Australia Medicare Card Identifier
Identifies Australian Medicare card numbers (10-11 digits, first digit 2-6). Filters same-digit sequences. Requires corroborative health-scheme keywords for reliable detection.
- Type
- regex
- Engine
- universal
- Confidence
- medium
- Confidence justification
- Medium confidence: eight-digit numbers are common. Validator function and health-scheme keywords significantly improve accuracy. AllDigitsSameFilter removes trivial matches.
- Detection quality
- Mixed
- Jurisdictions
- au
- Regulations
- HRIPA (Cth), IPA 2009 (Qld), My Health Records Act 2012 (Cth), NDB Scheme (Cth), Privacy Act 1988 (Cth)
- Frameworks
- ISO 27001, ISO 27701, SOC 2
- Data categories
- phi, health, government-id
- Scope
- narrow
- Risk rating
- 8
- Platform compatibility
- Purview: Compatible, GCP DLP: Compatible, Macie: Compatible, Zscaler: Compatible, Palo Alto: Compatible, Netskope: Unsupported
Pattern
\b[2-6]\d{3}[\s-]?\d{5}[\s-]?\d(?:[\s-]?\d)?\bCorroborative evidence keywords
health scheme, health fund, provider number, patient ID, medical account, Medibank, bulk billing, health cover, medicare, medicare number, medicare card, medicare no, health insurance number
Proximity: 300 characters
Should match
2123456701— Ten-digit Medicare card number (first digit 2-6)3456 78901 2— Ten-digit Medicare card with display spacing41234567890— Eleven-digit Medicare card with IRN
Should not match
1234567890— First digit 1, not a valid Medicare prefix (2-6)234567— Too short for a Medicare card number234567890123— Twelve digits, too long
Known false positives
- Generic eight-digit reference numbers in non-health contexts. Mitigation: Require health-scheme keywords in proximity. AllDigitsSameFilter removes trivial matches.