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832 Quince Orchard Blvd.
Gaithersburg, MD 20878
(301) 948-0058

10339 Kensington Pkwy.
Kensington, MD 20895
(301) 949-2280

220 Main St.
Gaithersburg, MD 20878
(301) 519-3232


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Maryland Dentist

Word-of-mouth referrals from our patients.

Dr. Kelly and his staff are committed to your total satisfaction. Perhaps this is why most of our business comes from satisfied patients telling a friend or family member about our offices. We make it easy with!

  • Three convenient office locations in Montgomery County MD
  • Saturday & evening appointments to fit your busy lifestyle
  • Emergency care 365 days a year
  • Same-day repairs for dentures
  • TVs in the reception area & operatories
  • Acceptance of PPO insurance plans, with the paperwork filed for you
  • Major credit cards are always welcome
  • Flexible financing options

Experience high-quality dental care, focused on you. Choose the services of Dr. Robert J. Kelly DDS & Associates. Call for your appointment today at any of our three convenient Montgomery County offices.

Dr. Lev Tomashevsky

Lev Tomashevsky, DDS

Dr. Lev Tomashevsky graduated from Buffalo University School of Dental Medicine. Dr. Tomashevsky completed a 1 year residency. He also completed a 2 year implant and Advanced prosthodontics Fellowship at North Shore University Hospital in Manhasset, NY. Dr. Tomashevsky is a member of American Dental Association, Maryland State Dental Association, and Academy of Osseointegration. Dr. Tomashevsky is fluent in Russian.


Meet Our Doctors


Dr Robert Kelly

Dr. Robert J. Kelly – General Dentist; is a graduate of Georgetown University School of Dentistry. Dr. Kelly has over 42 years of experience in dentistry. Member of: Academy of General Dentistry, American Academy of Cosmetic Dentistry, American Dental Association, Maryland State Dental Association, Southern Maryland Dental Association.

Dr. Philip Jay Magpantay

Dr. Philip Jay Magpantay (Dr. PJ) – General Dentist; has a M.A. in Public Health from the George Washington University and received his dental degree from the University of Maryland, Baltimore College of Dental surgery. He is a certified Invisalign® provider with over 2 years of experience.

Ronald Holderman, DDS

Dr. Ronald Holderman – General Dentist; graduated from Ohio State University, College of Dentistry in 1978 with a M.A. in Human relations and Management. He then pursued a M.A. in Education and Human Development. From there he graduated with an Ed.D. at George Washington University, Washington DC. Certificate: Naval Postgraduate Dental School, Bethesda, Maryland.

Dr Kimberly Purring picture

Dr. Kimberly Purring – General Dentist; graduated from The University of Maryland, Baltimore College of Dental surgery in 1998 with academic honors. She graduated from the prestigious Pacific Esthetic Continuum led by world renowned cosmetic dentist Dr. David Hornbrook. Dr. Purring is passionate about creating beautiful smiles and changing her patients’ lives one smile at a time.

Dr. Kenneth Lefkowitz picture

Dr. Kenneth Lefkowitz- General Dentist; is a native of Brooklyn, New York. Dr. Lefkowitz is a graduate of SUNY Buffalo School of Dental Medicine. Dr. Lefkowitz owned a general dental practice in Bloomfield, Connecticut for 34 years. He moved to Maryland in 2011 to be closer to family. When not practicing dentistry, he can be found on the tennis courts in the Kentlands. He enjoys working for the practice three days a week.

Dr Marie Kao picture

Dr. Marie Kao- General Dentist; as a former Californian, graduated from University of California, San Francisco in 1998. She continued her training in General Practice Residency at the Sepulveda/UCLA Veterans Administration Hospital in Northridge, CA, in 1999. Her interests are in providing care to young patients and creating a positive experience in dentistry for all. Dr. Kao believes that good dental health starts at a young age. Dr. Kao is fluent in Mandarin Chinese.

 Barry R. Maharaj, DDS

Dr. Barry Maharaj – Oral Surgeon; attended Howard University College of Dentistry in Washington D.C. for both his undergraduate Dental and graduate Oral and Maxillofacial Specialty training. He practices a wide scope of Oral & Maxillofacial procedures including wisdom teeth removal, dental implants, oral pathology, TMJ treatment and facial trauma.


Dr. Dipa Patel – Oral Surgeon; received her undergraduate training at the University of Virginia, Also receiving her BA in Religious Studies. After this, Dr. Patel completed dental school at University of Maryland; then went on to finish her Oral and Maxillofacial surgery residency at Long Island Jewish Hospital in New York.


Dr. Marc Stanard – Periodontist; earned his Doctor of Dental Surgery degree from Georgetown University School of Dentistry in 1989. He then pursued a two year certificate in advanced post graduate dentistry at Emory University. He went on to attend Veterans Affairs Medical Center affiliated with Marquette University School of Dentistry in Milwaukee to complete a post graduate residency in Periodontics in 1993.

Dr Nikkhah

Dr. Samia Nikkhah – General Dentist; received her degree in doctor of dental surgery from New York University College of Dentistry in May of 2012. She graduated from Howard University with a bachelor’s of biology in May of 2008. She takes pride in treating her patients with respect and understanding. She greatly values her relationships with patients and earning their trust. She hopes to make a meaningful connection with every patient and to be his or her favorite and last dental provider. Her hobbies include hiking, cooking and yoga. She is fluent in Farsi.

Dr Ghulam Murtaza

Dr. Ghulam Murtaza – Endodontist; received his dental degree with honors from The University of Pennsylvania School of Dental Medicine. He then completed his specialty residency training in endodontics at The University of Maryland Dental School in 2006. Dr. Murtaza has been a practicing endodontist for over 10 years and is licensed in both Maryland and Washington, D.C. He continues to pursue the latest advances in endodontics by actively participating in continuing education courses. Dr. Murtaza is an avid soccer fan and enjoys spending time outdoors with his family.

Meet the Staff

Robert J Kelly & Associates Company Picture 2013

“My associates and I are sincerely committed to providing you with the most advanced dental techniques and pain-free treatments in a friendly and comfortable environment.”

Robert J Kelly DDS & Associates Doctors picture 2013 Robert J Kelly DDS & Associates hygienists picture 2013
Robert J Kelly DDS & Associates Doctors Robert J Kelly DDS & Associates Hygienists
Robert J Kelly DDS & Associates Assistants picture 2013 Robert J Kelly DDS & Associates Administration picture 2013
Robert J Kelly DDS & Associates Assistants Robert J Kelly DDS & Associates Administration
Robert J Kelly DDS & Associates Receptionists Picture 2013
Robert J Kelly DDS & Associates Receptionists



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