Roslyn NY Doctor Pleads Guilty

What Happened

Tameshwar Ammar, a former medical doctor in Roslyn, New York, pleaded guilty in federal court in Central Islip on July 27, 2020. The plea was made by teleconference. He pleaded guilty to conspiring to illegally distribute oxycodone. The notice came from the U.S. Attorney's Office for the Eastern District of New York. The source notice did not state a sentence or give further details of the conduct.

“pleaded guilty via teleconference to conspiring to illegally distribute oxycodone”
HHS-OIG enforcement action page, Jul 27, 2020

Related Guidance

15 Red Flags of Drug Diversion — Behavioral and transactional indicators of diversion.
Investigation Playbook — How to investigate suspected diversion inside an organization.

Sources

HHS-OIG enforcement action page, Jul 27, 2020

Case at a Glance

Setting: Medical practice
Drug: Oxycodone
Status: Pleaded guilty July 27, 2020 to conspiring to illegally distribute oxycodone

Source: HHS Office of Inspector General

What this case shows

Where this record connects to the site's working material. Links are chosen from the case's setting, drug and method fields.

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Last reviewed: September 2026 · Educational content, not legal advice.

About the author

DivertGuard is built and maintained by Alex Rodriguez, MHIIM, CPhT (also known as Jesus Rodriguez) — a drug diversion prevention program manager with more than a decade in pharmacy practice, including direct responsibility for a health-system controlled substance diversion prevention program.

Conference presentations

2025 — The Rounding Revolution: A High-Tech Approach to Diversion Prevention (with Emily Spiceland, PharmD)
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Faculty, ASHP Drug Diversion Certificate
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Credentials

Doctorate candidate — Doctor of Health Informatics (DHI), Rutgers University, School of Health Professions; research on health data analytics and the prediction of cognitive decline
MHIIM — master's in health informatics, University of Tennessee Health Science Center (2019–2021)
CPhT — Certified Pharmacy Technician, with 10+ years of pharmacy practice across retail, hospice, compounding, home-health, and hospital settings

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Registry Insights: Sentences, Fines, States and Outcomes

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Roslyn NY Doctor Pleads Guilty in Oxycodone Conspiracy