A recent evaluation obtained by The Associated Press revealed that the overall performance of the private health care provider for New York City's jails failed to improve in previous year. Corizon Health Inc, which had a three- year of contract worth $126 million, expired on December 31.

As per the annual review conducted by the city health department, the healthcare pioneer and leader received an overall rating of 'fair' in 2014 for the second year after being downgraded from 'good'.

Officials noted that the Brentwood, Tennessee-based Company improved its care of mentally ill inmates, who make up about 40% of the roughly 10,000 inmates in New York's sprawling Rikers Island jail complex.

The evaluation showed that the company did a 'subpar' job prioritizing the sickest inmates to be seen in jail health clinics.

A spokeswoman for Mayor Bill de Blasio said in a statement that Corizon's contract is still under review. In March, the mayor said administration officials were taking 'a hard look' at the company's contract.

The city health department, which is charged with providing health care to the jail, has not issued any formal requests for proposals to solicit new bids.

But a person knowing about the administration's discussions said it was likely that the city's public hospital system would take over inmate care.

Corizon's flat ratings came amid heightened scrutiny of the jails in the wake of a series of AP revelations last year about gruesome deaths of mentally ill inmates at Rikers.

Another AP report of last year showed that the timeliness and quality of jail health care was a factor in at least 15 inmate deaths deemed medical in nature since 2009.

City Councilwoman Elizabeth Crowley, said, "Big cities across the country are dropping contracts with Corizon because of its underperformance. You're an inmate in jail, but when you're in that clinician's space you are a patient and you deserve best quality health care for whatever your ailment is".