Dental Associates of Northern Virginia in Fair Oaks
12011 Lee Jackson Memorial Hwy, Suite 105, Fairfax, VA 22033

Joan Howanitz, DDS, MS  Periodontist

Dr. Howanitz is a board-certified periodontist who has been helping smile since 2004. She wants every visit to be a good one and offers the latest advancements in patient care, treatment options, and dental technology.

Dr. Howanitz and her team provide a professional, caring environment for their patients. Each team member is highly-trained and knowledgeable and happy to assist in any way. As a periodontist, Dr. Howanitz focuses on individual dental implant placement, implant-supported dentures, implant-supported bridges, and a variety of treatments designed to manage periodontal disease. Periodontal disease is the leading cause of tooth loss in adults; proper diagnosis and treatment can save the teeth.

Dr. Howanitz completed her undergraduate degree at University of Southern California in 2001. She attended Columbia University School of Dental and Oral Surgery to receive her dental degree and her post-doctorate Master of Science in Periodontics degree in 2004. She served as an associate faculty member at the school until 2006. She has also served as a clinical instructor at the University of Southern California’s School of Dentistry from 2006 to 2010.

Dr. Howanitz is a Diplomate with the American Board of Periodontology and a member of the American Academy of Periodontology, American Dental Association, Maimonides Dental Society, and Greater Washington Academy of Women Dentists. When she’s not fixing smiles, Dr. Howanitz enjoys spending time with her husband, Dr. Khalid Choudhary, and their two children.

Read What Our Patients Say
Patient Reviews
Great service; great teeth!
James S.
Wonderful dentist who does very good work, and a caring staff who make the visits pleasant. I only wish I had discovered Dr. Greenspan earlier, he would have saved me a lot of grief.
Kelly H.
Service is prompt, courteous, efficient, and excellent work. I have been going to Dr Schecht for many many years, and would recommend him to anyone. Thanks!
Harry M.
Great personal care from front desk staff to the dentist and his chair side assistant. Also from Maria taking the time to say hello to me.
Ellen S.
Friendly front desk, great office manager and Dr Greenspan always communicates and puts you at ease
Neil C.
High quality care. Caring, efficient, and professional staff. I actually look forward to each visit.
Graciella E.
Dr. Rotter- kind and knowledgeable
Erika A.
Professional and friendly staff.
Herbert R.
Dr. Rotter is a consummate professional while putting his patients at ease. He has provided my husband and me excellent care, and provides explanations and suggestions for your dental care. Also, the […]
Linda S.
Dr. Greenspan makes having a cavity or a crown as pleasurable an experience as one could have. He explains the steps as he does everything, in a calm, gentle manner. And the results are first class!
Laurie P.
Thank you so much for the superb work on my brother, James’s, teeth. Your caring approach put him at ease and your expertise in repairing his teeth was amazing. Thank you so very much!
James P.
The dental hygentist that cleaned my teeth the past several times (Jacqualyn Harris) is extremely kind, gentle and polite; I’ve felt better than usual when I’ve left the office after my […]
Timothy D.
I enjoy Jackie my hygienist and Dr. Schecht. I have known them a long time now and they really make me feel appreciated. The rest of the staff I encountered was also polite.
Kelly T.
Service is very good at each visit!
Angela I.
Dr greenspan
Andrew W.
I have been a patient of Dr. Rotter’s for almost 40 years. The care and treatment my husband and I receive from him and his staff are always first rate.
Mary B.
So friendly and thorough
Leah P.
Everyone was courteous and knowledgeable
Josie B.
Always professional, good service.
Ann R.
Friendly front desk, excellent heigientist (Jackie) and friendly and great Dentist that is friendly and always makes me feel at ease. (Dr. Greenspan)
Jeffrey W.
Office Hours
Mon. – 8:00 AM - 6:00 PM
Tue. – 8:00 AM - 5:00 PM
Wed. – 8:00 AM - 4:00 PM
Thu. – 8:00 AM - 6:00 PM
Fri. – 7:00 AM - 2:00 PM
Phone: (703) 596-0875
Fax: (703) 273-8149
Healthcare Financing with
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.

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For appointments, call us at: (703) 596-0875 or
Request Appointment
For appointments, call: (703) 596-0875
Office Hours
  • Monday 8:00 AM - 6:00 PM
  • Tuesday 8:00 AM - 5:00 PM
  • Wednesday 8:00 AM - 4:00 PM
  • Thursday 8:00 AM - 6:00 PM
  • Friday 7:00 AM - 2:00 PM
Get in touch:
  • Phone: (703) 596-0875
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