Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Xiaoling Wu, MD

Q: What is the NPI number for Xiaoling Wu?

The National Provider Identifier (NPI) for Xiaoling Wu is 1003899147, a Type 1 (individual) record in the CMS NPPES registry.

Internal Medicine Physician in Chesterfield, MO · enumerated 2005.

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

National Provider Identifier

1003899147

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Registry record

Entity type Individual (Type 1)

Name Xiaoling Wu

Credential MD

Sex Female

Practice address 224 S Woods Mill Rd, Suite 370 South, Chesterfield, MO, 63017

Phone (314) 878-2460

Enumeration date Nov 22, 2005

Last updated in NPPES Mar 20, 2017

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036099707 (IL) 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
06099707	Medicaid	IL	-
204638902	Medicaid	MO	-

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

Where does Xiaoling Wu practice?

The practice location on file with NPPES is in Chesterfield, MO. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Xiaoling Wu?

The National Provider Identifier (NPI) for Xiaoling Wu is 1003899147, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-20.