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

Matthew D Galsky, MD

Medical Oncology Physician in New York, NY · enumerated 2006.

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

National Provider Identifier

1639140668

Verified

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Registry record

Entity type Individual (Type 1)

Name Matthew D Galsky

Credential MD

Sex Male

Practice address New York, NY, 10029

Phone (212) 241-6756

Fax (212) 423-0522

Enumeration date Jan 28, 2006

Last updated in NPPES Feb 25, 2019

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

Taxonomy & licenses

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License 220970 (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
100509873	Medicaid	NV	-
P00340820	Other	NV	RAILROAD MEDICARE

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

What specialty is Matthew Galsky?

Matthew Galsky is registered in NPPES with the primary taxonomy of Medical Oncology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-02-25.