21st Century Veterans Equitable Treatment Act

21st Century Veterans Equitable Treatment Act - Directs the Secretary of Veterans Affairs to: (1) establish a maximum specialist referral period (the period between a veteran's referral to a specialty clinic of the Department of Veterans Affairs (VA) by a VA primary care physician and the actual appointment with a specialist); and (2) provide appropriate transportation to such appointments for qualified veterans.

Requires the Secretary, in any case in which such period is exceeded or in which transportation was not so provided, to promptly provide for such care or transportation from a private source and to reimburse such source at an appropriate rate. Requires expedited reimbursement procedures.

Directs the Secretary to include within standards of performance used for measuring VA medical care administration a standard of assessing improvements in appointment waiting times.