Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Alexis Chris Argoudelis, M.D.

Nephrology Physician in Saint Louis, MO · enumerated 2006 · practices at Nephrology and Hypertension Specialists, LLC.

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

National Provider Identifier

1639270002

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Registry record

Entity type Individual (Type 1)

Name Dr. Alexis Chris Argoudelis

Credential M.D.

Sex Male

Practice address Saint Louis, MO, 63141

Phone (314) 991-0137

Fax (314) 991-0603

Enumeration date Sep 26, 2006

Last updated in NPPES Aug 6, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 2007016504 (MO) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Alexis Argoudelis?

Alexis Argoudelis 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.

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.

Other providers at this practice address

Browse all →

Lissa Lopez-Concagh Nephrology Physician · Saint Louis, MO NPI 1619957917 Juan Garcia Nephrology Physician · Saint Louis, MO NPI 1801876198 Nephrology and Hypertension Specialists, LLC Nephrology Physician · Creve Coeur, MO NPI 1770554842 Margaret Meier Nephrology Physician · Saint Louis, MO NPI 1659723963 Katina Smith Adult Health Nurse Practitioner · Saint Louis, MO NPI 1245896893 Emmy Le Adult Health Nurse Practitioner · Saint Louis, MO NPI 1679294268

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-08-06.