This study examines those practices, known as bid shopping, and its effects on the private sector of the construction industry. Bid shopping is primarily used by contractors and subcontractors to gain an unfair advantage over their clients, competition and subcontractors during the bidding process.
MA61: Missing/incomplete/invalid Social Security number or health insurance claim number (HICN). MA36: Missing /incomplete/invalid patient name. MA27: Missing/incomplete/invalid entitlement number or name shown on the claim. â¢ Review and make a copy of patientâs Medicare card for file and verify eligibility.
In this example, the Medicare provider number would be 1234561A. A Medicare provider number lets you: 1  claim Medicare benefits for services you provide at a particular practice location. 2  refer patients to another practice where they can claim a Medicare benefit, such as.  to another health professional.