Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Angela Leigh Alt, MD

Urology Physician in Chesterfield, MO · enumerated 2007.

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

National Provider Identifier

1801915038

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Registry record

Entity type Individual (Type 1)

Name Mrs. Angela Leigh Alt

Credential MD

Sex Female

Practice address 224 S. Woods Mill Rd, Suite 510 South, Chesterfield, MO, 63017

Phone (314) 434-6130

Fax (314) 434-1277

Enumeration date Mar 28, 2007

Last updated in NPPES Jun 13, 2011

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License 49650 (MN) Secondary

208800000X Urology Physician Allopathic & Osteopathic Physicians · License 2010039653 (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
P00427411	Other	MN	RAILROAD MEDICARE
995102000	Medicaid	MN	-

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 Angela Alt?

Angela Alt is registered in NPPES with the primary taxonomy of Urology 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 2011-06-13.