For nearly two decades, Dr. Jorge Zamora-Quezada built a reputation as one of the most prominent rheumatologists in South Texas. He operated multiple clinics across cities like McAllen, Brownsville, Mission, and San Antonio, living a lavish lifestyle that included a Maserati and a private jet, both marked with his initials. To the outside world, he appeared successful, influential, and highly trusted in his field.

But behind that image, prosecutors say he was systematically misdiagnosing patients with rheumatoid arthritis at alarming rates. Out of nearly 100,000 Medicare patients, about 72.9% were diagnosed with RA—far higher than the average among other specialists. Most of these patients did not actually have the disease, yet they were placed on aggressive treatment plans meant for severe chronic illness.

Patients endured years of unnecessary and harmful procedures, including chemotherapy drugs, infusions, scans, and other invasive treatments. Many later reported devastating side effects such as strokes, liver damage, hair loss, and jawbone necrosis. Some described their lives as being consumed by treatment for a condition they never truly had, with lasting physical and emotional consequences.

Federal investigators estimated the scheme led to more than $300 million in fraudulent claims, with over $100 million paid out. In May 2025, a federal judge sentenced Zamora-Quezada to 10 years in prison, and he was forced to forfeit luxury assets, including properties, cash, and his private jet. Officials called the case one of the most significant examples of patient harm tied to medical fraud in recent years.