Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Katherine Sy-Chu Wu, M.D
Specialist in Long Beach, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1255526729
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Registry record
Entity type Individual (Type 1)
Name Dr. Katherine Sy-Chu Wu
Credential M.D
Sex Female
Practice address 455 E Columbia St Ste 201, Long Beach, CA, 90806
Phone (562) 933-0400
Enumeration date Sep 7, 2007
Last updated in NPPES Jul 30, 2010
Taxonomy & licenses
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.
Frequently asked questions
Where does Katherine Wu practice?
The practice location on file with NPPES is in Long Beach, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Katherine Wu?
The National Provider Identifier (NPI) for Katherine Wu is 1255526729, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Lynn Messenger Specialist · Long Beach, CA NPI 1023203593 Cynthia Moore Specialist · Long Beach, CA NPI 1609061183 Helen Currie Specialist · Long Beach, CA NPI 1487849923 Margaret Tyree Specialist · Long Beach, CA NPI 1578758041 Peter Yeh Specialist · Long Beach, CA NPI 1154516615 Patricia Bellas Specialist · Long Beach, CA NPI 1609061159 Patricia R Goldenberg Specialist · Long Beach, CA NPI 1578758025 Elisa Nicholas Specialist · Long Beach, CA NPI 1013102581
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-07-30.