Maine
Office of Professional and Occupational Regulation
JOHN A. HALLBERG, M.D.
Medicine - Medical Doctor
License number
MD19761
Date granted
09/19/2013
Date expires
06/30/2016
Class
Medicine - Medical Doctor
Status
Active
mainelicensing.org
ID 21133505
LAST UPDATED 2026-05-06 21:08:17 UTC
LAST UPDATED 2026-05-06 21:08:17 UTC
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