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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Grace Si-Wah Eng, MD

Endocrinology, Diabetes & Metabolism Physician in Emeryville, CA · enumerated 2006 · practices at Stanford Health Care.

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

National Provider Identifier

1871552679

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Registry record

Entity type Individual (Type 1)
Name Grace Si-Wah Eng
Credential MD
Sex Female
Practice address 5800 Hollis St, Emeryville, CA, 94608
Phone (510) 806-2100
Fax (510) 806-2557
Enumeration date Mar 21, 2006
Last updated in NPPES Apr 29, 2024

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A86467 (CA) Secondary
207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License A86467 (CA) Primary
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.

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Frequently asked questions

Is NPI 1871552679 active?
Yes, as of the latest NPPES snapshot, NPI 1871552679 is active (record last updated 2024-04-29).
How do I verify Grace Eng's NPI record?
Cross-check NPI 1871552679 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-29.