Simon Feng, MD

A family physician and addiction medicine specialist in Indiana.

About

Simon Feng is a family physician and addiction medicine specialist in Indiana, where he serves as medical director of two opioid treatment programs and runs an independent clinic managing chronic pain patients on opioids as well as outpatient addiction. He is affiliated with Valle Vista Health Systems.

He graduated from medical school in Vancouver, Canada, and practiced family medicine for three decades. His career took him from a rural mining town in the Canadian Rockies to urban Toronto and suburban Indiana, and his clinical experience ranges from delivering babies to nursing homes, urban ERs, and office-based practice.

When pharmaceutical companies began aggressively promoting opioids in the 1990s, he became concerned about the consequences and developed protocols to monitor opioid use and misuse. Colleagues began referring their opioid patients to him, which led to his expertise in managing opioids. He subsequently pursued training in addiction medicine and is certified by the International Society of Addiction Medicine.

He is the author of Abstinence Kills, available on Amazon, and shares his work with more than 70,000 followers on TikTok, spanning more than ten countries across four continents. He can also be found on LinkedIn.

Latest articles

Conditions

Why opioids for chronic pain must stay on the table

Simon Feng, MD

September 4, 2026Sep 4, 2026

The American Society of Interventional Pain Physicians estimates the United States has fewer than 7,000 practicing interventional pain physicians. Meanwhile, approximately 60 million Americans live with chronic pain, including roughly 21 million with high-impact chronic pain, pain that substantially limits a person’s ability to work, care for themselves, or participate in social activities. These numbers translate to roughly 3,000 patients with high-impact chronic pain per interventional physician. This is an …

Conditions

Why doctors won’t prescribe opioids, and who profits

Simon Feng, MD

August 19, 2026Aug 19, 20263

Opioids have acquired a terrible reputation as dangerous drugs, thanks to not one, but two opioid epidemics. America's first opioid epidemic began in the 19th century following the purification of morphine in 1804. Widespread military use during the Civil War,…

Opioids have acquired a terrible reputation as dangerous drugs, thanks to not one, but two opioid epidemics.

America’s first opioid epidemic began in the 19th century following the purification of morphine in 1804. Widespread military use during the Civil War, followed by aggressive postwar civilian marketing, contributed to widespread opioid use. Opioids were available not only from doctors but also as patent medicines, used for everything from menstrual cramps to insomnia, …