Michigan Otolaryngology Surgery Associates (MOSA) was established in 1979. Since that time, we have become one of the leading ear, nose and throat practices in southeast Michigan. We currently see patients in Ann Arbor, Brighton, Canton, Chelsea and Saline.

We work closely with family doctors and primary care physicians throughout Michigan to ensure that proper care continuity is maintained. Our patients are more than cases; they’re unique individuals with unique concerns, and we treat you with the time, care and attention you deserve.

We specialize in the diagnosis and treatment of medical disorders of the ear, nose and throat, ranging from ear infections to throat and other cancers, for adult and pediatric patients. All MOSA physicians are board-certified in otolaryngology, and have been named as Top Doctors by the editors of Consumers Checkbook magazine.

Dr. Laurence Ho

Dr. Ho is Board Certified in Otolaryngology. He has served as chief of medical student education in the University of Michigan Department of Otolaryngology, served as past head of the section of Otolaryngology at St. Joseph Mercy Health System and has been an invited speaker at Mercy College and Mt. Carmel Mercy Hospital.

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Dr. Paul T. Hoff

The treatment of obstructive sleep apnea has been a major area of focus in Dr. Hoff’s practice and as an early adapter of Trans Oral Robotic Surgery (TORS), he is providing patients the most current and effective surgical treatment for obstructive sleep apnea.

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Dr. Meredith J. Montero Brandt

Dr. Meredith J. Montero is a specialist in laryngology, the study and treatment of diseases and disorders that affect the larynx (voice box). Dr. Montero received her M.D. from the University of Michigan Medical School and completed her residency in Otolaryngology at the University of Arkansas for Medical Sciences in Little Rock.

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Dr. Joseph Seymour

Dr. Joseph Seymour is a Board Certified physician who specializes in caring for all patients with diseases of the ear, nose and throat. He also has a comprehensive experience in the surgery of the head and neck.

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Dr. Jan Akervall

Dr. Jan Akervall completed his training at the University Hospital in Lund, Sweden obtaining both MD and PhD degrees. He then completed fellowship training in Head and Neck Cancer reconstruction at University of Michigan. While practicing in Sweden, Dr. Akervall directed the management of Head and Neck cancer for the Southern half of his country.

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Tara Vandewarker, PAC

Tara Vandewarker has been a Physician Assistant of MOSA since July 2014. She received her Master of Physician Assistant in 2007 from the University of Detroit and earned her undergraduate at Eastern Michigan University in 2001.

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Kristine Hammond, PA

Kristine Hammond is a certified Physician Assistant with her Master's degree in Physician Assistant Studies from Rosalind Franklin University of Medicine and Science. She earned her Bachelor's degree in Kinesiology at the University of Michigan. Kristine has been practicing as a PA since 2012 with experience in Cardiothoracic Surgery/critical care and Interventional Radiology.


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Senja Tomovic, M.D.

Dr. Senja Tomovic, M.D. is a board-certified Otolaryngologist that joined the practice in September 2022. She has a special interest in sleep disorders and hearing disorders, sinus surgery and head and neck cancer.  She has been pioneering the use of sialoendoscopy, a minimally invasive approach to salivary gland stones, strictures and duct pathologies.  Dr. Tomovic is an Inspire Excellence Program Member. She has helped hundreds of patients with sleep apnea and implanted over 200 patients with the Inspire device.

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