QODC
Doctors














DR. Rouhanian
General Dentist
Dr. M. Mehran Rouhanian received his Doctorate in Dental Surgery in 2007 from the Baltimore College of Dental Surgery, University of Maryland. He completed a one-year fellowship in geriatric dentistry at the University of Maryland in 2008. Upon graduating, Dr. Rouhanian was fortunate enough to work with some great people who cared for each patient’s health and well being and not the bottom line for the practice .He is a member of the American Dental Association and Academy of General Dentistry and participates in continuing education courses to stay up to speed with advancements in the dental field. Dr. Rouhanian is also a fellow of the International Congress of Oral Implantologists (ICOI). In 2011 he opened his own practice, Quince Orchard Dental Care, with a mission to make a difference.
Dr. Rouhanian runs his practice on the principle that treating patients the right way is just as important as the dental care he provides. He developed this belief, and way of running his practice, from being fortunate enough to work with other great and respected dentists in the community like Dr. Morganstein and Dr. Plesset to name a few. People often remember the quality of the experience with their dentist. As such, Dr. Rouhanian places emphasis on how his patients are treated from the waiting room, through the entire visit.
Since then, Quince Orchard Dental Team has grown into an expert and caring group of dentists and team members. They are a family on a mission of change. Dr. Rouhanian has worked hard over the years to put together professionals who are genuinely good people, professionals who focus on precedence over people, professionals who will treat patients well no matter their income level or type of insurance.
Quince Orchard Dental Care is a full service dental practice, combining general dentistry, dental implantology, pediatric, cosmetic, orthodontic and periodontic dentistry under one roof. Their practice is a complete health practice, which means that their focus extends beyond simply providing a dental service. They are interested in the overall health of patients, and believe that certain oral indicators can predict certain systemic diseases. They take the time to educate patients about how and why they should do certain things in a simple and friendly manner.
Dr. Rouhanian’s hope is to be able to create such strong relationships with his patients that they will bring their children and grandchildren in to be cared for by their great group of doctors. His dream is that in 30 years when someone mentions Quince Orchard Dental Care, people will automatically think about a high level of quality and consistently thoughtful care. Dr. Rouhanian also believes a big part of his purpose is to improve the overall well-being of his community. He is involved in a number of charitable projects and plans to extend his reach in the coming months. Dr. Rouhanian is a member of the American Dental Association and Academy of General Dentistry and participates in continuing education courses. He is also a fellow of the International Congress of Oral Implantologists (ICOI). When not working, Dr. Rouhanian enjoys spending time with his family. He and his wife, Dr. Lewis, have two vivacious little girls, Ava and Ariana.
Come experience the difference one man’s vision has made at Quince Orchard Dental Care!

Dr. Ben-Ezra
General Dentist
Quince Orchard Dental Care has added a new member to their team, and she has done nothing but add to the excellence that our practice already is. This charismatic and detail-oriented dentist is none other than Dr. Samantha Ben-Ezra. Samantha contributes her compassionate touch when dealing with each patient. If you haven’t had the pleasure of meeting her yet, take a look at this article and get to know her.
As a young girl in middle school, Dr. Ben-Ezra was determined to avoid working a desk job knowing it would limit her opportunities to utilize her hands and artistic skills. She attributes her career choice to her father, who is a chiropractor and manages his own chiropractic practice. She reminisced about seeing her dad’s patients gravitate to his warmth and kindness, while feeling comfortable enough to execute chiropractic procedures. This was something Dr. Ben-Ezra always aspired to achieve with her patients when she became a dentist. She is always eager to help people, regardless of their age and couldn’t pass up the opportunity to interact with people every day.
Dr. Ben-Ezra’s dental journey began at Penn State University where she gained her Bachelor of Science in Chemistry. She jumped directly into dental school at Rutgers School of Dental Medicine in Newark, New Jersey. She continued diligently into a one-year residency at Hackensack Meridian Jersey Shore University Medical Center - Neptune, New Jersey. During her academic exploits, she participated in extracurricular programs and gained leadership experience, certifications and awards.
Moving from New Jersey to Maryland and being away from family has many downsides but locating new restaurants and exploring new sites keeps her occupied. She enjoys a good sweat during her workout sessions when she is not rendering her services to her patients. You can also find Dr. Ben-Ezra hunting for new recipes to introduce to her family’s taste buds while entertaining them for an evening of fun. Dr. Ben-Ezra even created a recipe catalog of all the scrumptious meals she has ever made. As far as values and principles go, Dr. Ben-Ezra is compassionate and is always thrilled to meet new people with her outgoing personality.
Dr. Ben-Ezra knew she made the right choice by choosing Quince Orchard Dental Care. It was refreshing to know that her values of being patient-centric aligned perfectly with ours. We are excited to have her as part of our dental team and look forward to all the wonderful things ahead. The next time you visit our practice, be sure to say hello to Dr. Ben-Ezra. To book an appointment with a practice that makes you feel at home, contact us here.

