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Brian Regan

FSA,MAAA
Principal and Consulting Actuary
Berwyn, PA, US

Brian Regan is a principal and consulting actuary with the Philadelphia office of Milliman. Formerly at Aetna, he joined the firm in 2013.

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Experience

Brian’s expertise resides in healthcare with a focus on Medicare Advantage and other retiree health benefits.

Brian has been heavily involved in various aspects of the retiree health insurance marketplace. Recently, he has assisted several carriers with submission of Medicare Advantage bids, supported the development of Milliman’s national Medicare Advantage pricing tool, supported the development of the Milliman Ages 65 and Over Health Cost Guidelines, and assisted valuations for OPEB health benefits.

Brian has a background in health insurance pricing, focusing on both small and large employer groups, as well as Medicare Advantage.

Publications

Read their latest work

Article

The Rural "Big Apple": How a single hospital can determine the Medicare acute facility wage index for an entire state

17 January 2025 - by Brian Regan, Drew Osborne, Maria Becker, Taylor Call
We show how a New York City provider increased wage indexes for most of the state by more than 10 percentage points by reclassifying itself as a rural hospital.
Video

The Big Rural Apple: Medicare reimbursement changes under the inpatient prospective payment system

13 November 2024 - by Taylor Call, Drew Osborne, Brian Regan, Sam Shellabarger
Join us for a discussion of the wage index calculations, including a case study of how one hospital in New York City was able to reclassify as “rural” and increase 2025 reimbursement in upstate New York by about 10%, after 2025 bids were submitted.
Video

Innovations in Medicare Research: The CMS Research Identifiable Files

09 August 2023 - by Jonah Broulette, Simon Moody, Rob Pipich, Brian Regan
Video

Webinar: Follow the money: Your guide to Medicare financial performance

10 August 2022 - by David Koenig, Kevin Pierce, Shyam Kolli, Brian Regan
Join our Milliman consultants as they explore Medicare Parts C & D from a financial perspective, highlighting recent financial performance, discussing key CMS files health plans use to monitor financials, considering cash flows including various settlements, and offering insights on risk-based capital considerations.
Video

Webinar: Chronic Kidney Disease in Medicare

19 January 2022 - by Maggie Alston, Brian Regan, Susan Silseth, Christopher Kunkel
Join our Milliman presenters for an overview of chronic kidney disease (CKD) and end-stage renal disease (ESRD) in the Medicare system.
Article

Key considerations in product design for actuaries for the 2021 MA pricing season

07 April 2020 - by Luis Maldonado, Sylvia Hagin, Brian Regan
Newly available product design options will require actuaries to develop new tools and processes in order to assist Medicare Advantage organizations in bid development.
Article

The Medicare Advantage Value-Based Insurance Design Model: Overview and considerations

19 February 2019 - by Catherine M. Murphy-Barron, Pamela M. Pelizzari, Brian Regan
This research brief describes the Value-Based Insurance Design model for Medicare Advantage organizations (MAOs) and explores key considerations for eligible MAOs considering participation in the model.