Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Baron S. Lonner, M.D.

Specialist in New York, NY · enumerated 2006.

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

National Provider Identifier

1780657700

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Registry record

Entity type Individual (Type 1)

Name Dr. Baron S. Lonner

Credential M.D.

Sex Male

Practice address 820 2nd Ave, Suite 7a, New York, NY, 10017

Phone (212) 986-0140

Fax (212) 986-0160

Enumeration date Feb 9, 2006

Last updated in NPPES Oct 13, 2009

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 182500 (NY) Primary

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
134067705	Other	NY	TAX ID#

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

How do I verify Baron Lonner's NPI record?

Cross-check NPI 1780657700 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1780657700 active?

Yes, as of the latest NPPES snapshot, NPI 1780657700 is active (record last updated 2009-10-13).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-10-13.