Dr. Brian Peyser
General Dentist
Dr. Brian Peyser is a life-long Washingtonian and a graduate of the University of Maryland School of Dentistry -the world’s first dental school. Dr. Brian believes informed patients are better able to make informed decisions about health and their well being therefore, he seeks to educate his patients about dental problems and treatments. He consistently attends continuing education courses to stay current in dentistry. Dr. Brian completed his dental implant course through Hiossen. He currently resides in Gaithersburg, MD with his wife Debra, their two children, and a 90 pound golden retriever named Sonny. When Dr. Brian is not practicing dentistry, he is an avid mountain biker and outdoor enthusiast.

Dr. Darvish
General Dentist
Dr. Darvish received her Doctor of Medicine in Dentistry degree (DMD) from Rutgers School of Dental Medicine. Her main passion is to help patients with a comfortable and relaxing dental experience, and give them a smile they deserve, a smile that is both beautiful and functional.
She is providing a wide range of dental treatment including different aspects of restorative dentistry, endodontic and extraction. Dr. Darvish is specifically interested in cosmetic dentistry and continuously improving her skills in this field. She sees patients with different ages from pediatric to geriatric and always tries to make sure that patients are happy before they leave the dental chair.
She enjoys cooking and swimming and spending her free time exploring new places with family and friends.

Dr. Lauren Lewis
Board Certified Pediatric Dentist
Dr. Lauren Lewis graduated in 2007 from the University of Maryland’s Baltimore College of Dental Surgery. She then gained some invaluable experience helping children and adults with special needs while on staff at Kernan Hospital Dental Clinic in Baltimore. In 2008, she began her residency in Pediatric Dentistry at the University of Pittsburgh’s School of Dental Medicine and received her Certificate in Pediatric Dentistry in 2010. A year later her board certification from the American Board of Pediatric Dentistry followed and fast forward to today, Dr. Lewis is also now a member of the American Academy of Pediatric Dentistry, the Maryland Academy of Pediatric Dentistry and also the Special Care Dentistry Association.
In 2011, Dr. Lauren Lewis and her husband, Dr. Mehran Rouhanian, started the Quince Orchard Dental Care practice with a mission to make a difference. Who really is Dr. Lauren Lewis? What drives her to provide exceptional care for her little patients, foster a family environment and manage the complexities of catering to her little patients, especially those with special needs? When asked about this, Dr. Lewis spoke empathically about being of service to others as her main driving force. Her inspiration first stemmed from her childhood observations of her mom, Diane Lewis, who worked with special needs patients at a pediatric dental office. "After that, I realized how much of an impact I could have on a family who has children with special needs by just being kind and patient and providing the care for them that everyone deserves." It was then she had decided she only wanted to be a Pediatric Dentist and there was no doubt in her mind about that!
Dr. Lewis is always looking to improve on how pediatric dentistry is practiced. She implemented the 'open bay format' as part of her philosophy which is aimed at specifically improving the experience of patients by having multiple patients in the same room at the same time. She has found that her young patients tend to feel less anxious when they can see others just like them being treated. One of the most heartwarming experiences for her was when a patient who does not have special needs was sitting in a chair in the open bay next to a patient who has Autism. When the young girl saw that the boy with Autism was having a difficult time cooperating for his appointment because of his anxiety, she got up and went over to the boy, held his hand and calmed him down. This was a wonderful experience for Dr. Lewis, as well as for the parents of both of these patients. Along with the heartwarming occurrences, Dr. Lewis really feels a sense of fulfillment and reward in getting to know all of her patients personalities and seeing them grow up.
Her business approach is one that realizes that collaboration is essential to success. She strives to position her practice at Quince Orchard Dental Care as a part of the puzzle and not as a competitor with dentists in the area. She recognizes that many dental services are offered under one roof here at Quince Orchard Dental Care, she ensures that ample consideration is given to those that refer patients to her and is always looking to reciprocate.
On a personal note, Dr. Lewis enjoys spending time with her family. Her two daughters, Ava and Ariana, are quite involved in extracurricular activities including soccer, tennis, ice skating and ballet and so being a part of those activities and watching them grow is very important to her. When she's not off being a soccer mom, she gets bendy in her yoga practice and also enjoys a good game of tennis. In fact, it's a dream of hers to one day go to all four grand slam tennis tournaments. So far she has only been to the US Open and that was quite an experience!
Everyone has someone in their life whom they believe have helped shaped them into the person they are today. For Dr. Lewis, it's not just one person. Her success, not only in her practice but her life, has come from the support of her family. Her mom, her husband, and the late Dr. Morgenstein, her mentor, who she added “Quince Orchard Dental Care was modeled after”, all played significant roles in her life. Dr. Lewis believes that loyalty is one of the core values every person should have. “Staying loyal and true to people, the practice and what you stand for” is what she aims to live by every day. Those are just some of the reasons why our employees and patients adore her, as she does them! Now that you're acquainted with Dr. Lauren Lewis, be sure to bring your little loved ones by to meet her and say hi the next time you're visiting us at Quince Orchard Dental Care.

