Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Matthew J Tierney, D.O.

Surgery Physician in Plymouth, MA · enumerated 2005.

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

National Provider Identifier

1134105646

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Registry record

Entity type Individual (Type 1)

Name Mr. Matthew J Tierney

Credential D.O.

Sex Male

Practice address 46 Obery St, Plymouth, MA, 02360

Phone (508) 746-6385

Fax (508) 747-6685

Enumeration date Dec 16, 2005

Last updated in NPPES Jul 5, 2022

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 217632 (MA) 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
J27151	Other	MA	BCBSMA
3657254	Other	MA	AETNA/US HEALTHCARE
AA15261	Other	MA	HARVARD PILGRIM HEALTHCAR
2036070	Medicaid	MA	-
468752	Other	MA	TUFTS HEALTH PLAN
1701676	Other	MA	UNITED HEALTHCARE

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

How do I verify Matthew Tierney's NPI record?

Cross-check NPI 1134105646 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1134105646 active?

Yes, as of the latest NPPES snapshot, NPI 1134105646 is active (record last updated 2022-07-05).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-05.