Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Brian Mason

Anesthesiology Physician in Springfield, MA · enumerated 2015.

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

National Provider Identifier

1508251463

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Brian Mason

Sex Male

Practice address Springfield, MA, 01199

Phone (413) 794-0000

Enumeration date Mar 30, 2015

Last updated in NPPES Nov 17, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License A159304 (CA) Primary

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 1508251463 active?

Yes, as of the latest NPPES snapshot, NPI 1508251463 is active (record last updated 2023-11-17).

How do I verify Brian Mason's NPI record?

Cross-check NPI 1508251463 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 2023-11-17.