NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lewis Chamoy, MD

Surgery of the Hand (Surgery) Physician in Milwaukee, WI · enumerated 2005.

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

National Provider Identifier

1891796751

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Lewis Chamoy
Credential MD
Sex Male
Practice address 2500 N Mayfair Rd, Suite 670, Milwaukee, WI, 53226
Phone (414) 453-7418
Fax (414) 453-7420
Enumeration date Aug 2, 2005
Last updated in NPPES Jun 24, 2013

Taxonomy & licenses

2086S0105X Surgery of the Hand (Surgery) Physician Allopathic & Osteopathic Physicians · License 16789 (WI) 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
30887300 Medicaid WI —

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 1891796751 active?
Yes — as of the latest NPPES snapshot, NPI 1891796751 is active (record last updated 2013-06-24).
How do I verify Lewis Chamoy's NPI record?
Cross-check NPI 1891796751 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-06-24.