Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Justin S Kroll

Prevention Professional in Port Huron, MI · enumerated 2019.

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

National Provider Identifier

1609410596

Verified

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Registry record

Entity type Individual (Type 1)

Name Justin S Kroll

Sex Male

Practice address Port Huron, MI, 48060

Phone (810) 300-8536

Enumeration date Nov 4, 2019

Last updated in NPPES Dec 10, 2020

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

405300000X Prevention Professional Other Service Providers · License 1863 (CT) Primary

Other identifiers

Identifier	Type	State	Issuer
1863	Medicaid	CT	-
0000000	Other	-	DO NOT HAVE

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 specialty is Justin Kroll?

Justin Kroll is registered in NPPES with the primary taxonomy of Prevention Professional. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-12-10.