Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Dag Medical, PC

Q: What is the NPI number for Dag Medical, PC?

The NPI for Dag Medical, PC is 1518292531, a Type 2 (organization) record in the CMS NPPES registry.

Surgery Physician in Bronx, NY · enumerated 2009 · authorized official David Greuner, Owner.

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

National Provider Identifier

1518292531

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Registry record

Entity type Organization (Type 2)

Legal business name Dag Medical, PC

Practice address 3411 White Plains Rd, Bronx, NY, 10467

Phone (516) 781-8100

Fax (516) 781-8133

Enumeration date Oct 8, 2009

Last updated in NPPES Oct 8, 2009

Taxonomy & classification

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 247175 (NY) Primary

Authorized official

Name David Greuner

Title Owner

Phone (516) 781-8100

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

Who is the authorized official for Dag Medical, PC?

NPPES lists David Greuner (Owner) as the authorized official for this organization.

What is the NPI number for Dag Medical, PC?

The NPI for Dag Medical, PC is 1518292531, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-10-08.