Prince saw a doctor the day before his death and was dished out prescriptions for various "medications." Dr. Michael Todd Schulenberg - who specialises in family medicine - is currently under investigation after a search warrant carried out on May 5 discovered he'd treated the late 'Purple Rain' hitmaker on April 7 and April 20. The police affidavit, which was obtained by the Los Angeles Times, states Dr. Schulenberg performed tests and prescribed drugs on both occasions for a mystery ailment. However, it's not known whether the late legendary singer - who tragically passed away at his Paisley Park estate in Minnesota on April 21 - had taken the medication. Law enforcement officers also raided Prince's home in Minneapolis, Minnesota again and obtained medical records from the hospital where Dr. Schulenberg had worked. Lesa Bader, a spokeswoman for North Memorial Medical Center, confirmed the doctor had worked for its Minnetonka clinic when Prince was found dead in an elevator at his home but he now no longer works for the healthcare system. Police are currently investigating what role painkillers played in the singer's tragic death after the autopsy flagged up that he had Percocet, which contains acetaminophen and oxycodone, in his system when he was found dead. It also emerged that Prince was scheduled to see a doctor about his addiction to painkillers the day after his death. The musician's representatives called Dr. Howard Kornfeld, a national authority on opioid addiction treatment, on April 20 and asked him to go to Prince's home because they were "dealing with a grave medical emergency" but it was too late. A post-mortem examination carried out on the 57-year-old singer's body shortly after his death has ruled out suicide, but the full results could take weeks to come through.