Can Medicaid Put a Lien on Property After It Goes Through Probate?

My mother was a Medicaid recipient who passed away in New York City less than a year ago. She owned a co-op apartment that was transferred to me after it went through the probate process. Months later, I received a letter from Medicaid saying that it was putting a lien on the apartment. Can Medicaid do this after the apartment has gone through the process in court?