Regex Tester & Validator

Matches a Medicare Health Insurance Claim Number (HICN) consisting of three digits, two digits, and four digits, followed by a single letter suffix. Hyphens between the digit groups are optional, so it accepts both '123-45-6789-A' and '123456789A' formats. Anchored at the start of the string, it is useful for validating or extracting Medicare beneficiary numbers in healthcare forms, claims processing, and data entry validation.