Dr. Denise V. Guendert

Davud Sirjani is an Otolaryngologist in Stanford, California. Dr. Sirjani is rated as a Distinguished provider by MediFind in the treatment of Renal Oncocytoma. His top areas of expertise are Salivary Gland Tumors, Sialadenitis, Mikulicz Disease, and Salivary Duct Stones.

Dr. Groppo practices the breadth of Otolaryngology – Head & Neck Surgery, including the medical and surgical treatment of ear, nose and throat disorders. He was initially drawn to the field of Otolaryngology because it offered the opportunity to improve the quality of life for patients of all ages – adults and children.Dr. Groppo has special interests in hearing loss evaluation and treatment, endoscopic sinus surgery, microlaryngeal surgery, using voice preservation and restoration techniques, facial reconstruction after skin cancer surgery, thyroid and parathyroid surgery and the treatment of benign and malignant head and neck tumors. He has received advanced training in office-based and intraoperative ultrasonography and uses this technology routinely for characterizing and diagnosing head and neck tumors, performing fine-needle aspiration (FNA) biopsies and performing targeted parathyroid surgery.A California native, Dr. Groppo grew up in Sunnyvale and attended the University of California, San Diego where he completed his undergraduate degree in Bioengineering. Prior to going into medicine, he worked as a Development Engineer and helped to develop medical devices at UC San Diego and at the NASA Ames Research Center. Dr. Groppo subsequently received his medical training at The George Washington University School of Medicine in Washington, D.C. He then returned to California where he completed his residency in Otolaryngology – Head & Neck Surgery at the University of California, San Francisco. His research has been published in national and international peer-reviewed journals, and he has presented at national meetings around the country.Dr. Groppo has served in various leadership positions at Sacramento area hospitals and physician associations. He is currently the Chief of Surgery at Mercy General Hospital and the Chief of Otolaryngology with Hill Physicians. He serves as clinical faculty for the Dignity Family Medicine Residency Program. He volunteers his time and expertise by providing charity care for medically indigent patients through the Sierra Sacramento Valley Medical Society SPIRIT program.In his free time, Dr. Groppo enjoys spending time with his family. He enjoys golfing, hiking, camping and skiing. He is an avid San Francisco Giants baseball fan and loves to travel. Dr. Groppo is rated as a Distinguished provider by MediFind in the treatment of Renal Oncocytoma. His top areas of expertise are Jones Syndrome, Infant Hearing Loss, DFNB1, Sinusitis, and Balloon Sinuplasty.

Daniel Dubose is an Otolaryngologist in Sonora, California. Dr. Dubose is rated as a Distinguished provider by MediFind in the treatment of Renal Oncocytoma. His top areas of expertise are Infant Hearing Loss, Otitis, Benign Paroxysmal Positional Vertigo, and Familial Deafness.