• Dr. Deehan - Dentist - Hackettstown, NJ
    Stephen T. Deehan
    Principal Dentist

    Dr. Deehan, a graduate in 1993 of UMDNJ, has been in practice for over 20 years. He accomplished a one-year residency at Overlook Hospital in Summit, NJ then he opened his practice in Hackettstown shortly after that. Over the years he has become certified in various fields to educate himself on the proper care needed to provide overall oral health for each and every patient. He is also a member of the Tri-County Dental Society and participates in a monthly SPEAR educational dental study club with peers to stay current with the technology and treatment in the realm of dentistry today.

    Deehan’s goal is to provide the highest quality of dentistry in a caring and nurturing environment. He strives to create an atmosphere where all employees work to create a harmonious and professional relationship between each other as well as with the patients. His ultimate desire is to provide a most enjoyable experience for each patient for the care and treatment they need to maintain excellent overall oral and total body health.

    Married for over 20 years and a father of four, he enjoys his weekends spending time with his family. He has been a coach for each of his children, taught catholic education at his local church and has taught dental health in local schools. Although wrestling is by far his favorite sport, he likes keeping up with all high school, college and pro sports. His favorite time is spent hanging with his children either on a field or at his home and it almost always includes hot wings.

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  • Diane at Dr. Deehan Dentistry Hackettstown, NJ
    Receptionist and Financial Manager

    You will always be greeted by name when you walk in the door when Diane sees you. Her pleasant manner and caring disposition will make you feel at home in our office.

    Diane, a graduate of the Warren County Dental Assisting Program and CPR certified, has been with us for approximately 15 years. Straight out of school, she started as a chair side assistant. After approximately 10 years, she decided to “try the front desk” and has been there ever since! If you have any financial or treatment questions Diane is the one who can help as she is always willing to aid our patients in understanding what they need to keep their dental health and financial wellbeing in check.

    While a newlywed of five years, Diane also has a loving son who lives in Pennsylvania. She loves to bake, spend time with her family and vacation at the beach. Her favorite pastime is riding her Harley with her husband and friends on the weekend.

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  • Vicki at Dr. Deehan Dentistry Hackettstown, NJ

    Vicki, a dental hygienist working for Dr. Deehan for 17 years, always has her patients leaving with a dynamite, clean smile! A graduate of Union County College with a hygiene degree in 1987, Vicki started her first job in Summit and then joined Dr. Deehan’s team in 1998. As an expert hygienist, she incorporates her many years of clinical experience to really aid in enriching our office. Her kindness for her patients makes for a relaxing and instructive experience.

    Vicki’s been married for 26 years and has three wonderful boys. Two of the three boys are currently in college and her third son is applying for medical school. In her free time, she enjoys being with her family, relaxing by the pool and making Italian meals for her family to enjoy for the week!

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  • Dana at Dr. Stephen T. Deehan Dentistry

    Want to leave our office with a clean smile and healthy gums, then you can’t go wrong when you make an appointment with any of our hygienists, including Dana!! She not only takes the time in our office to maintain healthy oral care, but she educates you on your home care as well.

    Dana, our newest member to the team, is a graduate of Morris County College in Dental Hygiene. She has 22 years’ experience as a dental hygienist. Her fields of practice have been with a pediatric dentist, general dentist, and periodontist. She is proficient in all aspects of dental and gum care. Dana maintains her CE credits every two years and is also CPR certified.

    Married with a 12 year old daughter and two step children ages 13 and 19, Dana enjoys on her days off spending time laughing and relaxing with her family and friends.

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  • Yvonne Diane at Dr. Deehan Dentistry Hackettstown, NJ
    Office Manager

    You will see Yvonne either at the front desk helping out, running to the store grabbing supplies, or taking pictures to update our Facebook page. A graduate of Seton Hall University in Communications, she is always working on new ways to improve the communications in the office. Yvonne handles marketing both internally and externally and works with outside vendors to keep the management in the office running smoothly.

    When she’s not at the office, she’s busy running the Deehan household! Married to Dr. Deehan for over 20 years and mother of four beautiful children, three boys and one girl, she has worn various “hats”. Over the years, along with raising her children, she has taught religious education, been a member of the LV Junior Woman’s Club, coached for “Girls on the Run” and is currently a Girl Scout leader.

    Although she delights in always having her family around her, her hobbies include exercising, reading, and creating picture books from photos taken of her family and friends.

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121 Shelley Drive, Unit 1E
Hackettstown, NJ 07840
Get Directions




(908) 852 – 6626

(908) 852 – 5141 (fax)

Emergency Line

(201) 317 – 6939

Office Hours
Monday 8 am – 5 pm
Tuesday 8 am – 8 pm
Wednesday 8 am – 4 pm
Thursday 9 am – 6 pm
Friday 8 am – 1 pm
Saturday * 8 am – 12 pm

* We are open one Saturday a month with Dr. Mansey. Please call for availability.