Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. James Alvin Davis, MD

Nephrology Physician in Saint Louis, MO · enumerated 2006 · practices at Washington University.

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

National Provider Identifier

1518995299

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Registry record

Entity type Individual (Type 1)

Name Dr. James Alvin Davis

Credential MD

Sex Male

Practice address 10 Barnes West Dr, Div Im Nephrology, Ste 200, Saint Louis, MO, 63141

Phone (314) 362-7603

Fax (314) 747-5213

Enumeration date Jun 29, 2006

Last updated in NPPES Nov 12, 2021

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 2017033773 (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
200059782	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.

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Frequently asked questions

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.

What specialty is James Davis?

James Davis is registered in NPPES with the primary taxonomy of Nephrology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-12.