PHOENIX — President Barack Obama is making a first-time visit to the Arizona veterans’ hospital that triggered a national examination into how the government cares for its former service members to get an appraisal on the health system’s progress and its lingering needs.

Obama will travel to Phoenix today to draw attention to the Veterans Affairs Department response to widespread mismanagement where VA workers falsified waiting lists to conceal chronic delays in care.

The visit comes amid questions from lawmakers who say veterans are still not benefiting from changes in the law that were meant to improve their access to care. A month ago, Obama drew criticism for traveling to Phoenix without stopping at the VA hospital.

Obama, joined by the new VA secretary, Robert McDonald, is expected to meet with veterans, VA employees, veterans’ groups and elected officials, including Sens. John McCain and Jeff Flake, the two Republican senators from Arizona. McCain has been especially critical of the administration’s response to the VA’s troubles.

The White House defended the VA’s actions to correct problems.

“Long after it fades from the headlines, this is something a lot of people have been working on and that he president feels strongly about,” White House spokesman Eric Schultz said.

Today’s visit comes at the end of a two-day West Coast trip by Obama. He was in Los Angeles on Thursday attending a Democratic Party fundraiser and taping an appearance on ABC’s late-night show “Jimmy Kimmel Live.”

The Phoenix VA Medical Center prompted scrutiny last year following reports that dozens of veterans died while awaiting treatment at the hospital. The ensuing scandal prompted the ouster of VA Secretary Eric Shinseki. The agency’s Phoenix director, Sharon Helman, also lost her job.

A series of government reports said workers throughout the country falsified wait lists while supervisors looked the other way. While veterans encountered chronic delays, the reports found managers who falsely appeared to meet on-time goals received bonuses.

An administrative judge concluded Helman was not at fault over delays in care and secret waiting lists, but determined the agency was justified in firing her because she accepted improper gifts from a health care organization.

The Phoenix office brought a respected former director out of retirement to take controls of the office for a one-year assignment. Glen Grippen told an Arizona legislative panel this week the Phoenix office has hired 320 new staff since January 2014, is opening three new Phoenix-area clinics and is preparing to remodel its main Phoenix hospital.

The doctor who sounded the alarm on problems with the Phoenix VA and helped bring about the changes said he is still frustrated about what he sees as a slow pace in reforms being carried out.