NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Paul Brian Hart, MD

Internal Medicine Physician in Tonawanda, NY · enumerated 2007 · practices at Richard S Castaldo MD, PC.

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

National Provider Identifier

1417000829

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Paul Brian Hart
Credential MD
Sex Male
Practice address 533 Niagara St, Tonawanda, NY, 14150
Phone (716) 743-5450
Enumeration date Jan 19, 2007
Last updated in NPPES Feb 19, 2008

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 186744-1 (NY) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
000523958002 Other NY BLUE CROSS
3007674 Other NY INDEPENDENT HEALTH
00020008602 Other NY UNIVERA

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 1417000829 active?
Yes, as of the latest NPPES snapshot, NPI 1417000829 is active (record last updated 2008-02-19).
How do I verify Paul Hart's NPI record?
Cross-check NPI 1417000829 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-02-19.