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

Dr. Ethan Leo Welch, MD

Specialist in Webster, NY · enumerated 2011.

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

National Provider Identifier

1962709733

Verified

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Registry record

Entity type Individual (Type 1)

Name Dr. Ethan Leo Welch

Credential MD

Sex Male

Practice address Webster, NY, 14580

Phone (585) 787-0055

Enumeration date Feb 14, 2011

Last updated in NPPES Feb 14, 2011

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

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 81770 (NY) Primary

1744R1102X Research Study Specialist Other Service Providers · License 81770 (NY) Secondary

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
81770	Other	NY	NEW YORK STATE LICENSE

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 1962709733 active?

Yes, as of the latest NPPES snapshot, NPI 1962709733 is active (record last updated 2011-02-14).

How do I verify Ethan Welch's NPI record?

Cross-check NPI 1962709733 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 2011-02-14.