Medical Readiness and Tracking Act of 2004

Medical Readiness and Tracking Act of 2004 - Directs the Comptroller General to carry out a health study of Armed Forces reservists called or ordered to active duty for more than 30 days in support of Operation Enduring Freedom and Operation Iraqi Freedom.

Requires Selected Reserve members not on active duty to undergo physical fitness examinations every 30 months. Dispenses with physical fitness certification requirements.

Requires reassignment or separation of reservists who are not medically qualified for performance of their duties.

Requires the Secretary of Defense (Secretary) to establish a policy on deferral of medical treatment for reservists pending deployment.

Directs the Secretary to: (1) conduct a health assessment program for Armed Forces recruits; (2) convene a working group to improve the medical tracking system for deployed members of the Armed Forces; and (3) prescribe a Department of Defense (DOD) policy on the collection and dissemination of in-theater individual personnel location data.

Requires military installation commanders to conduct an anticipated health care needs assessment of members being redeployed.

Requires audits of DOD blood sample records and the health assessment database.

Directs the Secretary to facilitate declassification of certain data relevant to environmental hazards exposure.

Requires the Chief Information Officer of the Department of the Army to ensure that the Army Knowledge Online website includes specified information.

Directs the Secretary to take action to ensure full implementation of the Force Health Protection and Readiness Program.

Requires the preparation of various health-related reports.