NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Irene M Madriz, CRNA

Certified Registered Nurse Anesthetist in Houston, TX · enumerated 2005.

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

National Provider Identifier

1821083825

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Irene M Madriz
Credential CRNA
Sex Female
Practice address 8850 Long Point Rd, Houston, TX, 77055
Fax (713) 468-7370
Enumeration date Sep 15, 2005
Last updated in NPPES May 5, 2008

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 618209 (TX) Primary
CRNA · Certified Registered Nurse Anesthetist: An advanced practice nurse specializing in anesthesia care. About the CRNA credential

Other identifiers

Identifier Type State Issuer
050593 Other TX RECERTIFICATION AANA
81800U Other TX BLUE CROSS BLUE SHIELD
002976101 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 does Irene Madriz practice?
The practice location on file with NPPES is in Houston, TX. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Irene Madriz?
The National Provider Identifier (NPI) for Irene Madriz is 1821083825, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-05.