Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gloria S Yu, MD

Cytopathology Physician in Oakland, CA · enumerated 2007.

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

National Provider Identifier

1881891646

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Registry record

Entity type Individual (Type 1)

Name Dr. Gloria S Yu

Credential MD

Sex Female

Practice address 5020 Proctor Ave, Oakland, CA, 94618

Phone (510) 658-9817

Fax (510) 658-9817

Enumeration date Jun 27, 2007

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

207ZC0500X Cytopathology Physician Allopathic & Osteopathic Physicians · License A34635 (CA) Primary

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License A34635 (CA) Secondary

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

How do I verify Gloria Yu's NPI record?

Cross-check NPI 1881891646 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1881891646 active?

Yes, as of the latest NPPES snapshot, NPI 1881891646 is active (record last updated 2025-09-11).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.