Hospital operations field notes

Evidence worth carrying into the room.

Concise, source-grounded guides for executives working through operating evidence, measurement boundaries, and human-owned decisions. Four useful resources—not a keyword archive.

Field note · Length of stay · 7 minute read

LOS vs GLOS: What Hospital Executives Should Compare

A practical guide to comparing observed hospital length of stay with CMS geometric mean length of stay without overstating what the difference means.

Open the field note

Field note · DRG methodology · 8 minute read

MS-DRG vs APR-DRG: Why Case Mix and Severity Differ

A source-grounded comparison of MS-DRG, APR-DRG, case mix index, severity of illness, and risk of mortality for hospital leaders.

Open the field note

Field note · Case mix index · 6 minute read

Case Mix Index for Hospital Executives: What Movement Means

What hospital CMI movement may indicate, what it cannot prove, and the coverage, distribution, and fiscal-year checks executives should request.

Open the field note

Field note · AI governance · 6 minute read

What Human-Owned AI Should Mean in Hospital Operations

A practical definition of human-owned AI for hospital operations: governed evidence, bounded assistance, explicit approvals, accountable owners, and auditable follow-through.

Open the field note