Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David Tin Chu, M.D.

Hematology & Oncology Physician in Port Jefferson Station, NY · enumerated 2007 · practices at North Shore Hematology Oncology Associates PC.

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

National Provider Identifier

1750585287

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Registry record

Entity type Individual (Type 1)

Name David Tin Chu

Credential M.D.

Sex Male

Practice address 49 Nesconset Hwy, Port Jefferson Station, NY, 11776

Phone (631) 751-3000

Fax (631) 675-2001

Enumeration date Jun 11, 2007

Last updated in NPPES Jan 31, 2020

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 250808 (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
03094680	Medicaid	NY	-
11303	Other	NY	MAGNACARE
7C2423	Other	NY	HEALTHNET
014CE1	Other	NY	BLUE SHIELD
250808-A10	Other	NY	HEALTHFIRST
8259306	Other	NY	CIGNA
091202000087	Other	NY	FIDELIS CARE OF NY
P00750946	Other	NY	RR MEDICARE
P4082661	Other	NY	OXFORD
201009000016	Other	NY	AFFINITY
4584734	Other	NY	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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is David Chu?

David Chu is registered in NPPES with the primary taxonomy of Hematology & Oncology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-31.