Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Ark Laboratory LLC

Clinical Medical Laboratory in Waterford, MI · enumerated 2012 · authorized official James Grossi, Owner.

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

National Provider Identifier

1700120938

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Registry record

Entity type Organization (Type 2)

Legal business name Ark Laboratory LLC

Other name <Unavail>

Practice address 6620 Highland Rd., Suite 240, Waterford, MI, 48327

Phone (888) 275-5221

Fax (888) 275-5224

Enumeration date Nov 9, 2012

Last updated in NPPES Mar 5, 2021

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories Primary

Authorized official

Name James Grossi

Title Owner

Phone (888) 275-5221

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

Where is Ark Laboratory LLC located?

The practice location on file with NPPES is in Waterford, MI.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2021-03-05. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-05.