NPI Portal NPI Lookup & Verification

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

Mrs. Noreen H Linn, M.D.

Allergy Physician in White Plains, NY · enumerated 2006.

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

National Provider Identifier

1043230600

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Registry record

Entity type Individual (Type 1)
Name Mrs. Noreen H Linn
Credential M.D.
Sex Female
Practice address White Plains, NY, 10604
Phone (914) 949-9882
Fax (914) 421-9091
Enumeration date Jul 19, 2006
Last updated in NPPES Feb 23, 2026

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

Taxonomy & licenses

207KA0200X Allergy Physician Allopathic & Osteopathic Physicians · License 149084 (NY) Primary
207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License 149084 (NY) Secondary
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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Noreen Linn?
The National Provider Identifier (NPI) for Noreen Linn is 1043230600, a Type 1 (individual) record in the CMS NPPES registry.
Where does Noreen Linn practice?
The practice location on file with NPPES is in White Plains, NY. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-23.