Cincinnati OH Dental Staff - Mt. Lookout Dentistry

The descriptions found below will allow our patients to become familiar with the professionals providing their dental care.





Dr. David N. Croop

Cincinnati, OH Dentist

Mt. Lookout Dentistry

I became interested in dentistry while undergoing several dental procedures as a teenager. As a result of those experiences, I have developed a unique practice style and philosophy. In the 28 years I have been practicing dentistry, I enjoy the long term relationships with many patients that I have cared for, some for the three decades I've been practicing. I am very interested in learning from continuing education opportunities. When I am out of the office, I enjoy teaching and advising colleagues in various study clubs, and working with the residents at The University Hospital of Cincinnati Advanced Education in General Dentistry Program.

I am a graduate of DePauw University and Case Western Reserve University School of Dental Medicine. Following graduation, I completed my General Practice Residency at St. Luke's Hospital Medical Center in Cleveland. More recently I completed a postdoctoral program at the Pankey Institute for Advanced Dental Education and the Xavier University XLAB entrepreneurial program. I am a member of the Cincinnati Dental Society, Ohio Dental Association, the American Dental Association, the Seattle Study Club (a renowned international continuing education institution), and the L.D. Pankey Institute for Advanced Dental Education Alumni Association. In addition, I have invented and developed several dental instruments and devices that will make dental visits easier for dentists and patients.

Outside of the dental office and the classroom, I enjoy spending time traveling, boating, water skiing, and kayaking with my wife and two sons. We also enjoy spending time with our two adopted rescue dogs.

Dr Ben Gosnell

Dr. Ben T. Gosnell

Cincinnati, OH Dentist

Mt. Lookout Dentistry

I was raised just south of Cincinnati in Union, KY, and live there now with my wife and dog.  I graduated from the University of Kentucky, and then completed the 'Triangle' by attending the University of Louisville School of Dentistry. Following graduation, I came home to complete an Advanced Education in General Dentistry residency at the University Hospital in Cincinnati-where I met and worked with Dr Croop.  Like him, my philosophy of dentistry involves not just high quality care, but building relationships.  I really enjoy the opportunity to help improve not only the oral health, but the overall well-being of my patients.

A well-balanced lifestyle is important to me.  When away from dentistry, my wife and I enjoy traveling and spending time with friends and family- including our dog, Hixon. I also like getting outside to camp and hike, and I try to stay active with exercise, Brazilian Jiu Jitsu, and basketball.  



Dr. Brenda Bertsch

Cincinnati, OH Dentist

Mt. Lookout Dentistry

Although a Kentucky native, I spent most of my career pursuing the many educational and professional opportunities that Ohio has to offer. I graduated from Xavier University and Case Western Reserve University School of Dental Medicine, and completed my General Practice Residency at the Veterans Administration Hospital in Louisville, Kentucky.

In 1998, I earned a Fellowship from the Academy of General Dentistry. Together, my husband, Bob, and I built and nurtured our private practice in Loveland, Ohio for 28 years. It was our greatest pleasure to serve the community. We look forward to merging our philosophies and skills with our fellow dentists at Mt. Lookout Dentistry.

My passion to serve and honor the health of all people has compelled me to pursue a committed role in the field of dentistry. When I am not practicing privately, I am providing dental services to the people of Cincinnati in many different communities. I currently work part-time with CincySmiles for their Dental Road Crew. Through this program we travel with an outfitted van to Head Start and Cincinnati Public Schools to provide dental care for low-income children.

I also provide needed services for the McMicken Health Collaboration Dental Options program. I am honored to serve the sisters of Mount Notre Dame de Namur in their health center, and have had the great fortune to be a part of the team that opened and operates a free dental clinic through the Scarlet Oaks Adult Evening Education program.

Bob and I enjoy the company of our five children and a beautiful granddaughter—as far and as wide as they roam. Outside of dentistry, I pursue many interests including expanding my knowledge of nutrition, working for world peace, and appreciating this beautiful planet on which we live through exploration of its communities, parks, and coffeehouses.


Dr. Bob Bertsch

Cincinnati, OH Dentist
Mt. Lookout Dentistry

While growing up in Reading, Ohio, I lived across the street from my dentist, Dr. Richard Matre. Because of this, Dr. Matre became a source of inspiration and was an excellent role model to a young Bob Bertsch, who was becoming increasingly interested in mechanical endeavors. Later on, I was able to incorporate that interest with a desire to work in health care in my pursuit of a career in dentistry.

I attended Xavier University and Case Western Reserve University School of Dental Medicine. After dental school, I completed a General Practice Residency at Mt. Sinai Medical Center in Cleveland, Ohio. I subsequently earned a fellowship in the Academy of General Dentistry.

My wife, Brenda, and I practiced in Loveland for 28 years and are thrilled to continue our work by joining Dr. Croop and Dr. Gosnell at Mt. Lookout Dentistry. I remain excited and intrigued by general dentistry because of its wide variations of practice and the chance to encounter a diversity of people. I am committed to sharing and furthering my knowledge, and am very appreciative of the opportunity to teach the residents at the Advanced Education in General Dentistry Program at the University of Cincinnati Medical Center. I also serve on several non-profit boards to enrich and assist the community that has given so much to us.

My wife and I still enjoy our children who are all wonderful people, but especially our granddaughter (sorry kids!). I also find time for hiking, card playing and fixing anything mechanical. 


Dr. Dale SiemerDr. Dale Siemer

Cincinnati, OH Dentist

Mt. Lookout Dentistry

Who says "You can't go home again?" I have. In fact, I cut my first tooth in our home at the top of Athens Avenue!

A Cincinnati native, I am a graduate of Walnut Hills High School, the University of Cincinnati, and the College of Dentistry at Ohio State University. I spent two years away from "home" with the US Navy Dental Corps stationed in San Diego, CA.

