Meet Our Staff | John Amato Nissan

Click on one of the people below to find out more information.


Jeff Bowles
Business Manager

Katrina Kerkman
Internet Manager / Business Manager
(414) 964-4400

Katrina has worked at John Amato Nissan since February of 2011.  She has a degree in History from the University of Wisconsin-Eau Claire and can drink an iced coffee from Starbucks year-round.  In her free time she enjoys cheering on the Packers and Brewers with her husband and spending time with her Labradoodle, Reggie.  



Service Department

Matt Czaplewski
Service Manager


Sales Managers

JR Amato

Hi, my name is JR Amato.  I am originally from the Milwaukee area, more specifically Brookfield.  Growing up I was a competitive ski-racer and also enjoyed water sports like wakeboarding and water skiing.  I studied Accounting at the University of Colorado and graduated in 2012.  Although my last name is Amato, I was not involved in the business until my last years of college.  I really enjoy being a part of the car business and feel like I am always learning something new.  When I do find time to pull away from the store you will find me on a body of water kite-boarding or watching football.

Adam Finley
New Car Manager
(414) 964-4400

Adam is about to celebrate his one year anniversary with John Amato Nissan!  He is a long-time Nissan fan and spends his free time off-roading in his Xterra!  It was a sad day for Adam when Nissan stopped producing the Xterra.  Adam also enjoys shopping and tasting fine whiskeys.

Dale Thiessen
Pre-owned Sales Manager


Sales Consultants

Steve Sayles
Sales Consultant
(414) 964-4400

Ken Craig
Sales Consultant
(414) 964-4400

Marlon Loving
Sales Consultant

Marlon has been with John Amato Nissan since May of 2014.  He is a U.S. Navy Veteran who served aboard the USS Saipan (LHA-2).  He completed two tours of duty in Iraq and one in Somalia.  He served for 9 years and 8 months.  We are very proud to have a veteran like Marlon on our staff!  Marlon keeps busy outside of work with his wife, Shantee and seven children.  When he isn't working, he is a visual artist and loves to fish!

Julius Jackson
Sales Consultant
(414) 964-4400

Ben Bonesho
Sales Consultant


Internet Consultants

Jim Drow
Internet Consultant


Parts Department

Steve Vinohradsky
Parts Manager
(414) 964-4400

Steve began his automotive career in 1965 at Hub Auto and moved into management by 1968.  He has been at the Glendale location since 1996 and stayed on when it was purchased by John Amato in December of 2000.  Steve has been married for 28 years and has four children.  We were saddened by the passing of one of his daughters about four years ago.  Steve and his wife have a total of 12 grandchildren!  In their free time, Steve and his wife enjoy any aspect of Aviation and have belonged to the Experimental Aircraft Association since 1977.  They also spend their time around Indy Cars, their family, and their church.  Steve is a valued member of our team who always has a smile and is always willing to assist his co-workers.