Gina E. Geissler, Au.D., FAAA

Dr. Gina Geissler is a board certified Doctor of Audiology specializing in amplification for hearing loss in the adult and pediatric populations. She evaluates and treats people with tinnitus (ringing in the ears) and vertigo (dizziness). She also evaluates and treats those with hearing loss related to illness, ageing, noise-exposure, chemotherapy and diabetes.

Dr. Geissler received her bachelor’s degree from Marquette University in Milwaukee, WI and her Doctor of Audiology degree from Central Michigan University in Mt. Pleasant, MI. Her clinical Internship included training at the Veteran Administration Hospital in Tucson, AZ and overseas in Guatemala, Honduras, and the Dominican Republic. Her residency training was completed at Illinois Masonic Medical Center in Chicago, IL.

At least once a year, Dr. Geissler participates in a medical mission trip to Guatemala, Africa, or the Dominican Republic. She volunteers her time and services as part of a medical team. Throughout the year, Dr. Geissler collects donations of used and broken hearing aids which are refurbished and provided to children she treats on these trips. Donations are accepted at each office.

Dr. Brian L. Waldman, Au.D., FAA

Dr. Brian Waldman is a fellow of the American Academy of Audiology, holds the ASHA Certificate of Clinical Competence in Audiology, and is a Certified Occupational Hearing Conservationist. Dr. Waldman enjoys all aspects of audiology, but has a special interest in fitting adults with hearing aids and aural rehabilitation.

Dr. Waldman received his Bachelor of Arts degree from the University of Iowa in Iowa City, IA. While at the University of Iowa, he also obtained a Certificate in Aging Studies. Dr. Waldman earned his Doctorate of Audiology degree at Northern Illinois University in DeKalb, IL. He has conducted research on the impact of concussions in athletes Dr. Waldman completed his residency at Mercy Clinic Audiology – Surgery Center in Springfield, MO. He is excited to be back in the Chicago area. Dr. Waldman is a sports enthusiast who enjoys talking about Chicago teams.

Professional Memberships for
Dr. Gina Geissler and Dr. Brian L. Waldman

  • American Academy of Audiology (AAA)
  • Illinois Academy of Audiology (ILAA)
  • International Society of Audiology (ISA)
  • American Speech-Language and Hearing
    Association (ASHA)
  • American Hearing Aid Associates (AHAA)


Hammond Office

Professional Center
7134 Calumet Avenue
Hammond, IN 46324
(219) 931-4725 or (708) 868-5585
Fax (219) 932-4028

Munster Office

10110 Donald S. Powers Dr.
Suite 202A
Munster, IN 46321
(219) 836-0022
Fax (219) 836-7922

Dyer Office

Marcotte Medical Group
15900 W. 101st Avenue
Dyer, IN 46311
(219) 365-6333
Fax (219) 365-8291