NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Matthew Bronstein, M.D.

Surgical Critical Care Physician in Valhalla, NY · enumerated 2014.

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

National Provider Identifier

1386058394

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Matthew Bronstein
Credential M.D.
Sex Male
Practice address 100 Woods Rd, Valhalla, NY, 10595
Enumeration date Jun 17, 2014
Last updated in NPPES Mar 30, 2020

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 292430-01 (NY) Secondary
2086S0102X Surgical Critical Care Physician Allopathic & Osteopathic Physicians · License 292439 (NY) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

How do I verify Matthew Bronstein's NPI record?
Cross-check NPI 1386058394 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1386058394 active?
Yes, as of the latest NPPES snapshot, NPI 1386058394 is active (record last updated 2020-03-30).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-03-30.