Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Alexander Chi Chen, MD

Pulmonary Disease Physician in Saint Louis, MO · enumerated 2007.

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

National Provider Identifier

1881802783

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Registry record

Entity type Individual (Type 1)

Name Dr. Alexander Chi Chen

Credential MD

Sex Male

Practice address 4921 Parkview Pl, Div Im Pulmonary and Ccm, Ste 8b, Saint Louis, MO, 63110

Phone (314) 454-8917

Fax (314) 454-5571

Enumeration date May 21, 2007

Last updated in NPPES Apr 15, 2025

Taxonomy & licenses

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 2004016896 (MO) 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
209290600	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 Alexander Chen practice?

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

What is the NPI number for Alexander Chen?

The National Provider Identifier (NPI) for Alexander Chen is 1881802783, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-15.