About Us

The practice is dedicated to providing the highest quality care in the specialty of Otorhinolaryngology. Together, Drs. Timothy Scott, Abraham Hsieh, and Michael Murphy bring years of university-based experience to provide a complete array of tertiary care services to the Diablo Valley community with offices in Walnut Creek and San Ramon.

Drs. Scott, Hsieh, and Murphy are board certified by The American Board of Otolaryngology, Head and Neck Surgery. Additionally, they are staff members of the John Muir Medical Center and San Ramon Regional Medical Center. They perform head and neck surgery at these facilities, as well as Sequoia Surgical Pavilion, Aspen Surgery Center, and the San Ramon Regional Ambulatory Surgery Center.


Diablo Valley ENT offers comprehensive consultative clinical services in the diagnosis and treatment of disorders involving the ear, nose, throat, head, and neck. voice, swallowing, balance, and sinuses.

Specialized testing and innovative treatments are available, including endoscopic examination, microscopic ear examination, audiology testing, allergy testing and treatment (both shots and sublingual drops), and videostroboscopy, FEES testing, as well as surgical intervention.

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Important Notice

As of March 1, 2016, Diablo Valley ENT has partnered with Stanford Health Care. Diablo Valley ENT is excited to continue to preserve the same individualized private practice environment while adding seamless access to one of the world’s leading medical institutions.

Although Diablo Valley ENT and Stanford Health Care would like to continue to participate in the Muir Medical Group IPA HMO contracts, our HMO affiliation with the Muir Medical Group IPA will end on May 31, 2016. It is important to remember that this only applies to HMO patients who selected their primary care physician through Muir Medical Group IPA. These terminations have no impact on other insurance contracts (e.g., PPO, Medicare Fee for Service).

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