Our Practice


We take pride in your smile.

Welcome to Harbor Country Dental, conveniently located near downtown New Buffalo, MI. Here, our professionals know that dental health is not just about white smiles: it’s about having strong teeth and healthy gums. It’s about prolonging the simple joy of eating delicious things! Our mission is to help our patients accomplish these goals in a painless, compassionate, and efficient way.  By combining the latest technology with traditional techniques, we provide our patients the highest quality of care.


Hillary V. Knight, DDS

I was born nearby in Michigan City, IN, graduated from LaLumiere High School in LaPorte, IN, and received a Bachelor of Arts from Indiana University, Bloomington.  I graduated with honors from the University of Iowa College of Dentistry in 2013 with my Doctorate of Dental Surgery.  After living in Grand Rapids, MI for three years, my husband Jim and I are excited to be back in the area.  I love to learn and strive to stay current with the many advances in dentistry so I can provide quality dental care, and also be a reliable source of up-to-date dental education for my patients. In October 2017, I welcomed twin babies Grace and Daniel.  In my free time, I love to cuddle those babies and to play with my 2 year old son Michael, go for walks, practice yoga, and enjoy the summers on Lake Michigan.




Cindy Mara, RDH with local anesthesia certificate.

Born and raised in Berrien County, I reside in Saint Joseph with my husband Joseph, daughter Emily Rose, and our golden retriever “Max.”  I have a son, Brian, in Denver, CO.  My training began in my early 20’s as an assistant in orthodontics, where I developed a love of dentistry.  I received my degree in Hygiene at Kalamazoo Valley College and have been practicing in Harbor Country for close to 20 years.  I pride myself on building friendships with my patients of all ages, providing a pleasant and relaxed atmosphere with music and gentle dental techniques.  I strive to educate clients on optimum personal daily dental care to prevent disease and to ensure their regular dental check-ups are quick and comfortable, so patients leave with their best and brightest smile!


Lori Bulthuis, Dental Assistant

Hi, I’m Lori! I live in New Buffalo with my dog Barkley and we love being part of this beautiful community! I have been in Dentistry for 38 years ~ I LOVE DENTISTRY! There have been so many positive changes in Dentistry over the years that the dental chair is no longer that “scary place” to be. I look forward to seeing your Beautiful SM;)E soon!




Samantha Smoker, Receptionist

Hi, I’m Sam! I was born and raised in Michigan City and continue to reside there with my little piglet Odin! I have worked in other aspects of the healthcare field for 4 years. I love baseball (Go Cubs!), listening to live music of all kinds, and spending time with family and friends. I am super thankful that my dental career gets to start with this awesome team. I look forward to seeing all of you soon!


Patti Marth , Office Manager

I was born and raised in Michigan City, IN and have lived in surrounding areas of LaPorte County all my life.  My dental career started with Herb Tietzer, DDS in Michigan City while I was in high school.  I realized early on that I enjoyed working in the dental field and continued with his practice for thirteen years.  I attended Purdue University Northwest campus for Business Administration, and thereafter worked as Business Manager for Dr. Jay Blackburn’s newly opened practice, where I've been over 32 years until his recent retirement.  I am now pleased and honored to be a part of Dr. Hillary Knight’s staff as Office Manager.  In my spare time I enjoy spending time with my significant other, Steve.  We enjoy cooking together, spending time with friends, listening to music, and walking with my dog Riley, the love of my life.  I also enjoy reading, crocheting and sometimes just doing nothing but relaxing!