Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Matthew John Pierzala, D.O.

Internal Medicine Physician in Louisa, KY · enumerated 2006.

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

National Provider Identifier

1811931389

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Registry record

Entity type Individual (Type 1)

Name Matthew John Pierzala

Credential D.O.

Sex Male

Practice address 203 S Water St, Louisa, KY, 41230

Phone (606) 649-2211

Fax (606) 638-1399

Enumeration date Jun 15, 2006

Last updated in NPPES Dec 4, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 3522 (WV) Secondary

204C00000X Sports Medicine (Neuromusculoskeletal Medicine) Physician Allopathic & Osteopathic Physicians · License KY02941 (KY) Secondary

174400000X Specialist Other Service Providers Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License KY02941 (KY) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
1228266	Other	KY	CHA
P00340075	Other	KY	RAILROAD MEDICARE
2705602	Other	KY	OHIO DEPT OF JOB/FAMILY
7961767	Other	KY	AETNA
000000484549	Other	KY	ANTHEM
7100027040	Medicaid	KY	-

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.

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Frequently asked questions

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.

What specialty is Matthew Pierzala?

Matthew Pierzala is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-04.