Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

James R. Nitzkorski, MD

Surgical Oncology Physician in Poughkeepsie, NY · enumerated 2009.

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

National Provider Identifier

1245471986

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Registry record

Entity type Individual (Type 1)

Name James R. Nitzkorski

Credential MD

Sex Male

Practice address 45 Reade Pl, Dyson Center, 3rd Floor, Poughkeepsie, NY, 12601

Phone (845) 483-6920

Fax (845) 483-6922

Enumeration date Mar 10, 2009

Last updated in NPPES Mar 23, 2017

Taxonomy & licenses

2086X0206X Surgical Oncology Physician Allopathic & Osteopathic Physicians · License 238729 (NY) Primary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 238729 (NY) Secondary

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
03336523	Medicaid	NY	-

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 James Nitzkorski?

James Nitzkorski is registered in NPPES with the primary taxonomy of Surgical 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-23.