Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William J O'Brien III, DO

Family Medicine Physician in Bensalem, PA · enumerated 2006.

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

National Provider Identifier

1295774487

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Registry record

Entity type Individual (Type 1)

Name Dr. William J O'Brien III

Credential DO

Sex Male

Practice address 3554 Hulmeville Rd, Suite 103, Bensalem, PA, 19020

Phone (215) 504-9255

Fax (215) 504-9260

Enumeration date Jun 5, 2006

Last updated in NPPES Nov 10, 2014

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License OS008318L (PA) 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
0796664000	Other	PA	IBC
507702	Other	PA	AETNA

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

Is NPI 1295774487 active?

Yes, as of the latest NPPES snapshot, NPI 1295774487 is active (record last updated 2014-11-10).

How do I verify William O'Brien's NPI record?

Cross-check NPI 1295774487 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-11-10.