Kissimmee-based HCA Florida Osceola Hospital named JoAnne Masongsong, MSN, RN, chief nursing officer, effective Sept. 3.

Marc Schaller was named COO of Jefferson Einstein Montgomery Hospital in East Norriton, Pa.

New York City-based Hospital for Special Surgery's associate CIO, Elizabeth Pearlman, will become the organization's new CIO on Sept. 10. 

Paula Carynski, MSN, RN, president of Rockford, Ill.-based OSF HealthCare Saint Anthony Medical Center, will retire Jan. 31.

Nashville, Tenn.-based HCA Healthcare, with 184 hospitals, has made several executive leadership changes recently.

Jodi Stack, MSN, RN, joined Greenfield, Mass.-based Baystate Franklin Medical Center as chief nursing officer/chief administrative officer. 

Dallas-based Medical City Healthcare has appointed Glenn Hardesty, DO, as chief medical officer of Medical City Denton and its Medical City Argyle campus.  

Melissa Wilson will join Freestone Medical Center in Plano, Texas, as its next CEO on Aug. 19.

The Hospital for Special Surgery in New York City has appointed Ashis Barad, MD, as its chief digital and technology officer, a newly established position.

St. Louis-based Ascension has named Alex Garrison AVP of revenue cycle performance measurement and reporting, according to his LinkedIn page. 

Mari Elliott was named COO of HCA Florida Largo Hospital, part of Nashville, Tenn.-based HCA Healthcare. 

Betsy Hart, MSN, has been appointed president and CEO of Glendale (Calif.) Memorial Hospital and Health Center, effective Aug. 19.

Glenda Villatoro, BSN, has been appointed COO of Del Sol Medical Center in El Paso, Texas. 

Amid recent transactions and acquisitions, some health systems have readjusted their leadership teams.

Several hospitals that are part of Sacramento, Calif.-based Sutter Health have added new CEOs to their executive teams.

Larry Van Der Wege is resigning from his role as administrator of Lindsborg (Kan.) Community Hospital.

McDonough District Hospital in Macomb, Ill., has appointed two leaders to its executive team.

Jordan Herget, CEO of Portneuf Medical Center in Pocatello, Idaho, will step down from his role Sept. 6 to assume a new position elsewhere.

Glen Martin, MD, has been appointed vice president of medical affairs for Baptist Medical Center Beaches in Jacksonville Beach, Fla., and Baptist Medical Center Nassau in Fernandina Beach, Fla. 

TriStar Hendersonville (Tenn.) Medical Center has named David Solomon CFO, according to his LinkedIn page.