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Dentists & Staff

Get to know the friendly dentists and staff here at Shoreview Dental, located on Staats Lake in Keizer.



Dr. Steve Duffin – Owner

Prior to beginning his distinguished career in dentistry, Dr. Steve Duffin graduated from the University of California at Los Angeles (UCLA) with a Bachelor in Microbiology. After graduation, Steve attended Emory University, where he earned a Doctor of Dental Surgery degree in 1983. Steve also served as the President/CEO/Dental Director of one of the largest Medicaid-provider networks in Oregon from 1994 to 2006.

Additional Training & Experience

  • Dental Education in the Care of Persons with Disabilities (DECOD) program at the University of Washington
  • Training program in Hospital Dentistry at the University of the Pacific
  • Oral Sedation for the Dental Patient program at UCLA
  • Advanced Cardiac Life Support certification
  • Pediatric Advanced Life Support certification


Dr. Marie Baumgartner – Dentist

Born and raised in the Portland/Salem area, Dr. Marie Baumgartner has local roots. She attended Walla Walla University in Washington, earning a Bachelor of Science degree in Mathematics. Later, Marie continued her education at Loma Linda University School of Dentistry in California, where she earned her Doctor’s degree.

Marie enjoys outdoor activities such as gardening, kayaking, and hiking. She also enjoys spending time with family and friends.


Dr. Jennifer Rosales- Dentist

Dr. Rosales is a graduate of Oregon Health Sciences University with an undergraduate from Western Oregon University. She has a research background and has authored/ Co-authored many research papers. Dr. Rosales is fluent in Spanish which she learned during her additional studies abroad. Along with spending time with her children and family, running marathons, and traveling, Dr. Rosales is passionate about giving quality care and building relationships with her patients.


Dr. Richard Roberts – Oral Surgeon

Dr. Richard Roberts earned his Dental degree from the University of Missouri in 1993. After completing his Oral and Maxillofacial Surgery internship at Louisiana State University, Richard finished his Oral and Maxillofacial Surgery residency at the University of Rochester in 1998. Richard was involved in the Oregon Society of Oral Maxillofacial Surgeons for eight years and finished serving as the Immediate Past President in April 2013.

A family man if ever there was one, Richard loves to spend lots of time with his wife and five children. He also enjoys coaching his children’s various sports teams.



Tiffani K. – Office Manager

Shortly after graduating from high school, Tiffani earned her EFDA Dental Assisting License from Concorde Career College in Portland. She worked as lead Dental Assistant at Gentle Dental for ten years before coming to Shoreview Dental in 2006. Tiffani took over the position of Office Manager in 2008.

In her spare time, Tiffani enjoys spending time with her husband and two daughters, as well as tending their small farm, Crossfit, traveling, and quad riding.


Denise V. – Registered Dental Hygienist

Denise graduated from Pacific University in 2014 with her degree in Expanded Practice Dental Hygiene. Upon graduation, she received the Hue Freddy award for being top-of-her-class for all four years. Denise is fluent in Spanish, and is often told that she has a “gentle touch.”

In her spare time, Denise enjoys working out, shopping, and spending time with family and friends.


Jonalee P. – Registered Dental Hygienist

Jonalee has been a dental hygienist here in Oregon for 30 years. She has been with Shoreview Dental since mid-2013 and is a very valued member of our team. Jonalee is well-versed in patient education, planning treatments with the dentist, training, and customer relations. In 2009, she was the clinical instructor and advisory board member in the Dental Health Science Program at Pacific University. Jonalee also has a knack for understanding patient’s needs.


Tiffany Z. – Lead Dental Assistant

Tiffany has been in the dental field since 2005 and has been Shoreview’s Lead Dental Assistant since 2009.

Tiffany takes pride in building relationships with her patients. Her outgoing personality and caring nature help our patients – even the most fearful – relax and feel comfortable during their treatment. Tiffany is also a jack-of-all-trades – assisting Dr. Baumgartner and Dr. Roberts, as well as helping with extra office duties.

Outside of the office, Tiffany enjoys spending time with family and friends, leading music at her church, and seeking adventure in the great outdoors.


Valerie J. – Dental Assistant

Valerie graduated from Concorde Career College in Portland before joining the Shoreview Dental team in early 2012. She enjoys her career as well as the opportunity to meet people from all walks of life.

In her spare time, Valerie enjoys staying active at the gym, playing volleyball, and being with friends and family.


Anel M. – Dental Assistant

Anel received her Dental Assisting Certificate at Concorde Career College in 2015 and soon joined the Shoreview Dental team. She is a people person, striving to do her best to make everyone feel at home here at Shoreview. Anel is a gentle presence, but a strong addition to our team.

In her spare time, Anel loves to be with her family.


Peggy B. – Receptionist

After years of working with disabled children, and in real estate, Peggy joined Shoreview Dental in 2011. Peggy often uses her skill in working with children, and she enjoys the patients that she meets every day at Shoreview.

In her spare time, Peggy values spending time at the beach with her husband and grandchildren.


Kelsey V. – Receptionist

Kelsey has been performing receptionist/front desk duties directly with customers since 2008. She has been with Shoreview since March 2014 and is a great addition to our team. She is a strong planner and problem solver with the ability to adapt to any situation.

Kelsey loves to spend time with her family on the dunes riding quads and camping.


Christee H. – Receptionist

Christee is not only a dental receptionist but a licensed Dental Assistant. As such, she is very knowledgeable in all aspects of the dental field. Christee works primarily with Dr. Baumgartner and her team, putting patients at ease and brightening our office with her personality.

Christee has a heart for helping people and has participated in several overseas mission trips.

The entire team of dentists and staff at Shoreview Dental is ready to give you the quality dental care that you’ve always wanted. So why not call us today to schedule an appointment?