Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Sema4 Opco, Inc

Q: What type of organization is Sema4 Opco, Inc?

Sema4 Opco, Inc is registered in NPPES as a Clinical Medical Laboratory (its primary provider taxonomy).

Clinical Medical Laboratory in Branford, CT · enumerated 2016 · authorized official Danielle Watimar, Payor Analyst.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1518415991

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Registry record

Entity type Organization (Type 2)

Legal business name Sema4 Opco, Inc

Practice address 1 Commercial St, Branford, CT, 06405

Phone (800) 298-6470

Enumeration date Sep 14, 2016

Last updated in NPPES Aug 31, 2022

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories Primary

Authorized official

Name Danielle Watimar

Title Payor Analyst

Phone (240) 429-3142

Other identifiers

Identifier	Type	State	Issuer
07D2101517	Other	-	CLIA ID NUMBER

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What type of organization is Sema4 Opco, Inc?

Sema4 Opco, Inc is registered in NPPES as a Clinical Medical Laboratory (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-08-31.