Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Demetrios N Macris, M.D.

Vascular Surgery Physician in San Antonio, TX · enumerated 2005.

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

National Provider Identifier

1801892930

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Registry record

Entity type Individual (Type 1)

Name Dr. Demetrios N Macris

Credential M.D.

Sex Male

Practice address 718 Lexington Avenue, Suite 102, San Antonio, TX, 78212

Phone (210) 420-8671

Fax (210) 899-1958

Enumeration date Jun 23, 2005

Last updated in NPPES Jun 12, 2024

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License J2667 (TX) Secondary

2086S0129X Vascular Surgery Physician Allopathic & Osteopathic Physicians · License J2667 (TX) 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
102130501	Medicaid	TX	-

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 is the NPI number for Demetrios Macris?

The National Provider Identifier (NPI) for Demetrios Macris is 1801892930, a Type 1 (individual) record in the CMS NPPES registry.

Where does Demetrios Macris practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-12.