All lobbying filings

MASON STREET CONSULTING, LLC

Lobbying for COALITION FOR HEALTH AI, INC (CHAI) · Responsible AI in Health.

Filing Q4 termination

Reporting period

4th Quarter 2025

Oct 1 - Dec 31 · Posted Jan 18, 2026

Income

$30,000.00

What the client paid this registrant for the period.

Client based in

Massachusetts

Representation ended

Dec 4, 2025

The registrant reported terminating its work for this client.

Official filing document

Lobbyists on this filing 1

SUSAN S ZOOK

Previously held: Legislative Assistant, Senator Mike Crapo; Legislative Assistant, Representative Charlie Dent; Legislative Correspondent/Staff Assistant, Representative Tim Murphy

A "covered position" is a government job the lobbyist held in the 20 years before registering, which the law requires them to name. See the revolving door for former members of Congress across all filings.

Government bodies contacted 3

The chambers, agencies and offices the filer named. It does not say who inside them was contacted, or when. Each name opens every filing that named the same body.

Lobbying activity 1

Health Issues

Health AI Issues.

Source: federal Lobbying Disclosure Act filing, reproduced as filed. Bills are parsed from the activity descriptions.