Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Grace S Liu, M.D.

MOHS-Micrographic Surgery Physician in Newport Beach, CA · enumerated 2006.

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

National Provider Identifier

1477564128

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Registry record

Entity type Individual (Type 1)

Name Dr. Grace S Liu

Credential M.D.

Sex Female

Practice address 3991 Macarthur Blvd, Suite 228, Newport Beach, CA, 92660

Phone (949) 863-0988

Fax (949) 863-0088

Enumeration date Aug 10, 2006

Last updated in NPPES Oct 12, 2007

Taxonomy & licenses

207ND0101X MOHS-Micrographic Surgery Physician Allopathic & Osteopathic Physicians · License A061446 (CA) Primary

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
W16839	Other	CA	MEDICARE GROUP NUMBER

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

What specialty is Grace Liu?

Grace Liu is registered in NPPES with the primary taxonomy of MOHS-Micrographic Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-12.