Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Andrew T Liu M D and Dorothy A Shoup M D A Professional Corporation

Specialist in Redwood City, CA · enumerated 2006 · authorized official Andrew Liu, Owner.

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

National Provider Identifier

1184676991

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Registry record

Entity type Organization (Type 2)

Legal business name Andrew T Liu M D and Dorothy A Shoup M D A Professional Corporation

Other name <Unavail>

Practice address 2900 Whipple Ave, #135, Redwood City, CA, 94062

Phone (650) 366-5594

Fax (650) 366-6352

Enumeration date May 17, 2006

Last updated in NPPES Mar 15, 2016

Taxonomy & classification

174400000X Specialist Other Service Providers · License G633320 (CA) Primary

Authorized official

Name Andrew Liu

Title Owner

Phone (650) 366-5594

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 type of organization is Andrew T Liu M D and Dorothy A Shoup M D A Professional Corporation?

Andrew T Liu M D and Dorothy A Shoup M D A Professional Corporation is registered in NPPES as a Specialist (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-03-15.