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

Irene Walker Marquez-Biggs, MD

Individual provider Pediatrics Physician · NPI 1801842869

Irene Walker Marquez-Biggs, MD is a Pediatrics Physician in Phoenix, Arizona. Licensed in Arizona. Registered with an NPI since 2006.

Licensed in
AZ
In the registry since
2006
Specialties on file
2
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

350 W Thomas Rd
Phoenix, AZ 85013-4409
Phone: (602) 406-3000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 32570 (AZ)
Pediatrics Physician Taxonomy 208000000X · Licence 32570 (AZ)

Record details

NPI number1801842869
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 25, 2006
Last updated in NPPESJuly 13, 2026

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