Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Irma Elena Montemayor, M.D.

General Practice Physician in Del Rio, TX · enumerated 2006 · practices at Northside Health Clinic.

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

National Provider Identifier

1386704054

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Registry record

Entity type Individual (Type 1)

Name Dr. Irma Elena Montemayor

Credential M.D.

Sex Female

Practice address 106 Foster Dr, Del Rio, TX, 78840

Phone (830) 778-8442

Fax (830) 778-8321

Enumeration date Dec 11, 2006

Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License K2539 (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
80511Y	Other	TX	BLUE CROSS BLUE SHIELDS #

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 Irma Montemayor?

The National Provider Identifier (NPI) for Irma Montemayor is 1386704054, a Type 1 (individual) record in the CMS NPPES registry.

Where does Irma Montemayor practice?

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

Other providers at this practice address

Browse all →

Northside Health Clinic Internal Medicine Physician · Del Rio, TX NPI 1144353772

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.