Kathleen L. Johnson

M.A., CCC-A

Masters in Audiology


Ms. Johnson is a state licensed Audiologist in Delaware.

Betty J. Ruhe

Patient Care Coordinator



Mrs. Ruhe handles patient care and satisfaction for International Hearing Systems.  She is currently in the process of becoming a state licensed Hearing Aid Dispenser in Delaware. 

Mark Harrison

HAD, ACA, NB-HIS

Hearing Aid Dispenser

Audioprosthologist (ACA)

Nationally Board Certified in Hearing Instruments (NBC-HIS)


Mr. Harrison is a state licensed Hearing Aid Dispenser in Maryland & Delaware and resides with his family in Oxford, MD.

Michael Clough

Hearing Aid Dispenser



Mr. Clough is a state licensed Hearing Aid Dispenser in Maryland with over 20 years experience in hearing healthcare.  He resides with his family in Annapolis, MD.

DE  302-336-8376

Hearing Aid Sales & Service in Owings Mills

international Hearing Systems Hearing Aid Sales & Service

MD  410-988-6692

Toll Free  855-942-2062