Major Opioid Convictions

The District Attorney’s Office aggressively prosecutes both manufacturers and sellers of illegal narcotics and those who unlawfully prescribe controlled substances. Significant prosecutions include:

Dr. Hsiu Ying “Lisa” Tseng, who ran a storefront medical office in Rowland Heights, was convicted in 2015 of three felony counts of second-degree murder in the 2009 overdose deaths of three young men, ages 21, 24 and 28. She was sentenced to 30 years to life in state prison.
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Dr. Gerard Goryl, who ran a diet clinic in Redondo Beach, pleaded no contest to 38 felony counts in connection with selling hydrocodone and Xanax to undercover officers without any physical examination or medical need. He was sentenced in 2017 to seven years in custody.
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Dr. Yahya Hedvat, who sold prescriptions to undercover officers from his medical clinic in Encino, was convicted of unlawfully prescribing controlled substances in 2014 and sentenced to two years in county jail.
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Dr. Richard Kim, a general practitioner in Rancho Palos Verdes, was found guilty of illegally prescribing controlled substances without a legitimate medical need to undercover officers. He was sentenced in 2016 to three years in county jail and two years of mandatory supervision.
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