Dr. Sheyda Maghsoudi
Board Certified Pediatric Dentist
Making a difference in the lives of her young patients and contributing positively to their overall health is one of the driving forces behind Pediatric Dentist- Dr. Sheyda Maghsoudi. Affectionately known as Dr. Sheyda by her patients, she aspires to continue to educate and encourage her patients to achieve optimal oral health. She is passionate about her patients, a very likable colleague and someone who always seeks to give back to the community.
Dr. Sheyda grew up in Virginia and attended James Madison University where she received her Bachelor of Science degree, Magna Cum Laude. She then attended Virginia Commonwealth University, School of Dentistry where she obtained her Doctor of Dental Surgery degree. She graduated top of her dental school class and was awarded membership into Omicron Kappa Upsilon National Dental Honor Society.
Dr. Sheyda knew she wanted to work with children from early on, so next she pursued post-doctorate education in pediatric dentistry. She completed two additional years of specialty training at Cincinnati Children’s Hospital, one of the top 3 ranked children’s hospitals in the country, where she earned a Specialty Certificate in Pediatric Dentistry. Dr. Sheyda is a Board Certified Pediatric Dentist and a Diplomate of the American Board of Pediatric Dentistry.
Residency at Cincinnati Children’s Hospital provided her with extensive training in treating the dental needs of infants, children, adolescents and patients with special developmental or medical needs. She also gained expertise in sedation dentistry, advanced behavioral management techniques and dental trauma management. Dr. Sheyda currently has hospital privileges at Shady Grove Medical Center where she sees patients that need dental work under general anesthesia.
When Dr. Sheyda is not spending time with family and friends, she is playing with her dog, Chloe. She loves the outdoors and enjoys taking walks, watching TV shows, giving back to the community and generally having a good time. She is also an avid sports fan and enjoys cheering for her favorite teams, particularly FC Barcelona’s soccer team and Cincinnati Bengals football team!
With all of her efforts aimed at providing the best possible care, Dr. Sheyda is really looking forward to having an impact on the smiles of her young patients. She views dentistry as an exciting opportunity for lifelong learning and fulfillment. She continues to work hard and strive for excellence. She believes in thorough preparation and delivering treatment that she is proud of in a professional, caring and open manner. She is committed to providing her patients and their parents a strong sense of comfort, confidence and satisfaction with their dental experience. Dr. Sheyda sees many opportunities to help make a difference at Quince Orchard Dental Care.
Certifications and Memberships:
- American Board of Pediatric Dentistry
- American Academy of Pediatric Dentistry
- American Association of Women Dentists
- American Dental Association
- Maryland Academy of Pediatric Dentistry
- Northeastern Society of Pediatric Dentistry
- Omicron Kappa Upsilon Dental Honor Society

Dr. Keturah Lowe
Pediatric Dentist
Dr. Lowe studied dentistry at the University at Buffalo School of Dental Medicine. She completed her first General Practice Residency at Rochester General Hospital. At the University of Washington, she earned a second General Practice Residency certification with an emphasis on adults with special needs and an interdisciplinary fellowship with Leadership in Education and Related Neurodevelopmental Disabilities (LEND). After practicing as a general dentist, Dr. Lowe returned to Buffalo to train in pediatric dentistry at University at Buffalo, John Oishei's Children's Hospital.

Dr. Sara Farajian
Board Certified Pediatric Dentist
Bio coming soon!

