Was physician responsible for patient's decline in condition during transport due to discontinuing bipap for transport?

80 year old male with COPD admitted to hospital with bronchitis. Later diagnosed with sepsis & penumonia. Patient requested to be transferred to VA hospital. On day of transfer patient's condition worsened. Physician ordered ABG and based on those results patient was placed on bipap. Patient on bipap for 1+ hours then discontinued - within 30 min. of discontinuing was loaded for transport. Pt became critical during 1+ hour transport. Pt was to be admitted to telemetry unit at receiving facility. Patient's newcondition required he be placed in ICU. Phys was upset & verbal when family told her patient had been on bipap earlier. Receiving phys unaware & even stated patient was not medically stable for transport. Pt's mental status has significantly changed. Is Physician responsible?