Thursday, September 21, 2017

Call Now: 301-585-0400

About Our Doctors
     Kalambayi T. Kabasela, DDS, FICD

Dr. Kalambayi T. Kabasela has been teaching and practicing dentistry in the Washington DC area for over twenty years. He holds a DDS degree from Howard University, Washington DC and a Post Graduate certificate in Prosthodontics from the University of Maryland. He has studied Implantology and complete mouth reconstruction under some of the best practitioners and educators in the United States.

Currently he is a Fellow of the International College of Dentists, a Diplomate of the International Congress of Oral Implantologists, and a member of the American Dental Association, The American College of Prosthodontists, and the Academy of Osseointegration. When he's not in the office, he can be found lecturing both nationally and internationally on Oral Rehabilitation and Implantology.

    Donald R. Allen, DDS, MS

Dr. Donald R. Allen is a board certified Periodontist and has been a member of The Metropolitan Dental Specialty Group for approximately 4 years. Dr. Allen received his Bachelor of Arts Degree from Fisk University in Nashville, Tennessee. After matriculating through Fisk University, he enrolled in Meharry Medical College, School of Dentistry where he earned his Doctor of Dental Surgery Degree.

After earning his Doctor of Dental Surgery Degree, Dr. Allen completed his General Practice Residency at the Veterans Administration Hospital in St. Louis, Missouri. He then completed a one year internship in Oral Surgery at the Homer G. Phillips Hospital in St. Louis, Missouri.

It was during this time that Dr. Allen developed an interest in the field of Periodontology. He then travelled to Ann Arbor, Michigan where he earned a Master's of Science Degree in the specialty of Periodontics from the University of Michigan, Rackham School of Graduate Studies. Dr. Allen returned to St. Louis, Missouri where he engaged in the private practice of Periodontics for five years. He was later recruited by the United States Air force Dental Corp and served his country for three years.

Upon separation from the United States Air Force, Dr. Allen joined the Dental Faculty at Howard University College of Dentistry and practiced privately part time. Presently Dr. Allen is Chairman of the Department of Periodontics at Howard University College of Dentistry, actively attends and participates in his church and continues to practice with Metropolitan Dental Specialty Group. 

      Mame Adubea Asamoah-Odei, DDS
General Dentist

Originally from Ghana, Dr Asamoah-Odei attended St. Mary's University in NS, Canada where she received her Bachelor of Science degree. She then attended Howard University in Washington, DC where she received her Doctor of Dental Surgery degree. After dental school, she did a one year General Dentistry Residency program at Montefiore Medical Center in Bronx, NY. Dr. Asamoah-Odei has been an associate at Metropolitan Dental Specialty Group since August 2011. 
Marianne S. Siewe DDS, MS


Dr Siewe is a Certified Orthodontist who graduated from Howard University. She now serves as a full time Assistant Professor at Howard University College of Dentistry, Department of Orthodontics. She has been a part time private practitioner in Maryland and DC for about 5 years. Prior to that she participated in multiple research projects at the University of Maryland (Prostate cancer research) and Howard University (Antigenicity of Trypanosomes in rats and mice).


Dr Siewe is a member of the American Association of Orthodontists, American Dental Association, Omicron Kappa Upsilon Dental Society as well as the Maryland State Dental Society.


Dr Siewe received her Associate Degree in Pre-Medicine from Schiller International University in London (England) in 1995, and her Bachelor Degree in Biology, Minor Chemistry Magna cum laude from Howard University in 1998. In 2000, she received her Master of Science degree in Biology subfield Parasitology also from Howard University. Then in 2004 her Doctorate of Dental Surgery Degree with honors and ranked in the top 5 of her class, her Certificate in Advanced Education in General Dentistry in 2005 and her Certificate of Orthodontics in 2007 all from Howard University College of Dentistry.


Dr. Siewe likes music, reading, travelling, movies, dancing and taking care of her two children Brian and Brianna.

Kehinde Kemi Osunsan D.D.S., M.S.

General Dentist

Dr. Osunsan is excited to be part of Metropolitan Dental Specialty Group, where dedication to quality care and treatment is greatly emphasized. Dr. Osunsan earned her Dental degree from Howard University College of Dentistry and completed her Advanced Education in General Dentistry Residency at East Carolina University School of Dental Medicine. Dr. Osunsan is a member of the American Dental Association and the Academy of General Dentistry.

Dr. Osunsan enjoys taking the time to ensure every patient feels comfortable while in the dental chair. Educating her patients on treatment options is very important to her and thus Dr. Osunsan ensures she is up to date with new advances in dentistry through upcoming continuing education courses on implants and cosmetic restorations.

In addition to dentistry, Dr. Osunsan enjoys traveling, playing tennis, running, and live music.

Metropolitan Dental Specialty Group, located in Silver Spring, MD, is a Dental Practice who services patients from North Bethesda, MD, Hyattsville, MD, and White Oak, MD. We are looking forward to welcoming you to our office and encourage you to schedule your appointment today!


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