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

John Jaski, M.D.

Medical Oncology Physician in Rexford, NY · enumerated 2005 · practices at Schenectady Radiologists.

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

National Provider Identifier

1417944034

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Registry record

Entity type Individual (Type 1)
Name John Jaski
Credential M.D.
Sex Male
Practice address Rexford, NY, 12148
Phone (518) 399-4600
Fax (518) 399-0286
Enumeration date Sep 29, 2005
Last updated in NPPES Dec 3, 2009

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 118189 (NY) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 John Jaski's NPI record?
Cross-check NPI 1417944034 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1417944034 active?
Yes, as of the latest NPPES snapshot, NPI 1417944034 is active (record last updated 2009-12-03).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-12-03.