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

Margaret Melissa Loayza, CRNA

Individual provider Certified Registered Nurse Anesthetist · NPI 1508272709

Margaret Melissa Loayza, CRNA is a Certified Registered Nurse Anesthetist (CRNA) in Dallas, Texas. Graduated from Louisiana State University School of Medicine in Shreveport in 2014, 12 years ago. Practices with University of Texas Southwestern Medical Center at Dallas, a 3,149-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
12
Trained at
Louisiana State University School of Medicine in Shreveport
Licensed in
TX
In the registry since
2014
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

5323 Harry Hines Blvd
Dallas, TX 75390-7208
Phone: (214) 645-0624
Fax: (214) 645-0078
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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 854855 (TX)

Record details

NPI number1508272709
Entity typeIndividual (Type 1)
GenderFemale
Credentials CRNA
Sole proprietorNo
NPI enumeratedJuly 8, 2014
Last updated in NPPESJuly 8, 2014

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolLOUISIANA STATE UNIVERSITY SCHOOL OF MEDICINE IN SHREVEPORT
Graduated 2014 (12 years in practice)
Group practice University Of Texas Southwestern Medical Center At Dallas — 3149 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

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