Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Irene M Madriz, CRNA

Individual provider Certified Registered Nurse Anesthetist · NPI 1821083825

Irene M Madriz, CRNA is registered under Certified Registered Nurse Anesthetist (CRNA) in Houston, Texas. Qualified in 1999, 27 years ago. Practices with Texans Anesthesia Associates PLLC, a 216-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
27
Licensed in
TX
In the registry since
2005
What do these letters mean?
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

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Practice location Address checks out

8850 Long Point Rd
Houston, TX 77055-3006 Not confirmed with CMS for 18 years — call before visiting
Phone: (713) 827-1820
Fax: (713) 468-7370
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence 618209 (TX)

Record details

NPI number1821083825
Entity typeIndividual (Type 1)
GenderFemale
Credentials CRNA
Sole proprietorNo
NPI enumeratedSeptember 15, 2005
Last updated in NPPESMay 5, 2008

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 1999 (27 years in practice)
Group practice Texans Anesthesia Associates Pllc — 216 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients77
Services billed 80 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Texans Anesthesia Associates PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 216 clinicians in the practice; 12 are shown here.

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