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

Dr. Rene Alberto Castillo, MD

Individual provider Hematology & Oncology Physician · NPI 1134186166

Dr. Rene Alberto Castillo, MD is a Medical Oncology in Austin, Texas. Qualified in 1987, 39 years ago. Practices with Texas Oncology PA, a 1,005-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Louisiana and Texas.

Years since qualifying
39
Licensed in
LA, TX
In the registry since
2006
Specialties on file
3
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

4101 James Casey St Ste 100
Austin, TX 78745-1145
Phone: (512) 447-2202
Fax: (512) 447-5337
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence M3964 (TX)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence MD.12610R (LA)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence M3964 (TX)

Record details

NPI number1134186166
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 26, 2006
Last updated in NPPESFebruary 10, 2023
Certification dateFebruary 2, 2023

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Medical schoolOTHER
Graduated 1987 (39 years in practice)
Group practice Texas Oncology Pa — 1005 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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