Fairfax County Police Department News

Fair Oaks Police District – Detectives with our Major Crimes Bureau have charged a 25-year-old Gainesville man for sexually assaulting a patient at Fair Oaks Hospital. Detectives were notified Apr. 18 by hospital staff after a patient disclosed he received a physical examination from the man who provided him with his gown. At the time, the victim believed the man was authorized to perform the physical examination. The victim told a physician assistant of the examination and staff immediately contacted police.

Detectives determined Yoshimi Koga Contreras told the victim to undress then performed an examination of the victim’s body to include his genitals. Koga Contreras has no authorization or license to practice or provide medical treatment. On May 4, Koga Contreras was charged with aggravated sexual battery. Today, he was arrested in the Town of Vienna and taken to the Fairfax County Adult Detention Center where he is being held without bond.

Victim specialists from our Major Crimes Bureau’s Victim Services Division have been assigned to ensure that the victim is receiving appropriate resources and assistance.

Koga Contreras worked for Inova Fair Oaks Hospital since 2016. Detectives are asking anyone with information about this case or believe Koga Contreras had inappropriate contact with them to please call our Major Crimes Bureau at 703-246-7800, option 3. Tips can also be submitted anonymously through Crime Solvers by phone – 1-866-411-TIPS (866-411-8477), by text – Type “FCCS” plus tip to 847411, and by web – Click HERE. Download our Mobile tip411 App “Fairfax Co Crime Solvers”. Anonymous tipsters are eligible for cash rewards of $100 to $1,000 dollars if their information leads to an arrest.

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