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Effective January 1, 2007
Medicare is implementing a revised HCFA 1500 format to allow addition of the National Provider Identifier (NPI). Medicare will begin testing claims processing using NPI numbers along with legacy Provider ID numbers in January for a final implementation date of 5/23/2007. Commercial plans may choose to implement earlier, but must accept the NPI no later than 5/23/2007. Once fully implemented, the NPI replaces all other provider IDs with payors. Computer/Practice Management Software vendors and clearinghouses should be prepared for this by January 1. Providers who have not applied for their NPI number should do so ASAP to avoid the rush.

Since May 1, 2006 providers cannot make a change to their enrollment or apply for a new Medicare number without the NPI. CMS will also begin a system of verifying the provider information for all physicians in their system, especially those that have been participating prior to the implementation of the new enrollment system in October of 2000. If a physician is reassigning payments to a Practice Tax ID number, the Practice entity must also apply for a number to link to the physician’s NPI. For an overview of the NPI system, go to:

  • NPI System Overview

    To apply for NPI’s

  • NPI Application/Update Form [PDF, 68KB] – to download the form

  • National Plan and Provider Enumeration System (NPPES) – to apply online.

    Additional data on the revised Form CMS-1500 & NPI Testing is available at following link:

  • Form CMS-1500 & NPI Testing



  • Medical Management Associates, Inc. has worked closely with our clients to keep them aware of changes in the federal and state regulations that will affect the day-to-day operation of their organizations. We have been especially involved with assisting our clients to create and maintain compliance with regulations involving claims submission and reimbursement.

    Some HIPAA rules are final, while some are in their final stages of approval and there are proposed modifications. HIPAA compliance will be a constantly evolving process. Therefore, this site will also evolve to add updates, links and MMA created forms, assessment tools and manuals.

    Please contact us if you would like MMA to help you with your staff training, a HIPAA awareness program for your practice or to perform an onsite assessment of your current level of compliance.


    Links to HIPAA Regulations, Guidances & Updates




    For additional information, please contact: Send MMA an Email








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    Medical Management Associates, Inc.
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