I came home in 1974 to practice just up the street from Mt. Lookout Dentistry with Dr. Bill Black before opening my own office on Paxton Ave. in 1983. A fire in that building on March 29, 2010, forced me to make other arrangements to continue my practice. As some may know, I also see patients in Mt. Carmel.

It is a pleasure to be back here in Mt. Lookout with Drs. Croop, Gosnell and their most capable staff allowing me to treat my patients from this area in a location that better suits their needs.  I am thrilled to see old friends from days gone by. One of the most rewarding aspects of the practice of dentistry is the relationships I have developed over the years. It has been satisfying and fun to watch families grow and be able to treat a couple of generations.

I am a father of 3 and grandfather of 3, I enjoy traveling, gardening, reading and hope to make some time to get my oils back out and pick up painting again.

**A note from Dr. Croop:

Dr. Siemer has retired as of September 2011. We still consider him to be a part of our practice as we are seeing a large number of his patients that we are pleased to welcome into the Mt. Lookout Dentistry family!


Gina, Practice ManagerGina Cincinnati Dental Practice Manager

My husband and I have 4 children and 8 grandchildren. We share most of our free time with them.

I was born with an interest in dentistry. My grandfather was a dentist and from a very early age, I knew that working in the dental field was my calling.

I have been in the dental profession for at least 38 years working both front and back office, with some breaks away to pursue work in sales and collections. I have seen the dental profession evolve over the years and can only imagine what's to come.

I have attended UC Raymond Walters for business training and Sinclair Community College for dental education. I have had numerous courses throughout the years to stay current with dental education and health and safety regulations. I am also a member of AADOM (American Association of Dental Office Managers), Dental Practice Check-up,  Dental Network, Dental Speakers, Dental Practice Management Consultants, Worldwide Who's Who, and Dental Educators, and the K2 Performance Study group (a local group affiliated with Seattle Study Club).

Honors and Awards: I have been recognized as one of the top practice managers in Ohio and ranked in the top 1% of office managers nationwide, with special recognition for practice growth expertise. In addition, I have received numerous achievement awards in my years in dentistry.

I have been lucky to have worked with some of the top dentists in the greater Cincinnati area. Additionally, I have worked with Gary Henschen of Henschen Consulting and Stephanie Daft of Mercer Consultants. Both of whose work is recognized nationally in the dental consulting profession.

Mt. Lookout Dentistry is the cream of the crop!




Sarah, Treatment  & Insurance CoordinatorCincinnati insurance coordinator Sarah

I was born and raised in Cincinnati. I live in West Chester and graduated from Lakota East High School in 2000. I attended the Institute of Medical and Dental Technology and have been working in the dental field for over 15 years.

In my spare time I am back and forth between here and Columbus, where my boyfriend is attending Ohio State University to get his MBA. Our pride and joy is Gracie, our miniature Labradoodle, who we spend lots of time playing frisbee with and just enjoying her company. I enjoy playing volleyball in a weekly league and try to stay active.


Olivia Fleckinger, Recare Coordinator

I have been working in dentistry since 2011 and I love building relationships with the patients. I have two rescue dogs named Cassie and Ranger that keep me very busy! I also enjoy cooking and baking and I studied culinary arts for several years prior to my career in dentistry.


Diane, EFDA Assistant, Department HeadEFDA assistant, Cincinnati Diane

I attended Scarlet Oaks Dental Assisting Program (1980-1982) and started working in May 1982 at Mt. Lookout Dentistry. I then attended Sinclair Community College (1992-1993) to get my Expanded Functions degree. I returned to Mt. Lookout Dentistry in April 1998 and have been here since.

I am married and have three children. I enjoy scrap booking, gardening and spending time with my family. My son and daughter-in-law recently gave me a grandchild.


Melody, Dental AssistantMelody Cincinnati Dental Assistant

I have been a dental assistant since 1982. After spending over 20 years in orthodontics helping others smile I have had the pleasure of working with the wonderful people here at Mt. Lookout Dentistry. I love working in a caring environment and find it very rewarding to make a positive difference in the lives of others. I earned a degree in Liberal Arts from the University of Cincinnati. I enjoy gardening, reading and spending time with my family and two spoiled cats. 



Carla, EFDA AssistantCarla, Cincinnati EFDA assistant

I started my dental career in 1993 as a sterilizarion lab assistant. After gaining experience, I went to Sinclair Community College for Expanded Funtions Dental Assisting. In 1996 I obtained my state board certification, allowing me to place dental restorations. I enjoy meeting new patients and learning how I can help them improve their dental health. I work hard to make my patients comfortable and relaxed. My time away from work is spent with my wonderful family and our golden retriever Lucy.  Being silly with my children always brightens my day! I look forward learning how I can help you smile! 




Kathy, Hygienist, Department HeadCincinnati Hygenist, Kathy

I graduated from University of Cincinnati Raymond Walters College (now UC Blue Ash). I have worked continuously since graduating. I am licensed to administer local anesthetics and nitrous oxide.

I am married and have two boys. I enjoy spending time with my family reading & gardening. I love watching my boys participate in their extracurricular activities.


 Angela, HygienistCincinnati Hygienist, Angela

I am originally from Huntington, Indiana. I graduated from the Indiana University Dental School in Indianapolis, IN with my Dental Hygiene degree in 1999. I practiced there until I met my husband and off we went to follow his career. We lived in Atlanta, GA for a few years before moving to Cincinnati in the spring of 2008 which is when I joined the Mt. Lookout Dentistry team.

I have been blessed with two beautiful little kids. A little girl and little boy. I love spending time with my family and we do lots of traveling to visit our extended families.

When I am not at work or taking care of my little ones I love traveling, reading, gardening and shopping.