Meet the Team
Chiropractic Assistant & Office Assistant
My name is Shanna Stoltenberg, I am a chiropractic assistant and office assistant to Dr. Trenary. I have previously worked at Mason City Clinic General Surgery as a Patient Coordinator. I have grown up and lived in Manly, IA my whole life and graduated from Central Springs and continued my education at NIACC.
My favorite thing about Active Family Chiropractic is their emphasis on family. As a new mother, Dr. Trenary and the rest of the staff have made me feel comfortable and supported with the revolving door of having little ones. The staff at Active Family Chiropractic are great with every age and the patients reflect that relationship each time they come in. I enjoy the positive and bright environment at Active Family Chiropractic and I look forward to seeing our patients leave feeling better and ready to achieve the rest of their day. Dr. Trenary and Cory have had a great impact on my health journey and it’s a rewarding feeling seeing their impact on our patients.
When I am not working, I love spending time with my family. My fiancé and I enjoy riding our Harley-Davidson Streetglide when we are able to. We have a son, Cyrus, and a daughter, Lindee. We also have three dogs, Karma, Kash, and Capone. As an “active family”, Active Family Chiropractic has seamlessly fit into our lives to keep us healthy, happy, and moving!
Chiropractic Assistant & Office Assistant
My name is Renee Ring, I am a chiropractic assistant and office assistant to Dr. Trenary. I have previously worked at Northwood Kensett High School as a Paraprofessional. I grew up in the St. Ansgar IA area most of my life and graduated from St. Ansgar High School.
My favorite thing about Active Family Chiropractic is their meaning on family. It is always a good feeling to see patients leaving feeling better then when they came in and keeping them at their best.
When I am not working, I love spending time with my daughter Peyton. We enjoy riding horses and walking our dogs and going on trips. As an “active family”, Active Family Chiropractic has fit into our lives to keep us healthy, happy, and moving!
Chiropractic Assistant
My name is Raeanna Mason I am a chiropractic assistant for Dr. Trenary. I began my CA position in February 2023 after working at Mason City Clinic, General Surgery as a Patient Coordinator. I was born and raised in Mason City and graduated from MCHS.
I love working in the Healthcare industry because I am passionate about being able to help patients receive the care they need and deserve. My goal is to help create a comfortable and positive experience and help them through their care process. I enjoy meeting new patients and being able to connect and build relationships with everyone who comes into our clinic.
One reason I love working at Active Family Chiropractic is our patients, seeing everyone come in with such positivity and leaving with a smile is an amazing feeling. Also, Dr. Trenary runs a family focused office and that doesn’t just apply to our patients but for the entire team that work here. My kids and I easily fell into place here at Active Family Chiropractic as Dr. Trenary also helped resolve some of my own children’s discomforts. When I’m not working, I am keeping busy running after my two little boys, River and Journey. I love teaching them new things and seeing them grow and hit new milestones each day! I also enjoy rock climbing, traveling, and being outside as much as possible.
Massage Therapist
My name is Cory Wittman and I am a Licensed Massage Therapist and office manager at Active Family Chiropractic. I have worked in the field of chiropractic for 29 years – since my senior year of high school! I started in my hometown of Santa Cruz, California, continued when I moved to Las Vegas, Nevada for 10 years and now here I am in Mason City, Iowa. I am a graduate of La James College of Massage Therapy in Mason City.
My favorite thing about working at Active Family Chiropractic is the patients! They are the best… Their sincerity and kindness is contagious. Helping them in their quest to reduce pain and maintain overall wellness is a passion of mine. There is also nothing better than seeing a little child spring back to the doctor for a treatment, because they know how good they feel after. Their smiles are the best!
Dr. Trenary’s kindness and compassion towards his patients and staff is unmatched. He was completely supportive of my decision to attend school and become a licensed massage therapist. I have been a chiropractic patient since I was a child and Dr. Trenary’s techniques have continued to support my overall wellness and well-being.
I spend most of my time with my husband and 2 dogs and love to stay fit at the gym, dance to country music and travel! We are a very active family and love doing things outdoors, home projects, taking in local activities, motorcycle rides and booking trips to visit family or anywhere tropical!
