive a second Bachelor’s degree in Health Science and her Master’s in Physician Assistant Studies in 2016. She has been practicing as a PA in California with special training in ENT and surgical procedures since graduating cum laude from her alma mater. She is a member of The Society of Physician Assistants in Otorhinolaryngology/Head & Neck Surgery (SPAO-HNS), American Academy of Physician Assistants (AAPA), and the Fresno chapter of the Christian Medical and Dental Association (CMDA). She enjoys assisting her family on medical mission trips abroad and exploring the California coastline and parks. She feels at home in Fresno and sees many similarities to her Hoosier roots.

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