Valley Dental Associates
9199 Reisterstown Road, Suite 206B, Owings Mills, MD 21117

John E. Longley, DDS  General Dentist

Cross Keys John Longley DDS

Education:

Dr. Longley attended Towson University, Towson, MD, and received his Bachelor of Science degree in 1999. He continued his education at the University Of Maryland Baltimore College Of Dental Surgery, Baltimore, MD, earning his Doctor of Dental Surgery in 2003.

Dental Area of Focus:

General dentistry, Invisalign certified and trained in Sleep Apnea treatment with removable devices

Affiliated/Dental-related Associations and Organizations:

Member of the U.S. Army Reserves

Volunteer & Community Involvement:

Actively involved in Cub Scouts with his sons

Interests/Hobbies:

In his spare time, Dr. Longley enjoys tennis, fitness and home improvements.
Dr. Longley genuinely cares about his patients and their dental needs. He strives to make every dental visit a positive, pleasant experience.

“I’m a dentist that loves being a dentist, and that’s a pretty cool thing”

Read What Our Patients Say
Patient Reviews
Mathew is terrific
Mark B.
Dr. Challagulla is AWESOME!!! I had my first root canal and it was better than expected. A day later and I feel no pain. Thank you guys!!!!
Tyesha H.
The staff is very friendly and the office is very clean. I had a root canal done and the pain level was about slim to none. Dr. Oppenheim is the best!!!
Denise D.
The assistant cleaning my teeth was very pleasant and very knowledgeable concerning my teeth problem and how it is affected by my diabetes.
Charles C.
Awesome! Dr. Gorman is a true professional and very detailed in his work.
Nick H.
Valley Dental Associates has a great staff….they have always been friendly and accommodating to my needs. My first time there was a dental emergency, (I did have an actual first visit appointment […]
Arlene K.
Matthew is the best dental hygienist ever!
Kimberly K.
I had my first appointment here last week, based on a recommendation. I was so pleased with the visit. The staff was friendly and professional, and I was taken back almost immediately. Dr. Gorman […]
Regina R.
The staff and Dr Oppenheimer are great. He pulled my teeth and I don’t even know it’s gone.
Verethia W.
Dr Gorman and staff are very thorough and sincerely concerned about patient dental health.
Sonia G.
I was in a great deal of pain and was able to be squeezed in imedialty! I have terrible anxiety about having any type of dental work done however, Dr. Gorman always takes the time to explain to me […]
Ashley H.
patient care, as soon as you walk to the check in desk
Lacretia C.
First impression of the office. Friendliness of the staff. Dr. Oppenheim asked me to tell him about myself, relaxing the initial meeting. I was pleased with the exam and feel comfortable with the […]
Cecelia C.
Friendly, do good work, I like the people who treat me
Roger K.
Just went for a hygienist appointment. I had the best visit! No cavities and my teeth feel great. The staff is very friendly and helpful.
Joanne P.
I was well satisfied with my diagnosis.
Hildegarde F.
I am very satisfied with the service I receive. Always courteous and conscientious of my dental care.
Ray H.
the service was excellent and my Dr have me a pain free experience.
Ashley M.
I have been seeing Dr. Oppenheim for years and he is the reason
James V.
The dental hygienist gave me a thorough cleaning and irrigation of my teeth and also made excellent recommendations.
Paul L.
Office Hours
Mon. – 8:30 AM - 7:00 PM
Tue. – 8:30 AM - 5:30 PM
Wed. – 8:30 AM - 5:30 PM
Thu. – 8:30 AM - 5:30 PM
Fri. – 8:30 AM - 4:30 PM
Sat. – Closed
Sun. – Closed

Saturday by appointment only

Phone: (443) 898-1240
Fax: (410) 581-1831
Healthcare Financing with
CareCredit
We Accept Most Insurance Plans!
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We accept most insurance plans and will be happy to help you understand the coverage that you have. We will do our best to see that you receive your maximum insurance benefits for all covered services.

No Insurance? No Worries! See our discounts and offers here

For appointments, call us at: (443) 898-1240 or
Request an Appointment
For appointments, call: (443) 898-1240
Office Hours
  • Monday 8:30 AM - 7:00 PM
  • Tuesday 8:30 AM - 5:30 PM
  • Wednesday 8:30 AM - 5:30 PM
  • Thursday 8:30 AM - 5:30 PM
  • Friday 8:30 AM - 4:30 PM
  • Saturday Closed
  • Sunday Closed
Get in touch:
  • Phone: (443) 898-1240
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