St. Joseph has said it will retain all employees from the 33-physician practice, which has eight locations.
The terms of the deal, which was originally announced in November, were not disclosed.
In October, St. Joseph Mercy agreed to merge with IHA, a 150-physician group.
Read the AnnArbor.com report on St. Joseph Mercy Health System.
Read previous coverage on St. Joseph Mercy Health System:
– St. Joseph Mercy Health System to Cut Jobs at 4 Michigan Hospitals
– Michigan’s St. Joseph Mercy Hospital Completes $155M Patient Tower