Dr. Christian Mangin
Endodontist
Dr. Christian Mangin received his Dental Degree from the University of Pittsburgh in 1998 and his Endodontic Certification from Temple University in 2000. He also holds a Bachelor of Arts Degree from Brown University where he played soccer. Dr. Mangin is a member of the American Dental Association, American Association of Endodontists, Pennsylvania Dental Association and served the Beaver Valley Dental Society as the former treasurer. Born and raised in Moon Township, Dr. Mangin graduated from Moon High School in 1990. He now resides in Sewickley with his wife Nicole and children Madison, Mia, Jack and A.J. He is an avid runner and loves to golf!

Dr. Shirwa Hassan
Endodontist
Dr. Hassan received his DMD and specialty training in endodontics at the University of Pittsburgh. Prior to specializing, Dr. Hassan practiced general dentistry for 6 years. He is known for his caring demeanor and overall pleasant personality. A family man above all else, he is a proud father of 3 young children and married to his better half. With a mantra of treating everyone with the same dignity, warmth and regard as one would their closest family, Dr. Hassan extends his clinical expertise with open and inviting hands!

Dr. Farzin
Periodontist
Sina Peter Farzin has been involved in dentistry since 1994, as a clinician, researcher, and educator, and has developed a variety of skills and gained invaluable experience in that time. He practices in Washington DC, Maryland and New York where he received his dental degree and a specialty in periodontics at New York University. The patients that he treats have special therapeutic needs, either because of regimen complexity, difficulty in reaching the goal clinical outcome, or lack of adherence to the treatment due to the fear of dentistry.
His interpersonal skills and commitment to excellence have awarded him the highest level of care which has been recognized by friends, patients and colleagues alike. In addition to the care of individual patients, his experience has been requested to aid the production of guidelines that influence patients in a global setting. He has participated in a number of national and international initiatives pertaining to periodontal plastic surgery. His most recent endeavor, in combination with Osteohealth Co., he conducted a technique sensitive bone grafting surgery on Video with the use of Bio-Oss and Bio-Gide (Bone regenerating materials). The Video has been so successful that it is currently being used by the entire sales force for the purpose of educating fellow clinicians. He is also a member of the Academy of Osteointegration, the American Academy of Periodontology and the American Society of Dental Anesthesiology.

Dr. Page Collymore
Orthodontics
Dr. Page Collymore was born in Delaware and raised around the world courtesy of the United States Air Force. As a military child, she grew up in the Philippines, North Carolina, Japan, and Illinois. From her travels, she was honored with the opportunity to meet people from a vast array of cultures and experience the beauty of life around the world. Through her love of cultures and people, she knew her life's ambition would be to service those around her. Dentistry provided Dr. Collymore the opportunity to share her love of art, science, and people all in one amazing profession!
Dr. Collymore holds a Bachelor of Science in Investigative Medicine with a minor in Biology and interprofessional Health Care from St. Louis University in Missouri. Upon completion of undergraduate school, she attended Southern Illinois University School of Dental Medicine in Alton, Illinois under a highly competitive U.S. Navy Scholarship. She graduated in 2014, and honorably served a total of 10 years in the United States Navy, achieving the rank of Lieutenant Commander.
After her military career, Dr. Collymore was granted admission to the highly sought after Orthodontic residency at Medstar Washington Hospital Center. Participating in a hospital residency, Dr. Collymore was exposed to complex craniofacial cases and her favorite, working with special needs patients. As a Mother, Dr. Collymore understands the value of fostering a trusting relationship with you and your child. Her training also includes Invisalign and Adult Orthodontics. As a self-proclaimed lifelong learner, Dr. Collymore continues to constantly challenge herself and learn new groundbreaking techniques and technology.
She resides in the DMV area with her husband, Michael, and their children, and an adorable toy poodle named Ginger. In her free time, she enjoys cooking, exploring the city, and watching a good movie! An interesting fact, she has been teaching herself Spanish for the last year! If you speak Spanish, make sure to chat with her to help hone her skills!

Mohammed Abdulateef , DMD
Board Certified Orthodontist
Dr. Mohammed Abdulateef became an orthodontist to create beautiful smiles and boost peoples’ confidence. His favorite part about working with children is watching them grow and develop their personalities. In his free time, Dr. Abdulateef enjoys spending time with friends and family, working out, sports, comedy shows, and concerts. His favorite food is barbecue, and his favorite place to vacation is anywhere with nature and a beach!
845 Quince Orchard Blvd.
Suite H
Gaithersburg, MD 20878