Our Doctor

James P. Koshick, D.C.

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 Dr. James Koshick is the practice owner since 1990 and a graduate of Palmer College of Chiropractic in Davenport, IA. He graduated as president of his class with international academic honors. Dr. Koshick is not only board certified in chiropractic but specializes in chiropractic rehabilitation and orthopedics. Having completed post graduate studies in both fields through the National College of Chiropractic in Lombard, Illinois. Dr. Koshick firmly believes that you must first identify the source of your pain before you can create an effective treatment plan. Dr. Koshick is very friendly and engaging but will take your case seriously. Dr. Koshick also spent nearly ten years on the Wisconsin Chiropractic Examining Board (WCA) serving the people of Wisconsin and the chiropractic profession. He looks forward to the opportunity to serve you, too. 

Our Therapists

Becca | Massage Therapist

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Becca is a board certifed massage therapist specializing in therapeutic, deep tissue, sports massage, and myofascial release. She studied at the Wisconsin School of Massage Therapy where she graduated in 2009. 

Amy | Chiropractic Technician

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 Amy has her associates degree from Herzing University and is certified as a chiropractic radiologic technologist as well as chiropractic technician. She receives regular continuing education from the WCA to ensure that you receive the utmost quality treatment while following out your doctor’s plan of care. Amy administers various treatments from electrical stimulation, therapeutic ultrasound, and even mechanical traction. She really takes the time to listen to your concerns and communicates directly with your doctor to ensure the highest comfort possible during the treatment process.

Our Office Staff

Jillian | Front Desk

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Jillian operates the front desk and is often the first one you speak to on the phone! She handles questions regarding scheduling, billing, and medical records. She's also quickly earned a reputation at our office as our in-house IT expert. Since she began in November, Jillian headed up a large project to overhaul and update all of our computer systems as well as handling network updates.


In her free time, Jillian and her family enjoy all things outdoors whether it's fishing, camping, hiking, or horseback riding.

Rena | Office Manager

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Rena doubles as our office manager as well as our billing specialist. She is highly knowledgeable in all things billing and takes the time to listen to your questions and concerns.  Everything from informing you of your initial benefits to answering in-depth insurance questions, you can have complete confidence that everything will be expertly handled during your treatment at New Berlin Chiropractic.