US v. Yoon

Circuit 1Feb 20, 2026

Split Score

SplitScore: 66/100

Case Summary

Disposition

Affirmed

The First Circuit affirmed Chang Goo Yoon’s convictions for health-care fraud and his 27-month sentence. Rejecting Yoon’s evidentiary and guideline challenges, the court upheld the district court’s admission of prior-investigation evidence and endorsed the use of the full amount billed as intended loss, while also ruling that a physical therapist occupies a position of trust toward private insurers for purposes of the U.S.S.G. § 3B1.3 enhancement.

View Full Opinion Document (PDF)

Circuit Split Identified

Legal Issue

Whether a health-care professional submitting claims to a private health-insurance company occupies a "position of trust" under U.S.S.G. § 3B1.3, such that the two-level abuse-of-trust enhancement may be applied.

Circuit Positions

Circuit 0Circuit 1(this circuit)Circuit 2Circuit 3Circuit 4Circuit 5Circuit 6Circuit 7Circuit 9

Health-care professionals do occupy a position of trust vis-à-vis private insurers; § 3B1.3 enhancement applies.

Circuit 11

A fiduciary relationship is required; providers are not in a position of trust toward insurers, so § 3B1.3 does not apply.

Conflict Summary

Most circuits hold that medical providers exercise professional discretion relied upon by insurers and therefore occupy a position of trust, allowing the § 3B1.3 enhancement. The Eleventh Circuit alone requires a formal fiduciary relationship and therefore bars the enhancement in this context.

Parties & Counsel

Parties

Appellant:Chang Goo Yoon
Appellee:United States of America

Legal Counsel

Appellant:Leigh Ann Webster, Strickland Webster, LLC
Appellee:Karen L. Eisenstadt, Assistant U.S. Attorney; Leah B. Foley, United States Attorney (on brief)