Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mitchell Ross Lester, MD

Allergy Physician in Norwalk, CT · enumerated 2006.

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

National Provider Identifier

1881785673

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Registry record

Entity type Individual (Type 1)

Name Mitchell Ross Lester

Credential MD

Sex Male

Practice address 148 E Avenue, Ste 3g, Norwalk, CT, 06851

Phone (203) 838-4034

Fax (203) 853-6361

Enumeration date Sep 27, 2006

Last updated in NPPES Feb 19, 2025

Taxonomy & licenses

207KA0200X Allergy Physician Allopathic & Osteopathic Physicians · License 038127 (CT) 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 1881785673 active?

Yes, as of the latest NPPES snapshot, NPI 1881785673 is active (record last updated 2025-02-19).

How do I verify Mitchell Lester's NPI record?

Cross-check NPI 1881785673 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 2025-02-19.