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Dr. Maassen is on Doximity

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Education & Training

  • University of Alabama Medical Center
    University of Alabama Medical CenterResidency, Internal Medicine, 1974 - 1976
  • Indiana University School of Medicine
    Indiana University School of MedicineClass of 1974

Certifications & Licensure

  • PA State Medical License
    PA State Medical License 2010 - 2024
  • IL State Medical License
    IL State Medical License 1993 - 2020
  • MS State Medical License
    MS State Medical License 2002 - 2019
  • IN State Medical License
    IN State Medical License 1974 - 2019
  • MD State Medical License
    MD State Medical License 2017 - 2019
  • NM State Medical License
    NM State Medical License 2016 - 2019
  • AL State Medical License
    AL State Medical License Active through 2002
  • American Board of Internal Medicine Internal Medicine

Press Mentions

  • Companies Blanket Pa. With Ads About How to Get a Medical Marijuana Card, but Doctors Are Silenced
    Companies Blanket Pa. With Ads About How to Get a Medical Marijuana Card, but Doctors Are SilencedMay 26th, 2022
  • View Systems Inc : View Systems Targets $5.5 Billion Hair Restoration Market
    View Systems Inc : View Systems Targets $5.5 Billion Hair Restoration MarketOctober 26th, 2017
  • View Systems Inc : View Systems Launches Medical Therapeutics into a $7.64 Billion Market
    View Systems Inc : View Systems Launches Medical Therapeutics into a $7.64 Billion MarketOctober 10th, 2017