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

Individual provider Pediatrics Physician · NPI 1275882599

Dr. Oliver Ezekiel Aregullin, MD is a Pediatric Medicine in Austin, Texas. Qualified in 2004, 22 years ago. Practices with Texas Childrens Physician Group, a 655-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Florida, Michigan and Texas.

Years since qualifying
22
Licensed in
FL, MI, TX
In the registry since
2012
Specialties on file
6
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

9835 N Lake Creek Pkwy
Austin, TX 78717-6210
Phone: (737) 229-3500
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 333 N Santa Rosa Ste 900, San Antonio, TX 78207-3108 — (210) 704-8829

Specialties & licences

Interventional Cardiology Physician (primary) Taxonomy 207RI0011X · Licence U8939 (TX)
Pediatrics Physician Taxonomy 208000000X · Licence 110254 (FL)
Adult Congenital Heart Disease Physician Taxonomy 207RA0002X · Licence 4301112330 (MI)
Pediatric Cardiology Physician Taxonomy 2080P0202X · Licence U8939 (TX)
Pediatric Cardiology Physician Taxonomy 2080P0202X · Licence 4301112330 (MI)
Interventional Cardiology Physician Taxonomy 207RI0011X · Licence 4301112330 (MI)

Record details

NPI number1275882599
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 31, 2012
Last updated in NPPESDecember 29, 2025
Certification dateDecember 29, 2025

Medicare enrollment

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

Medicare specialtyPEDIATRIC MEDICINE
Also practisesCARDIOVASCULAR DISEASE (CARDIOLOGY), INTERNAL MEDICINE, INTERVENTIONAL CARDIOLOGY
Medical schoolOTHER
Graduated 2004 (22 years in practice)
Group practice Texas Childrens Physician Group — 655 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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