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

Katharine A Castillo, NP

Individual provider Family Nurse Practitioner · NPI 1912435009

Katharine A Castillo, NP is a Nurse Practitioner in Tucson, Arizona. Qualified in 2017, 9 years ago. Practices with Tucson Physician Group Holdings LLC, a 199-clinician group and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
9
Licensed in
AZ
In the registry since
2017
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

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Practice location Address checks out

551 W Magee Rd
Tucson, AZ 85704-6439
Phone: (520) 488-6467
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence AP10184 (AZ)

Record details

NPI number1912435009
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedJune 1, 2017
Last updated in NPPESNovember 25, 2025
Certification dateNovember 25, 2025

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Tucson Physician Group Holdings Llc — 199 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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