Dec. 29: Summa and its longtime emergency room physician group, Summa Emergency Physicians (SEA), fail to agree on a contract less than 48 hours before expiration.

Dec. 30: Summa announces it is replacing SEA at midnight on Dec. 31 with Canton-based US Acute Care Solutions (USACS).

Dec. 31: SEA turns over care to USACS.

Jan. 1: Summa’s medical residents announce a no-confidence vote in Summa CEO Dr. Thomas Malone.

Jan. 2: Some Summa employees say that they are seeing problems in ER, including longer-than-normal wait times and patients leaving ER without being treated.

Summa says transition is smooth.

Jan. 3: A national health accreditation organization confirms it received a complaint “of a patient safety concern at Summa.”

Jan. 5: More than 250 Summa doctors back a no-confidence vote in Malone and his leadership team.

Jan. 13: Malone tells the Beacon Journal that he is hurt by the physician no-confidence vote, but will not resign.

Jan. 24: A private law firm hired by Summa finds no conflicts of interest with the USACS contract.

The Beacon Journal reports the same law firm previously represented a medical billing company owned by USACS, in a civil lawsuit.

Jan. 26: Malone resigns, saying he has become a distraction. He will stay while Summa searches for a successor.

Feb. 9: A key accreditation body suspends Summa’s emergency medicine residency program effective July 1 and places the health system’s other residency programs on probation. Summa says it will appeal.

Feb. 16, 18: The Beacon Journal reports that the accreditation council found problems with patient care, USACS staff lacked teaching experience and a hostile work environment.

Feb. 20: USACS CEO Dr. Dominic Bagnoli says that if he and his business had not stepped up Jan. 1, Summa’s ERs may have had to turn away patients because no doctors would have been there.

Feb. 24: Summa hires Dr. Cliff Deveny, one of its former executives, as interim president and CEO.

March 12: The Beacon Journal reports that nine registered nurses who work at Akron City ER believe some physicians are putting patients’ lives in danger. Summa disputes the allegations, saying that every doctor is competent and board certified in emergency medicine.

March 13: Deveny becomes interim president and CEO.