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

Michael Chu, DO

Surgery Physician in West Islip, NY · enumerated 2008.

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

National Provider Identifier

1275784670

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Registry record

Entity type Individual (Type 1)

Name Michael Chu

Credential DO

Sex Male

Practice address West Islip, NY, 11795

Phone (631) 422-0909

Fax (631) 422-6660

Enumeration date Oct 2, 2008

Last updated in NPPES Nov 25, 2020

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

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License OS013322 (PA) Secondary

2086S0129X Vascular Surgery Physician Allopathic & Osteopathic Physicians · License 261287 (NY) Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 261287 (NY) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
059NB2	Other	-	BCBS
3313279	Other	-	UHC
1047328	Other	-	CIGNA
9578677	Other	-	AETNA

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

How do I verify Michael Chu's NPI record?

Cross-check NPI 1275784670 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1275784670 active?

Yes, as of the latest NPPES snapshot, NPI 1275784670 is active (record last updated 2020-11-25).

Other providers at this practice address

Browse all →

Eli Anker Vascular Surgery Physician · West Islip, NY NPI 1093733255 Eli Anker M.D.,P.C. Vascular Surgery Physician · West Islip, NY NPI 1588767438 Edward H. Cussatti,M.D., P.C.,LLC Surgery Physician · West Islip, NY NPI 1104094556 Jonathan Klonsky Surgery Physician · West Islip, NY NPI 1619130804

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-11-25.