Tasha Jamerson, a spokeswoman for the D.A.'s office, said yesterday that the charges against Collier were withdrawn March 7.
Jamerson said a prosecutor who worked on the case had no additional information to provide regarding why the charges were dropped.
Collier's attorney, Brian J. McMonagle, said in an email yesterday: "I am greatly relieved that all charges against Dr. Collier were withdrawn by the DA's office. The District Attorney's Office showed great integrity in reinvestigating the case after we provided evidence which demonstrated his innocence. He can now return to a life dedicated to healing others."
Collier is a board-certified orthopedic surgeon who had affiliations with Hahnemann University Hospital, Thomas Jefferson University Hospital Methodist Division, St. Agnes Continuing Care Center and Wills Surgery Center. He also has a practice in South Philly.
Alexander Palmisano, 51 - who was among the three other men charged with drug offenses in November - is scheduled for a court appearance next week, according to court records.
Phillip Chestnut, 51, entered and completed a diversionary program after he was charged with possessing marijuana, records show. Steven Feldsher, 48, pleaded guilty to possessing a controlled substance and received six months of probation, according to court records.
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