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All staff members are C.P.R. certified.

Nav Balsara

Audiologist. Reg. CASLPO

Nav has worked as an Audiologist for the past 25 years. He was born in India, but has lived in Canada for last 50 years. He now lives in Newcastle Ontario with his wife and family.

Nav attended the University of Guelph B.Sc.
As well as Idaho State University for his Master’s in Audiology
He spent 4-5 years working in large teaching Hospitals including, Toronto General, Mount Sinai and Sunny Brook.
The following 2-3 years he worked for others in private practices’. After that he worked for 4-5 years as an Industry Representative before becoming the owner of Professional Hearing Services and Hogan’s Hearing Aid Centre.
Nav is a member of the College of Speech Language Pathologists and Audiologists.

John Vlad

Audiologist, M.A., A.u.D.

John is 41 years old. He has two wonderful kids, loves all things Cleveland and his favorite food is chicken wings.

John has been in Audiology for over 13 years. He has worked mostly in private practice and ENT testing. He has worked in a large variety of settings and offices.
John graduated from Carleton University in 2000 with a B.A. in English Lit , as well as graduating from Kent State University in 2003 with an MA in Audiology. In 2007 he graduated from Salus University for Au.D Audiology.

Karin Lowe

Audiologist, Certified with SAC

Karin is a mom of 3 loves to bake, hike, travel and be creative.  She also maintains a healthy lifestyle.

Karin has a B.Sc. degree from U of T.  She also completed a Specialist program in Nutritional Sciences and a minor in Linguistics.  Karin received her M.Sc. degree from UBC for Audiology and is a Certified Audiologist, Aud (C ), with SAC (Speech-Language and Audiology Canada)

Being in this profession since 1996, Karin has worked in private practice in Toronto from 1996- 2002 with primarily pediatrics.  As well as Co-owning her own private practice clinic in Cobourg from 2002-2015 (primarily geriatric), she has worked in ENT clinics for various Doctors and Specialists.

Karin has been with Professional Hearing Services since June 2016.

Eric Kwan

Hearing Instrument Specialist

Eric is from Markham Ontario. He is a Hearing Instrument Specialist with Professional Hearing Services in our Ajax, Cobourg, Whitby and Scarborough locations.

Eric enjoys playing tennis and badminton, and loves Sushi.

His Education includes 3 years at George Brown College for the H.I.S. program.

Eric has been with Professional Hearing Services for 6 years this July. He completed his first year with us as a H.I.D. (Hearing Aid Dispenser), while completing his 1000 hrs to become a H.I.S. He is a registered member of AHIP as well.

Helping patients, Eric performs hearing tests, hearing aid fittings, and can troubleshoot hearing aid problems. He also helps improve patients hearing through counseling, hearing aid amplification and with assistive hearing devices

Christina Weaver

Hearing Instrument Specialist
Reg. H.I.S.

Christina is from Bowmanville, Ontario

She has worked at our Bowmanville, Newcastle and Scarborough locations. For the first 2 years, Christina has worked at Professional Hearing Services as a CDA (Communicative disorders assistant), while taking the H.I.S. course.

Christina graduated from the University Of Ontario Institute Of Technology with a Bachelor of Health Science, and then continued her education at Durham College to become a CDA. She then graduated from Grant MacEwan University as a Hearing Aid Practitioner.

As a Hearing Instrument Specialist, Christina hopes to “help to improve the hearing of our clients through counseling, amplification and assistive listening devices by conducting hearing tests, fit hearing aids and finding solutions for hearing aid problems”

Elisabeth Amos

Business Manager/

Elisabeth is an individual who enjoys using her skills in everyday life. She loves being an “Oma” and playing with her grandkids. She loves a challenge and being active.
After graduating high school, Elisabeth received her Business Degree from Sir Sanford Fleming for Accounting, followed by Advanced Business Consultant Certification from Confederation College.

Elisabeth has been in the book keeping business for over 20 years, her experience includes, Loan Officer Collection, Administrator, Small Business Consultant, Insurance and Ministry of Finance.
She has worked with Professional Hearing Services for over 11 years now, making sure all accounts and business operations run efficiently.

Teri Douglas


Teri is a family focused individual and a travel enthusiast.  Proud Grammie of 3 Baby Grands; Elijah, Ava and Noah.

She Attended CLC and Durham College, studied Accounting, Business Applications, Computer Programming and Web Design and Development.

Teri has worked in customer service and sales most of her life, either in retail management or in one of several family businesses.  She has been employed with Hogan’s Hearing Aid Centre for 15 years.  Her role at the front desk is to welcome clients and provide them with service, information and direction.  She works diligently to keep daily operations running smoothly and efficiently, and keeping  the clients smiling.

Teri is a proud Lions Service Club member and enjoys supporting the community with her time and efforts.






Bonita loves the summertime and finds there is nothing better than reading a book, swimming, or gardening while tanning in the back yard.

Bonita is a certified Personal Support Worker and is also First Aid/ CPR certified.

She has worked for Professional Hearing Services for 10 years but has worked in this profession for 15.   In that time she has met all kinds of very nice people and feels it are a good experience and a great feeling when we can help with their hearing needs.

As an Administrative Secretary Bonita has many important tasks, which include booking hearing test appointments, billing Insurance companies, completing Government forms, as well as entering receivables and payables.  Also answering the phones and help patients with concerns and questions is an important part of her duties.


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Don’t let a hearing problem prevent you or a loved one from enjoying life to the fullest!


1371 Neilson Road, Suite 317A
Scarborough, Ontario, M1B 4Z8
Phone: (416) 286-9800


601 Harwood Ave. South, Unit 106
Ajax, ON, L1S 2J5
Phone: (905) 428-7555


220 Dundas Street West, Suite 405
Whitby, ON L1N 8M7
Phone: (905) 666-8000


222 King St E, Suite 1103A
Bowmanville, ON L1C 1P6
Phone: (905) 623-1994


300 King Ave. East
Newcastle, ON, L1B 1J8
Phone: (905) 987-5252