About our Otology Surgery Center and Operating Room Procedures

Otology Surgery Center

In an effort to improve quality of surgical outcomes and to reduce costs - particularly for our international patient population - CEIMG has constructed an Operating Theater specially designed for Ear Surgery. Like master chef's cooking in their own kitchen, familiarity of surroundings, customized equipment and highly trained staff allows CEIMG surgeons to produce the finest quality for our patients.


What does Accreditation mean?

Accreditation is a voluntary process through which an medical practice measures the quality of its services against objective standards set by an independent and nationally recognized organization. The accreditation process involves self-assessment by the organization, as well as a thorough review by the Accreditation Association's expert surveyors, who themselves have extensive experience in the ambulatory health care environment.

An accreditation certificate is a symbol that an organization is committed to providing high-quality health care and that it has demonstrated that commitment by measuring up to the Accreditation Association's high standards.

California Ear Institute's IMQ Accreditation

In 2008, California Ear Institute was granted preliminary accreditation by the Institute for Medical Quality (IMQ). IMQ is a 501 (c) (3) non-profit organization dedicated to improving the quality of care provided to patients across the continuum of health care. In addition to ambulatory surgery center accreditations, IMQ offers a wide range of of educational programs. After a standard initial six month period, CEI was granted the maximum three year extension to its additional accreditation period. After that time the accreditation was extended another 4 years to June, 2016.




California Ear Institute offers Industry leading Physicians, Surgeons, and Audiologists who continue to innovate, evaluate and deliver state of the art modalities as well as to be involved in virtually all FDA sanctioned clinical trials of new devices and procedures for hearing loss and dizziness. It is our goal at CEI to provide the ultimate care, service and capability available for those who put their trust in us. 

Joseph Roberson, M.D.

Joseph Roberson, M.D.

Otology, Neurotology, Skull Base Surgery
CEO & Managing Partner - California Ear Institute
President - Let Them Hear Foundation

 Read Dr. Roberson Full Bio

Procedures performed at this site

Location Contact & Map Information - Portola Valley Office

  • Office Hours: Monday - Thursday 8am to 4pm - Friday 8am to 2om

Portola Valley Office - Headquarters

844 Portola Road
Portola Valley, CA 94028
Phone: (650) 494-1000
Fax: (650) 322-8228 
People with hearing loss or speech disability email appointments @ calear.com

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