The Best Dentists in Portland, MI
Dr. Mauren, Dr. Thelen, and their staff are dedicated to providing you with a pleasant visit and results that you’re proud to show off. Our administrative staff is ready to help you with questions about scheduling, financial policy and insurance, to make that part of the process as simple as possible.
Here are just a few things that make our practice unique:
Care and Commitment
From the front office to the exam room, our practice is made up of professionals who take your oral health very seriously. Using state-of-the art equipment designed with safety and efficiency in mind, we are able to offer top-notch care. As you walk through our office, you will notice that everything is clean, comfortable and thoroughly sterilized. Your safety and comfort are our priority.
Honesty and Affordability
We know that the cost of care can be confusing. In addition to offering a number of in-office payment options to fit your budget, we also give you up-front cost information on your treatment ahead of time. We are in-network with a variety of insurance plans, and we offer various forms of dental financing with credit available in time frames that fit your needs. We are happy to help you navigate your dental insurance and alternative payment options.
Easy Access to Dental Care and Information
We know that your time is valuable to you, and that’s why we offer extended office hours on select days, dental appointment reminders, and a quick turnaround time on calls and appointment requests. We are happy to answer any questions or concerns in the office, over the phone or via email.
Comfort
We respect and understand that many patients experience dental anxiety. At our office, we do everything we can to make sure that your experience is as enjoyable as possible. By communicating clearly what you can expect during your treatment, we are often able to alleviate dental fear. We encourage you to bring headphones and music to listen to during your treatment and ask us about dental sedation options.
Personalized Service
At our practice, you aren’t just a patient. We take an interest in you and your oral health needs. We think you’ll find a friend in your dental professional during your visit!
Why Choose Portland Dentistry By Design
- Care and Commitment
- Honesty and Affordability
- Easy Access to Your Information
- Comfort
- Personalized Service
Meet Our Dentists

Dr. Morgan Thelen
Dr. Thelen was born and raised in Portland. She graduated Summa Cum Laude from Aquinas College in 2012 and attended the University of Detroit Mercy, earning her DDS in 2016, where she graduated in the top 10% of her class. She is a member of the American Dental Association, Michigan Dental Association, and West Michigan District Dental Society, and has spent the last 6 years serving as a dentist in surrounding communities.
In her spare time Dr. Thelen enjoys spending time with her family and friends, reading, and playing sports, especially softball, basketball, and golf. And like Dr. Mike, she is a huge MSU fan and loves to cheer on the Spartans!

Dr. Morgan Thelen
Dr. Thelen was born and raised in Portland. She graduated Summa Cum Laude from Aquinas College in 2012 and attended the University of Detroit Mercy, earning her DDS in 2016, where she graduated in the top 10% of her class. She is a member of the American Dental Association, Michigan Dental Association, and West Michigan District Dental Society, and has spent the last 6 years serving as a dentist in surrounding communities.
In her spare time Dr. Thelen enjoys spending time with her family and friends, reading, and playing sports, especially softball, basketball, and golf. And like Dr. Mike, she is a huge MSU fan and loves to cheer on the Spartans!
Meet Our Team

Tori, RN
Administrative Staff

Erika
Treatment Coordinator

Sharon
Treatment Coordinator

Taylor
Registered Dental Hygienist

Morgan
Registered Dental Hygienist

Jill
Registered Dental Assistant

Jen
Dental Assistant
