Our Professional Staff

Our experienced providers are committed to a high standard of patient care and are here for you throughout every stage of your hearing journey.

Who We Are

Working as a unified team, we can share our individual expertise and consult with one another discussing patients’ needs and appropriate treatments. Our physicians are board certified by the American Academy of Otolaryngology-Head and Neck Surgery, the world’s largest organization of head and neck surgeons dedicated to the care of the ear, nose and throat disorders.

We have seven Doctors of Audiology on staff to provide comprehensive diagnostic hearing evaluations and hearing aid fittings. Our physicians, audiologists and staff have the highest level of respect for each other with a total focus on what is best for the patient. This relationship makes it convenient for patients to receive medical treatment and obtain hearing aids all from the same practice.

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Our Audiologists

Andrea Federman 1

Andrea Federman, Au.D.


Jessie Grzeca

Jessie Grzeca, Au.D.


Mark Conradt

Mark Conradt, Au.D.


Erin Krueger

Erin Krueger, Au.D.


Cathy Dreifuerst

Cathy Dreifuerst, Au.D.

Tammy Mischka

Tamara Mischka, Au.D.


Tricia Roh

Tricia Roh, Au.D.


Holly Rusch

Holly Rusch, Au.D.


Nicole Auxier

Nicole Auxier, Au.D.


ENT Physicians

Dr Bechard

Robert J. Bechard, M.D.

Dr. Bechard is originally from Appleton, Wisconsin. He has practiced in the Fox Valley since completing his residency in 1994. Dr. Bechard is married and has one son and lives in Oshkosh. He sees patients in Oshkosh and Neenah.

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Dr Prehn

Robert B. Prehn, M.D.

Dr Keller

Christopher J. Keller, M.D.

Dr Burton

Larry K. Burton, Jr., M.D.

Dr Meyer

Todd A. Meyer, DO, FAAOA

Lira Martinez

Lira Martinez, PA-C, MS

Dr Mjaanes

Christopher M. Mjaanes, MD

Dr Subbarayan

Rahul S. Subbarayan, MD

Dr Swanson

Gregory J. Swanson, MD, PhD, FACS, FAAOA

Nurse Practitioners

Kasey Boerner

Kasey A. Boerner, MSN, RN, FNP-BC (APNP)