April 08, 2020

Board reprimands Belfast physician Man admits to affair in early ’90s

BELFAST – Local physician David A. Thanhauser has been reprimanded by the state medical board for having an affair with a patient more than a decade ago.

Thanhauser accepted the reprimand in a signed consent agreement with the Maine Board of Licensure in Medicine on Tuesday. The inappropriate intimate relationship with the patient occurred in the early 1990s. In addition to the reprimand, Thanhauser must complete a board-approved course in ethics and boundaries within the next six months.

Thanhauser contacted the medical board in July 2005 and admitted that he had an affair with one of his patients. He also admitted that he knew at the time of the affair that he was prohibited from having a sexual relationship with a patient, according to a board statement released Wednesday.

Board spokesman Randal Manning said Thanhauser reported the affair during “another process” involving the board. Manning declined to describe the process, revealing only that it was not disciplinary in nature.

As is the case with all medical board disciplinary actions, the Thanhauser situation will be reported to the National Practitioner Data Bank, the Health Integrity and Protection Data Bank, and Federation of State Medical Boards Action Data Bank. The reports are reviewed by every state licensing board in the country.

The Maine Board of Licensure in Medicine is made up of six physicians and three members of the public appointed by the governor. Disciplinary actions taken by the board are available to the public either by telephone at 287-3601 or on the board’s Web site at docboard.org/me/me home.


The licensure board is the state agency charged with protecting the health and welfare of the public by verifying the qualifications of physicians to practice and to discipline physicians for unprofessional conduct and incompetence. Any resident can request an investigation of a physician by contacting the board by telephone at 287-3608, by letter, or by visiting the board’s Web site.

Correction: This article ran on page C4 in the Coastal and Final editions.

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