Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Prof. Juliann Garza Castillo, PHD, PA-C

Individual provider Physician Assistant · NPI 1396103909

Prof. Juliann Garza Castillo, PHD, PA-C is a Physician Assistant in McAllen, Texas. Qualified in 1999, 27 years ago. Practices with Jose E Igoa MD PA, a 5-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Texas.

Years since qualifying
27
Licensed in
TX
In the registry since
2016
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

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Practice location Address checks out

3600 N 23rd St Ste 103
McAllen, TX 78501-6081
Phone: (956) 682-4401
Fax: (956) 664-9081
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence PA03496 (TX)

Record details

NPI number1396103909
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD , PA-C
Sole proprietorYes
NPI enumeratedFebruary 10, 2016
Last updated in NPPESMarch 20, 2024
Certification dateMarch 20, 2024

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 1999 (27 years in practice)
Group practice Jose E Igoa Md Pa — 5 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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