NPI Portal NPI Lookup & Verification

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

Mr. Dale M Janson, PA

Hematology & Oncology Physician in Stony Brook, NY · enumerated 2007.

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

National Provider Identifier

1326168337

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Registry record

Entity type Individual (Type 1)
Name Mr. Dale M Janson
Credential PA
Sex Male
Practice address Stony Brook, NY, 11794
Phone (631) 444-3577
Fax (631) 444-8909
Enumeration date Mar 31, 2007
Last updated in NPPES Aug 5, 2013

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

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 001743 (NY) Primary
PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA 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

Is NPI 1326168337 active?
Yes, as of the latest NPPES snapshot, NPI 1326168337 is active (record last updated 2013-08-05).
How do I verify Dale Janson's NPI record?
Cross-check NPI 1326168337 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-08-05.