William Mark Regan M.D.

License

Licensed by

Illinois Department of Financial and Professional Regulation

License number

33*****80

Status

Active

First issued

February 3, 2026

Expired

August 31, 2026

License holder

William Mark Regan

Entity type

Individual

Classifications

• Licensed Physician Controlled Substance (Medical Board) Physicians & Surgeons

More from the license record

Specialty

Practitioner

Controlled substance schedules

II III IV V

Current term began

02/03/2026

Other Illinois licenses under this name

• IL
  William Mark Regan M.D.

  License 036177893 · William Mark Regan

  Licensed Physician and Surgeon (Medical Board)
  Active

  Nashville, TN

  Expired Aug 31, 2026

Contact