Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

MS. Margaret Elizabeth Villarreal, CRNA

Individual provider Certified Registered Nurse Anesthetist · NPI 1306822598

MS. Margaret Elizabeth Villarreal, CRNA is registered under Certified Registered Nurse Anesthetist (CRNA) in Dallas, Texas. Qualified in 2002, 24 years ago. Practices with Konen and Associates, PA, a 16-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
24
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.

See every abbreviation used in this directory →

Practice location Address checks out

13737 Noel Rd Ste 1400
Dallas, TX 75240-2004 Not confirmed with CMS for 12 years — call before visiting
Phone: (972) 715-5000
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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 644157 (TX)

Record details

NPI number1306822598
Entity typeIndividual (Type 1)
GenderFemale
Credentials CRNA
Sole proprietorNo
NPI enumeratedDecember 19, 2005
Last updated in NPPESMay 21, 2014

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2002 (24 years in practice)
Group practice Konen And Associates, P.A. — 16 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations7 on file with Medicare

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 patients100
Services billed 100 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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 Konen and Associates, PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 16 clinicians in the practice; 12 are shown here.

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