The Universal Patient Identifier: a discussion and proposal.

P. C. Carpenter, C. G. Chute

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


The broad-based need for a standard, robust patient identifier is reviewed. Advantages and difficulties of the Social Security Number are considered. An alternative number, composed of birthdate, location, and check digits, is proposed. Logistic extensions of the geographically based schema are made for provider and facility identification. Several variations of representation are described in base 34, which make the composite number short, easily derived and decoded, and robust.

Original languageEnglish (US)
Pages (from-to)49-53
Number of pages5
JournalProceedings / the ... Annual Symposium on Computer Application [sic] in Medical Care. Symposium on Computer Applications in Medical Care
StatePublished - 1993
Externally publishedYes


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