Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Willis Marsh III, PHARMD

Pharmacist in New York, NY · enumerated 2022.

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

National Provider Identifier

1871237826

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Registry record

Entity type Individual (Type 1)

Name Willis Marsh III

Credential PHARMD

Sex Male

Practice address 50 Water St, New York, NY, 10004

Phone (212) 908-8716

Fax (212) 908-3014

Enumeration date Apr 26, 2022

Last updated in NPPES Apr 26, 2022

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 068811-01 (NY) Primary

PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy. About the PHARMD 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

How do I verify Willis Marsh's NPI record?

Cross-check NPI 1871237826 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1871237826 active?

Yes, as of the latest NPPES snapshot, NPI 1871237826 is active (record last updated 2022-04-26).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-04-26.