Normalised records

Normalised records (silver)

Each raw row is parsed into consistently formatted fields. Every change from the raw value is recorded as a data-quality flag.

Normalised rows

99,495

usable in matching

Flagged rows

99,881

99.9% carry at least one flag

Junk quarantined

505

no usable last name

Average quality score

0.75

1.00 = no corrections needed

Quality flags

What normalisation had to do, and how often. Select a flag to filter the table.

Placeholder values cleared71,257
Placeholder tokens such as NULL, N/A, UNKNOWN or "-" treated as empty
Whitespace trimmed57,061
Leading or trailing whitespace removed from one or more fields
Address re-cased56,490
Street line re-cased and punctuation removed
Street suffix standardised55,824
Street suffix standardised to USPS abbreviation (Street to St, Avenue to Ave, and so on)
Phone reformatted50,244
Phone reduced to ten digits, punctuation and leading country code removed
Name re-cased39,996
Name letter-case rewritten to Title Case and stray characters removed
Date of birth reformatted32,400
Date of birth rewritten to ISO 8601 from a source format (MM/DD/YYYY, YYYYMMDD, Mon D, YYYY)
City re-cased17,850
City re-cased to Title Case
Gender normalised16,828
Gender mapped to F or M from a longer or variant value
Email lower-cased11,635
Email lower-cased
Name split from “Last, First”9,980
First-name field held "LAST, FIRST"; the two parts were split into their own fields
State name converted to code9,084
Full state name replaced by its two-letter USPS code
ZIP+4 trimmed8,263
ZIP+4 trimmed to the five-digit ZIP
Member ID reformatted7,723
Member ID re-hyphenated and upper-cased to the UHC-#####-## pattern
ZIP missing7,146
Street address present but no ZIP supplied
Unit split from street6,994
Apartment, suite or unit designator split from street line and re-appended in standard form
Two-digit birth year6,661
Date of birth carried a two-digit year; century inferred by pivot
State code upper-cased4,010
Two-letter state code upper-cased
Plan code upper-cased3,278
Plan code upper-cased
SSN last four extracted2,817
Last four digits of SSN extracted from a longer or punctuated value
Date of birth unreadable2,274
Date of birth did not match any known format or was out of range; cleared
Phone missing area code2,021
Phone had only seven digits (no area code); cleared
Middle initial moved out of first name1,125
A single middle initial was embedded in the first-name field and moved to middle name
Date of birth missing990
Date of birth absent or a null token; left empty
No usable name (quarantined)505
No usable last name; record quarantined as junk and excluded from matching

Normalised records

Provider network, flag “Two-digit birth year”, junk only, lowest dq score first

All ENR CLM TPA PRV

Junk onlyFlagTwo-digit birth yearClear

Record	Source	Name	DOB	Member ID	Phone	Address	Quality score	Flags
PRV-27416	PRV	—Junk	1940-02-18	UHC-46209-51	6852917215	3684 Church St, Charlotte, NC, 28202	0.50	Two-digit birth year Phone reformatted Street suffix standardised Address re-cased+3 more
PRV-29149	PRV	Loogan GJunk	2006-12-10	UHC-62238-01	5295275418	7132 Main St, Atlanta, GA, 30364	0.50	Two-digit birth year Phone reformatted Street suffix standardised Address re-cased+3 more
PRV-23229	PRV	BJunk	1962-08-14	UHC-74741-25	6242312131	3629 Park Pl, Tucson, AZ, 85771	0.50	Two-digit birth year Phone reformatted Member ID reformatted ZIP+4 trimmed+3 more
PRV-22713	PRV	WJunk	1997-09-04	UHC-42544-68	7053117743	2246 Broadway Apt 10, San Diego, CA, 92126	0.54	Two-digit birth year Unit split from street Whitespace trimmed Placeholder values cleared+1 more
PRV-24113	PRV	—Junk	2004-11-27	—	5989373221	1699 Hillcrest Rd, Miami, FL, 33123	0.62	Two-digit birth year Phone reformatted City re-cased Email lower-cased+3 more
PRV-22749	PRV	Heather SJunk	1960-05-18	—	7263988696	—	0.64	Name re-cased Two-digit birth year Phone reformatted Email lower-cased+2 more
PRV-28954	PRV	—Junk	1968-08-11	UHC-98509-15	2576519807	2551 Willow Ct, Seattle, WA, 98154	0.66	Two-digit birth year Phone reformatted Whitespace trimmed Placeholder values cleared+1 more
PRV-25555	PRV	KJunk	2001-03-24	UHC-80415-30	5789416159	—	0.68	Two-digit birth year Phone reformatted Placeholder values cleared No usable name (quarantined)

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