Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Ruben De Los Santos MD PA

Internal Medicine Physician in Eagle Pass, TX · enumerated 2008 · authorized official Ruben De Los Santos, Physician.

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

National Provider Identifier

1538337944

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Registry record

Entity type Organization (Type 2)

Legal business name Ruben De Los Santos MD PA

Practice address 1955 E Main St, Eagle Pass, TX, 78852

Phone (830) 773-7474

Fax (830) 872-2659

Enumeration date Feb 19, 2008

Last updated in NPPES Jan 14, 2009

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License H6735 (TX) Primary

Authorized official

Name Ruben De Los Santos

Title Physician

Phone (830) 773-7474

Other identifiers

Identifier	Type	State	Issuer
127850904	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

Where is Ruben De Los Santos MD PA located?

The practice location on file with NPPES is in Eagle Pass, TX.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2009-01-14. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-01-14.