Dr. Annette callejo

Doctor Annette Callejo

Dr. Callejo is a long time Ohio native. She grew up in Dayton and finished her undergraduate degree from Bowling Green State University. In keeping with her “Buckeye” roots, she received her DDS degree from The Ohio State University in 1996, and then returned to the Miami Valley for her general practice residency at the Veterans Administration Hospital.

After finishing at the VA Hospital, Dr. Callejo settled in Springboro and practiced in Franklin. After 13 years there, she always longed to be in her hometown, Springboro. Springboro has such strong community ties that it was only natural to want to be a part of the community, professionally as well as personally.

In January 2011, we relocated to Springboro. Callejo Dental was born, and became an outlet for continuing to do what she loves, practice dentistry. Your experience at Callejo Dental is gentle and calming. As a perfectionist, she is in touch with her artistic and creative abilities, which shows in her work. Her patient’s speak of her track record, as consistent and informative, with the feminine touch that creates an ease to your appointments. 

She believes that the dental profession is continually changing and improving; therefore, she stays at the forefront of continuing education courses to insure the highest level of care for her patients. She looks forward to getting to know each of you personally, and building a trusting and lasting relationship.

Associations: American Dental Association, Ohio Dental Association, Academy of General Dentistry, International Association of Orthodontics, American Academy of Facial Esthetics


Jenny Mazzola

Orthodontic Tech &
Dental Assistant


Jenny brings years of dental expertise and a passion for exceptional patient care. Jenny has been an orthodontic tech for over 25 years and now has expanded her knowledge by becoming a chairside assistant for Dr. Callejo. Jenny says that her favorite part about joining the Callejo Dental team has been the sincere comradery amongst these wonderful women.

Jenny and her husband, Rob are avid golfers and our resident foodies. They loved spending time with their 5 amazing grandchildren. They definitely keep these two young at heart.

Andrea Vanover

Dental Assistant


Andrea started with Callejo Dental in 2007 as an extern from Miami Jacobs.  We loved her so much that we brought her back to join our team in January 2016.  Andrea will make you smile throughout your entire visit with her gentle and sweet personality.  She also adds an insightful dental knowledge and years of expertise to our team.  Her favorite aspect of working in the dental field is being Dr. Callejo’s right hand.  They are so synchronized that can anticipate what Dr. Callejo needs before she asks.  She’s amazing.  She is at natural at what she does and has a true love for patient care.

Andrea and her husband, Blake have two beautiful daughters, Ava and Austyn. Together, the four spend as much time as they can outdoors.  She loves watching their daughters play t-ball and swim, but their true passion is shopping. 

Rachael Elkins R.D.H.

Registered Dental Hygienist


Rachael graduated from Sinclair’s dental hygiene program in 2012. Never have we seen before, someone that truly loves and lives her profession as a dental hygienist. She is always learning and sharing her knowledge to help her patient keep their smiles beautiful and healthy. A true philanthropist at heart, Rachael takes her love of dentistry to help the less fortunate. Rachael has traveled to Mexico for a dental mission trip where she worked on kids and adults who do not have the access to regular dental care. Rachael plan’s to organize another trip in the near future and get the Callejo Dental crew on board.

Rachael is from Springboro, and currently lives in Dayton with her husband and their baby boy, Oliver. In her spare time she loves to travel, swim, garden, and spend time with her family and friends.

Chanda “Kay” Heater

Office Manager


The first person you will meet at the office is Chanda. With her contagious laugh and personality, patients are always greeted with a smile. She is always willing to help our patient’s reduce their anxiety with her vast knowledge about dental insurance coverage. 

With 26 years of dental experience, 15 of those years have been by Dr. Callejo’s side. She said that she has been with Dr. Callejo for so long, because she admires the ways she cares for her patients and her staff. Everyone is like family to her.

Chanda has been married to her husband, Chuck for 27 years. Together, they have two daughters, Megan and Lexi. 
Chanda’s special talent is her knowledge of TV shows and trivia. She enjoys bike riding and spending time with her dogs.

Dottie Burks

Business Manager


Dottie is the backbone of the office. Although she is behind the scenes, her presence is always felt at Callejo Dental. Dottie has been with Dr. Callejo since the very first day she went into private practice. Dr. Callejo says that Dottie is the hardest worker she knows. She enjoys working in the dental field, because the profession is always changing and evolving. This is always a challenge, and Dottie loves a challenge. More importantly, she loves the relationships that she has formed with our patient’s over the years.