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

Patti S Klein, MD

Specialist in Manhasset, NY · enumerated 2006.

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

National Provider Identifier

1538244397

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Registry record

Entity type Individual (Type 1)

Name Patti S Klein

Credential MD

Sex Female

Practice address Manhasset, NY, 11030

Phone (201) 310-7245

Fax (201) 845-8433

Enumeration date Oct 27, 2006

Last updated in NPPES Jul 27, 2021

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

Taxonomy & licenses

174400000X Specialist Other Service Providers · License MA04541300 (NJ) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1538244397 active?

Yes, as of the latest NPPES snapshot, NPI 1538244397 is active (record last updated 2021-07-27).

How do I verify Patti Klein's NPI record?

Cross-check NPI 1538244397 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-07-27.