FLORENCE, Mont. -

The Montana Board of Medical Examiners has suspended the license of a Florence physician under federal and state investigation for the way he wrote prescriptions.

Last week, federal and state agents raided Big Creek Family Medicine and Urgent Care.

Dr. Chris Christensen is accused of running a practice that over-prescribed methadone and painkillers, that eventually resulted in the death of two patients.

In addition, investigators report Christensen prescribed 8,900 methadone tablets in a 133 day period to one patient. It works out to be about 67 tablets a day.

Christensen has been in trouble before. In 2001, he agreed voluntarily to give up his license after the Idaho State Board of Medicine accused him of prescribing drugs linked to at least two other overdose deaths.

In addition to giving up his license, he had to pay a $2,000 fine and go through a mandatory pain management course.  But he was still licensed to practice medicine in Washington and Montana.

In 2006, he was indicted on three federal counts for allegedly over-prescribing drugs when he practiced in Idaho.  In 2010, after two trials, he was cleared of those charges.

Christensen can request a hearing with the Montana Board of Medical Examiners. He has 20 days to do so.

Click here to read the Summary Suspension from the Board of Medical Examiners.