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News Massachusetts Board of Medicine Takes Disciplinary Action

Disciplinary action ordered at the August 9, 2018 meeting of the Board
  • Board of Registration in Medicine

WakefieldAt its meeting on August 9, 2018, the Massachusetts Board of Registration in Medicine took disciplinary action against the medical licenses of John P. Katzenberg, M.D., Daniel C. Marotta, M.D., and David Siegel, M.D.

In a Final Decision & Order, the Board revoked Dr. John P. Katzenberg’s license to practice medicine after the Board found that Dr. Katzenberg engaged in a romantic relationship with a patient; prescribed controlled substances to a patient without adequate documentation; failed to maintain adequate medical records as to four patients; failed to respond to a Board subpoena and failed to cooperate in the investigation and adjudication of this matter. Dr. Katzenberg was first licensed to practice medicine in Massachusetts in 1984. Dr. Katzenberg is currently licensed to practice medicine in Florida where he resides.

The medical license of Dr. Daniel C. Marotta was suspended by the Board.  The suspension of Dr. Marotta’s limited license was immediately stayed as Dr. Marotta entered into a Probation Agreement. Dr.  Marotta was first licensed in the Commonwealth in 2015.

 In a Consent Order, the Board admonished the license of Dr. David Siegel after he agreed his interactions with 2 individuals violated the Board’s Disruptive Physician Behavior Policy.  Dr. Siegel has been licensed to practice medicine in Massachusetts since 2010.

The Massachusetts Board of Registration in Medicine licenses more than 40,000 physicians, osteopaths and acupuncturists.  The Board was created in 1894 to protect the public health and safety by setting standards for the practice of medicine and ensuring that doctors who practice in the Commonwealth are appropriately qualified and competent. The Board investigates complaints and determines sanctions. More information is available at, or you may contact the Board at


Board of Registration in Medicine 

The Board of Registration in Medicine is responsible for licensing, regulation, and discipline of Massachusetts physicians and acupuncturists.