Dental One Associates of Cross Keys
2 Village Square, Suite 250, Baltimore, MD 21210

John E. Longley, DDS  General Dentist

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
Outstanding service and customer care.
Neville G.
Zack's recovery is going very well!
Zachary B.
The staff provided excellent customer service. It was great meeting a dentist with integrity.
Lenora D.
Nice people Good attention The doctor very capable
Juan J.
Dr. Bae is always the best. The office staff always recognize me by name. I always feel welcome. Great experience.
Marissa S.
Service was timely, dentist explained each step of the process. Practically pain free filling.
Valerie C.
Great visit, even for a scraping. Ms. Barbara is wonderful, and I've found all the staff I've interacted with (over my 4 appts so far) to be very […]
Robin A.
One of the gentlest and most efficient dental experiences I've had.
Renee M.
Dr. Phillips and my favorites and I am most satisfied.
Jacob M.
Kind courteous and informative.
Joan W.
Everything went good. Whenever I leave without a "we need to do something" appointment, works for me.
Larry S.
I was a first time patient. I was taken back on time, and the staff we're polite and professional. I had no pain during the procedure and it was as […]
Jeff W.
Fast and a job well done.
Philip J.
Very professional and my service was quick and efficient. Thank you
Kendra B.
I have only had good experiences with Dental One since starting there as a patient in June 2014. Hygienist Ms. Barbara was great during my most […]
Robin A.
Saw Dr. Scurupa - excellent exp.
Kathleen K.
I had a very pleasing visit. The staff is super friendly and efficient. I will definitely be coming back!
Bria M.
Dr bae and Christie was excellent they explained everything to me the entire time.
Kiwana H.
Dr Athala is awesome & the Dental hygienist are warm and friendly. The check/ billing coordinator was also friendly and helpful
Jacqueline R.
Very minimal discomfort. Very considerate of my well being. Very pleasant!
Michele D.
The staff at Dental One Associates took good care of me. They tried their utmost to make me feel confortable while they were working on my needs. I […]
Kathleen D.
I was so relaxed, I went to sleep a few times. I love Dr. Winter! He's the best!! And this is, by far, the best dentist office I've ever been to. […]
Maria F.
Extraction went well and healing went well. 100% satisfied with procedure and the doctor and assistant.
George S.
My new hygienist was amazing (Michelle) and the staff was courteous and effective in addressing my insurance issues.
Wanda D.
Excellent place
Minnie M.
Awesome customer service!
Lisa K.
It was a nice experience. Everyone was very nice and polite. I really appreciate Dr. Longley, he explain things to you and make you feel comfortable.
Sharonda E.
Barbara is always excellent.
Ruth A.
Professional. Fast. Friendly. I am not a fan of the dentist but Dr. Winters and his associates made it a pleasant experience.
Kiara C.
Everyone is pleasant, they make sure you are taken care of, and the waiting time is short.
Florence S.
They were immensely helpful and friendly.
Mary J.
Excellent caring doctor and supporting staff.
Linda B.
AMAZING experience Dr. Longely was like a super hero and helped my son get his chipped tooth looking exactly like the old one with immediate […]
Gerson K.
I had a wonderful experience as always.
Edrena G.
Love Dr Athala & Ctystal-dental hygienist extraordinaire! They make an otherwise anxiety filled visit to the dentist mire relaxing.
Jacqueline R.
very professional direct with detail instructions I look forward to having my dental care at Cross Keys-Dental One Associates.
Ron G.
I am very pleased with the service and care I received.
Doug H.
Dental One personal have always made an effort to accommodate me.
John S.
All staff was very kind and professional.
Paul M.
Pleasant experience. The staff was very professional.
Jessica B.
I love Barbra she always does an excellent job with a great personality.
Nicole E.
Great service and great care by doctor Winter.
Michael T.
Things started out rocky, (mix up with my appt) but we worked through that and I have been very pleased with the services. Thanks for resolving the […]
Sharonda E.
Everybody at the office was nice.
Andrew R.
I love Dental One. I often have to get a lot of dental work done and I've been to several different dentists in the past few years. I plan to stick […]
Jayda C.
Dr. Phillips and Barbara have been terrific,
Jacob M.
as always wonderful. Thank you
Kristie G.
I appreciate everyone's affability.
Jason R.
This was my first time visiting this office, and I was referred by my step-daughter's mother. Despite a fairly short wait, I had a very good […]
Corice S.
The work got done efficiently. It's a good thing I'm rich. Lol!
Gerardine D.
Office Hours
Mon. – 8:00 AM - 5:00 PM
Tue. – 8:00 AM - 5:00 PM
Wed. – 8:00 AM - 5:00 PM
Thu. – 8:00 AM - 5:00 PM
Fri. – 8:00 AM - 3:00 PM
Sat. – Closed
Sun. – Closed
Phone: (443) 863-6394
Fax: (410) 433-4554
Healthcare Financing with
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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.

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For appointments, call us at: (443) 863-6394 or
Request an Appointment
For appointments, call: (443) 863-6394
Office Hours
  • Monday 8:00 AM - 5:00 PM
  • Tuesday 8:00 AM - 5:00 PM
  • Wednesday 8:00 AM - 5:00 PM
  • Thursday 8:00 AM - 5:00 PM
  • Friday 8:00 AM - 3:00 PM
  • Saturday Closed
  • Sunday Closed
Get in touch:
  • Phone: (443) 863-6394
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