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

Myrna Ayde Castelazo, MD

Individual provider Diagnostic Radiology Physician · NPI 1407290513

Myrna Ayde Castelazo, MD is a Diagnostic Radiology in Pleasanton, California. Graduated from University of Texas Southwestern Medical School at Dallas in 2013, 13 years ago. Practices with Southwest Medical Imaging PA, a 17-clinician group, works from 6 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
13
Trained at
University of Texas Southwestern Medical School at Dallas
Licensed in
CA
In the registry since
2013
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

5555 W Las Positas Blvd
Pleasanton, CA 94588-4000
Phone: (925) 416-6789
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (5)

  • 798 S Winchester Blvd, San Jose, CA 95128-2928 — (408) 984-7226
  • 400 W Pueblo St, Santa Barbara, CA 93105-4353 — (805) 569-7279
  • 1500 S Main St, Ft Worth, TX 76104-4917 — (979) 218-4510
  • 1500 S Main St, Ft Worth, TX 76104 — (979) 218-4510
  • 1500 S Main St, Ft Worth, TX 76104-4917 — (979) 218-4510

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence A133913 (CA)

Record details

NPI number1407290513
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 19, 2013
Last updated in NPPESMay 12, 2025
Certification dateMay 12, 2025

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolUNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL SCHOOL AT DALLAS
Graduated 2013 (13 years in practice)
Group practice Southwest Medical Imaging Pa — 17 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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