Our Staff

Dr. Clark (1)

Dr. John Nicholas Clark was born and raised in Shirley, Arkansas.  He graduated from Shirley High School in 1998 and attended the University of Arkansas at Fayetteville, graduating in 2003 with a Bachelor of Science degree in Biology.  Dr. Clark was accepted into the University of Tennessee College of Dentistry in Memphis during the fall of 2005 and received his Doctor of Dental Surgery degree in May 2009.

Dr. Clark is married to Dr. Kristin Dumboski Clark, an Orthodontist.  They enjoy an active life with their two dogs, Porkchop and Sue-E.  Dr. Clark is an avid sports fan who enjoys attending many Razorback games.  His other leisure activities include spending time on the lake, travel, staying active outdoors or at the gym, and spending time with family and friends.


Dr. Clark has taken an active role in the dental community.  He currently belongs to several local and national dental organizations, including the American Dental Association, the Arkansas State Dental Association, and the Central District Dental Society.

Dr. Clark recognizes the unique treatment needs of each individual patient.  He believes that excellent patient care requires both exceptional skill and compassion.  Since he began practicing dentistry, Dr. Clark has stayed up to date on the latest advances in the dentistry through many hours of continuing education courses in order to provide the most current and comprehensive care possible for his patients.

Dr. Clark appreciates the time you have taken to visit this site in order to learn more about our dental practice and the services we can provide to help you achieve optimum oral health.


Deana Priest

Deana Priest, RDH
Dental Hygienist

Deana was born and raised in Little Rock. She graduated from the University of Arkansas for Medical Science in 1999 with a Bachelor of Science in Dental Hygiene. She has practiced in central Arkansas for 15 years and has been with Montgomery Heathman, DDS for 2 years.

Deana’s passion is health care, and she loves educating the public regarding their periodontal health in relation to their overall health.

She is an avid Razorback fan and attends as many games as possible. She adores animals and rescue dogs. Deana’s current pet family includes 2 rescue dogs:  Macey, an eight year old boxer, and Daisy, an eight year old golden retriever mix.

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Lenny Dudley, RDA
Office Manager

Lenny graduated from Pulaski Technical College in 2011 as a Registered Dental Assistant.  She was voted as the “Most Outstanding Student” in her class.  Following her graduation, she worked as a temporary dental assistant in several different offices.  She started working for Dr. Heathman in January, 2012 as his Office Manager.  Dr. Heathman informed her that she can retire when he retires.

She is married to Sean Dudley and has 2 children, Brandon and Kristen.  Sean and Lenny are the Assistant Pastors of  their church and are very active in the duties that requires.  They are also a big part of the Prison Ministry.  Lenny spends her weekends delivering bread to the schools with her Wholesale Bread Company.  She loves spending time with her family and friends, playing Golf, Mexican Train and fishing.

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Ashleigh Overton, RDA
Dental Assistant

Ashleigh is an Arkansas native.  She received her Registered Dental Assistant licensure in 2007.  She has worked with Dr. Heathman since 2011 and plans to continue her career with him changing the oral and overall health of people at Interdisciplinary Dental Therapy.

Ashleigh and her son just bought their first home and are so excited on what the future holds for them. Outside of work, she loves spending time with her family, enjoying anything outdoors, and calling those Hogs.



Amber Lynch, RDA
Dental Assistant

Amber was licensed in 2011 from Pulaski Technical College. She has been working for Dr. Heathman for a little over a year, multi-tasking the front desk, insurance and dental assisting. She started out in the Sheridan office and then transferred to the Little Rock office to assist with the front desk and assist when needed.

She is engaged to James Pearce and has a dog named Lealand. They spend most of their time listening to live music and camping in the great outdoors.


Lindsey Johnson, RDA
Dental Assistant

Lindsey started working with Dr. Heathman in May, 2015. She has previously worked with Ortho, but is doing a tremendous job working with the doctors in our General Dentist office. She graduated from Eastern College in 2013 as a Registered Dental Assistant.

She loves riding her horse and spending time with her family. She also loves the challenge of fishing in tournaments.


Dr. Heathman and his compassionate staff strive to go above and beyond your expectations to provide every patient the best dental experience possible.

We achieve this by accommodating our patients in a peaceful, comfortable environment and keeping our focus on patient care.

Customer Services

How To Find Us

Montgomery Heathman DDS and Associates
9200 Chicot Rd, Little Rock, AR 72209