Our team is committed to providing fantastic patient experiences!

We strive to maintain a modern, comfortable atmosphere at our dental office in Petoskey, Michigan. We invite you to check out our virtual office tour below or schedule a visit with our dentists to see our office in person!​

Our Amazing Team Members

Our friendly, outgoing, knowledgeable and experienced team strives to make each one of our patients feel comfortable and relaxed in the dental chair.

Meet Dr. Driscoll

Dr. Johnna Driscoll graduated from the University of Michigan School of Dentistry in 1990 and has been practicing in Petoskey her entire career. Dr. Driscoll continues to expand her knowledge of dentistry by taking courses from leading clinicians like Drs. John Kois, Frank Spear and David Hornbrook. She also regularly attends dental meetings sponsored by the MDA, ADA®, AACD and most recently the AADSM (American Academy of Dental Sleep Medicine). She feels it is important to educate herself and her team about new materials, techniques and technology so that together, they can provide the best care possible.

Dr. Driscoll is trained and certified by the AAFE (American Academy of Facial Esthetics) and has been a member since 2018 | Levels 1, 2 and 3 for Botulinum Toxins, Filler, Smooth and Lifting threads. She also has a Master Lips Course, Eyes and Course Training to treat TMJ/Orafacial Pain with botulinum toxins. Dr. Driscoll also attended Modern Beauty Con 2022 with top injectors from all over the world.

On a personal note, Dr. Driscoll has three children: a married daughter in San Francisco along with her first grandson, a son living in St. Ignace and a daughter in school in Harbor Springs. Dr. Driscoll loves living in Northern Michigan, and in her free time, she likes to read, hike, bike, ski and bake cookies for everyone to enjoy.

Dr. Driscoll also travels across the US for training and flies instructors in to have training done in her own office.

Meet Dr. Mercer

Dr. Mercer is a Michigan native raised in the Detroit area. He received his Bachelor of Science from Lake Superior State University in 1973 and Doctorate of Dental Science from the University of Detroit in 1979.

As a practicing dentist in St. Ignace for over 30 years, Dr. Mercer has extensive training in cosmetic, prosthetic and implant dentistry along with additional training in orthodontics and laser surgery. He focuses on all aspects of family and restorative dentistry, including implant-retained dentures, partial dentures, crowns and bridges.

Dr. Mercer is a member of the following associations: the American Dental Association®, Michigan Dental Association, American Academy of Osseointegration, American Academy of Cosmetic Dentistry, World Clinical Laser Institute and American Academy of Dental Sleep Medicine. Dr. Mercer is married to Dr. Johnna Driscoll. They have three children: Eryn, Alex and Julie Marie.



Hygiene Coordinator

Brenda joined Dentistry by the Bay in 2019. She enjoys being part of and working with an awesome team! In her free time, she enjoys camping, snowmobiling and buggy riding.



Registered Dental Hygienist

Kelley graduated from Lansing Community College with a degree in Applied Science and Dental Hygiene in 1996. She believes that dental health is important to the overall health of a person and works to help people understand the health of their mouth and find solution’s that work for them. She has a great appreciation for the team of dental professionals that work together to help each other do our best work at Dentistry by the Bay.

In her spare time(HAHA) she enjoys spending time with her wonderful husband, going hiking, traveling, learning new things, trying new things and looking forward to what amazing things life has in store.


Registered Dental Hygienist

Hailey graduated from Ferris State University with a bachelors of allied health, an associate in applied science and dental hygiene, and a certificate of gerontology. She works hard to educate and motivate her patients on the overall health of their oral cavity. Hailey enjoys working together with her team and creating a welcoming environment for each patient!
In her free time Hailey enjoys being outdoors with her friends and family. A number of different activities keeps her busy year-round. Playing softball, boating, camping, snowmobiling, and swimming with her 2 (soon to be 3 pups). She as well loves hunting, fishing, and exploring outdoors with her amazing and hardworking boyfriend, Tyler.



Dental Assistant

Bethany joined Dentistry by the Bay in June 2016. She is certified in taking dental X-rays, and she likes to help our patients deal with their dental fears because she knows what it is like to be scared at the dentist’s office.

Bethany has two sons and two dogs, and she enjoys camping, boating and four-wheeling in her spare time.


Dental Assistant

Amanda was blessed to join this amazing team in 2017. She truly enjoys getting to know all the patients on a personal level. When patients come to the office, her top goal is to make them feel welcome and cared for.

Amanda is married to her amazing husband, Shawn, and they have two dogs. As a Michigan native, Amanda enjoys spending time outdoors and takes advantage of each season. Boating, kayaking, snowmobiling and four-wheeling are just a few things she likes to do in her free time.



Clinical Administrator, Registered & Certified Dental Assistant

Kacey feels blessed to have joined Dentistry by the Bay in 2007 when she moved here to Petoskey. Her role here has evolved over the years, taking her out of her comfort zone of assisting and putting her in management, marketing, social media and other administrative duties.

Kacey is able to utilize her business degree from Baker College with these expanded office duties. She continues to expand her knowledge with continuing education courses in all aspects of the dental field.

Kacey loves every aspect of what she does: where she works, the team she works with and all of the amazing patients that we have here! She enjoys being a part of this practice and growing with it. She has always taken a liking to the dental world and enjoys learning all she can. When we started offering skin care, she could not wait to expand her knowledge and start learning. Here at Dentistry by the Bay, she feels we are always held to our highest potential and pushed to be the best we can be for the patients. She wants to make every aspect of each patient’s visit memorable in a great way for them. She wants patients to want to talk and refer their friends and family to us because of the excellent care they received from the minute they walked through our door to the very end of their appointment.

Kacey has taken many different continuing education courses, some of which include orthodontics, temporomandibular dysfunction, sleep apnea care, OSHA, appliance therapy, TRIOS scanning and social media.

Kacey has an amazing and talented husband. They have an adorable, smart and hilarious daughter who was born on Christmas Day. She is a proud aunt to a handsome nephew and adorable niece. She enjoys Jeeping all over Michigan with her family and friends!

Call us today to schedule an appointment with with our dentists, Dr. Johnna Driscoll and Dr. Mark Mercer, and learn more about dental care in Petoskey, Michigan.