Dianon Systems, INC

Dianon Systems, INC was paid $8.47M by Medicaid between Jan 2018 and Dec 2024, across 29 billing codes. Its largest line is 88305, Level IV - Surgical pathology, gross and microscopic examination — 64% of everything it billed.

33Billing provider infoDIANON SYSTEMS, INC
SHELTON, CT 06484

33aNPI1962480608assigned 01/04/2006

33bProvider typeClinical Medical Laboratory

28Total paid$8.47M

24GClaims275,852

24DCodes billed29

24AFirst – last monthJan 2018 – Dec 2024

Compared with peers

Next to other Clinical Medical Laboratory providers in Connecticut

Rank by total paid#3 of 27

Median peer was paid$561K

This provider vs. median15×

Peers share this provider's primary NPPES type and state. Size alone says nothing about billing quality: a big agency or a hospital system is expected to sit far above the median.

Auditor's notes

Automated statistical signals. Not evidence of fraud — how these are computed.

Entity ProliferationAuthorized official WILLIAMS, KIMBERLY controls 20+ related entities in our dataset. Read more

Box 24A · Dates of service

Paid by month

Paid that monthNov–Dec 2024: claims still arriving when the file was cut, so these months run low for every provider

By year, as a table

Year	Claims	Paid
2018	33,131	$925K
2019	33,752	$1.00M
2020	29,876	$946K
2021	42,947	$1.27M
2022	48,965	$1.35M
2023	47,215	$1.64M
2024incomplete	39,966	$1.35M

Box 24 · Service lines

What it billed for

Code	Service	Share	Claims	Bene. records	Paid
88305	Level IV - Surgical pathology, gross and microscopic examination	64%	143,498	131,851	$5.41M
88312		9.6%	27,430	26,421	$817K
88120		5.3%	5,678	5,311	$448K
88313		5.2%	22,227	21,226	$437K
88342		4.2%	14,632	13,729	$353K
88341		2.6%	5,510	5,015	$223K
88112		1.9%	9,761	9,027	$159K
88304		1.8%	15,269	14,240	$153K
88108		1.5%	6,070	5,775	$125K
88344		1.5%	1,712	1,577	$124K
88173		<1%	1,755	1,467	$52K
88365		<1%	1,156	1,047	$32K

17 more codes

82232	<1%	4,616	$32K
88364	<1%	1,020	$26K
88321	<1%	744	$17K
82043	<1%	4,288	$10K
88350	<1%	324	$9K
88185	<1%	42	$7K
88302	<1%	554	$6K
81001	<1%	4,765	$6K
84156	<1%	3,695	$5K
88346	<1%	341	$4K
88307	<1%	94	$3K
88189	<1%	80	$2K
88311	<1%	381	$2K
88184	<1%	42	$585.51
88237	<1%	14	$370.95
88264	<1%	13	$366.06
99080	0%	141	$0.00

Claims and beneficiary counts add up across code × month rows, so one patient seen every month counts many times. Rows with fewer than 12 claims are suppressed by HHS, so small lines can be missing.

From NPPES

Who's on the registration

Authorized officialWILLIAMS, KIMBERLY (VP)

Same official

Other billing entities under WILLIAMS, KIMBERLY

Full network →

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Matched on the authorized-official name exactly as entered in NPPES. A common name can match unrelated people.