A new report released by the New York State Department of Health reveals that veteran comedienne Joan Rivers may have been a victim of negligence when she died three months ago. The inquiry found that the clinic where she underwent the routine procedure failed to fulfill certain requirements.

The report shows Yorkville Endoscopy Clinic, where Rivers was treated, committed various procedural offenses: not weighing Rivers, a requirement when administering anesthesia; not getting approval for some of the procedures; and, having unauthorized personnel perform a procedure.

The reference to signing consent forms concerns the fact that Rivers only signed off on having an endoscopy performed, but her personal physician did a laryngoscopy. Her physician was not authorized to perform procedures at the clinic.

According to CNN, the report failed to list Rivers' name, referring her to her as "Patient 1." Doctors also did not record or failed to notice her deteriorating condition during the procedure; failed to properly document the dose of Propofol, the anesthesia used; and violated their own cell phone policy. (One of the health care workers used his or her phone to snap a photo of the comedienne when she was unconscious.)

"In response to the statement of deficiencies, Yorkville immediately submitted and implemented a plan of correction that addressed all issues raised. The regulatory agencies are currently reviewing the corrective plan of action and have been in regular contact with Yorkville," the clinic said in a statement. "In addition, the physicians involved in the direct care and treatment referenced in the report no longer practice or provide services at Yorkville."

New York Daily News has revealed the identities of both the clinic's gastroenterologist, Dr. Lawrence Cohen, and her personal doctor, Dr. Gwen Korovin.

According to the report, Korovin performed two laryngoscopies without Rivers consent, saying, "I'm going in first."

The attorney of Melissa Rivers, the late star's daughter, released a statement concerning the report's findings, according to People.

"Our client, Melissa Rivers, is terribly disappointed to learn of the multiple failings on the part of medical personnel and the clinic as evidenced by the CMS report," the statement said. "As any of us would be, Ms. Rivers is outraged by the misconduct and mismanagement now shown to have occurred before, during and after the procedure."