Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Troy Matthew Hollowell, HIS

Hearing Instrument Specialist in Marion, IL · enumerated 2020.

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

National Provider Identifier

1659903862

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Registry record

Entity type Individual (Type 1)

Name Mr. Troy Matthew Hollowell

Credential HIS

Sex Male

Practice address 2406 Williamson County Pkwy, Marion, IL, 62959

Phone (618) 997-5856

Fax (618) 997-5856

Enumeration date Feb 5, 2020

Last updated in NPPES Feb 5, 2020

Taxonomy & licenses

237700000X Hearing Instrument Specialist Speech, Language and Hearing Service Providers · License 3338 (IL) Primary

Other identifiers

Identifier	Type	State	Issuer
3338	Other	IL	HEARING AID DISPENSER LICENSE

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

How do I verify Troy Hollowell's NPI record?

Cross-check NPI 1659903862 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1659903862 active?

Yes, as of the latest NPPES snapshot, NPI 1659903862 is active (record last updated 2020-02-05).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-05.