NPI Portal NPI Lookup & Verification

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

Dr. David H Breen, MD

Pediatrics Physician in Dansville, NY · enumerated 2006 · practices at David H. Breen MD Pllc.

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

National Provider Identifier

1285662361

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Registry record

Entity type Individual (Type 1)
Name Dr. David H Breen
Credential MD
Sex Male
Practice address Dansville, NY, 14437
Fax (585) 235-2035
Enumeration date Jun 29, 2006
Last updated in NPPES Mar 25, 2009

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

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 122238 (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
105882DL Other - PFC
P010122238 Other - BC
P020122238 Other - BLS
00892439 Other - MED
050607970 Other - CHRMSCO
050607970 Other - CHVA
33807 Other - UCH 1
35667B Other NY MEDICARE OLD PTAN INDIVIDUAOL
000526488003 Other - BLSW
000526488003 Other - CMB
33807 Other - UHC 2
050607970 Other - CHSTW
050607970 Other - CIGNA
5265330 Other - AETNA
000526488003 Other - HNN
050607970 Other - CHEMP
050607970 Other - CHUNI
67043 Other - FHN
P010122238 Other - BCO

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

Is NPI 1285662361 active?
Yes, as of the latest NPPES snapshot, NPI 1285662361 is active (record last updated 2009-03-25).
How do I verify David Breen's NPI record?
Cross-check NPI 1285662361 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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-03-25.