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What does DOS stand for?

DOS stands for Date of Service (health insurance)

This definition appears very frequently and is found in the following Acronym Finder categories:

  • Science, medicine, engineering, etc.
  • Business, finance, etc.

See other definitions of DOS

Other Resources:
We have 261 other meanings of DOS in our Acronym Attic

Samples in periodicals archive:

Effective immediately, any Medicare Fee-For-Service claim with a date of service on or after Jan 1, 2010, must be received by your Medicare contractor no later than one calendar year (12 months) from the claim's date of service--or Medicare will deny the claim.