Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Wankin J Yu MD

Gastroenterology Physician in Leominster, MA · enumerated 2009 · authorized official Wankin Yu, Owner.

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

National Provider Identifier

1861626392

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Registry record

Entity type Organization (Type 2)

Legal business name Wankin J Yu MD

Practice address 105 Erdman Way, Leominster, MA, 01453

Phone (978) 466-7800

Fax (978) 466-9333

Enumeration date May 12, 2009

Last updated in NPPES May 12, 2009

Taxonomy & classification

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 59212 (MA) Primary

Authorized official

Name Wankin Yu

Title Owner

Phone (978) 466-7800

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.

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Frequently asked questions

Where is Wankin J Yu MD located?

The practice location on file with NPPES is in Leominster, MA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2009-05-12. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-05-12.