
PreviewGoing Undercover At Dr. Lisa Tseng's Clinc
To gather more information about Dr. Hsiu-Ying “Lisa” Tseng's medical clinic in Southern California, authorities sent undercover investigators to her office with the goal of obtaining prescriptions for controlled substances. In various meetings, Dr. Tseng failed to conduct a thorough exam or a full review of the patients’ documented medical history.
Season 2 Episode 5 - Videos

Preview
Why Was Dr. Lisa Tseng Prescribing Opioids?

Preview
Going Undercover At Dr. Lisa Tseng's Clinc

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Who Was Matthew Stavron?

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Investigating Southern California's Prescription Drug Epidemic

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Retired DEA Agent Discusses Effects Of OxyContin

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Undercover Investigator Recounts Dr. Lisa Tseng Case