DR. OLIVER EZEKIEL AREGULLIN MD
NPI 1275882599
Internal Medicine - Interventional Cardiology in Austin, TX

Q: What is Oliver Aregullin's NPI number?

The NPI number for Oliver Aregullin is 1275882599. It was assigned to this individual provider in the NPPES registry on August 31, 2012. The provider is also known as Dr. Oliver Ezekiel Aregullin MD.

Q: What is Oliver Aregullin's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Q: When was this NPI record last updated?

The NPPES record for Oliver Aregullin was last updated on December 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since August 31, 2012PECOS EnrolledAccepts Medicare Assignment

100/100

CMS Quality Rating

9835 N LAKE CREEK PKWY, AUSTIN, TX 78717(737) 229-3500 Get Directions Write a Review

NPPES record last updated: December 29, 2025. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Dec 29, 2025, May 20, 2025, Dec 2, 2024 and 7 more (10 updates tracked since 2017).

On this page

About Dr. Oliver Ezekiel Aregullin Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. OLIVER EZEKIEL AREGULLIN MD (NPI 1275882599) is an individual interventional cardiology provider in Austin, Texas, licensed in Texas (U8939) and active in the NPI registry since August 2012. He is enrolled in Medicare PECOS, maintains a secondary practice location in San Antonio, and is a graduate of Other (2004).

NPPES Registry Identity

NPI1275882599

Entity TypeIndividualMale

Primary Taxonomy207RI0011X

Provider Legal NameDR. OLIVER EZEKIEL AREGULLINCredential: MD

Location Address9835 N LAKE CREEK PKWYAustin, TX 78717-6210

Mailing Address100 Michigan St Ne # Mc845Grand Rapids, MI 49503-2560

Phone(737) 229-3500

Sole ProprietorNo

Medical School CMSOtherGraduated 2004

Enumeration DateAugust 31, 2012

Last NPPES UpdateDecember 29, 202510 updates tracked since enumeration

NPPES CertifiedDecember 29, 2025

✔ NPI 1275882599 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal Medicine · Interventional CardiologyAllopathic & Osteopathic Physicians

Taxonomy Code207RI0011X

Licenses✔ Licensed in TX · U8939✔ Licensed in MI · 4301112330

Definition

An area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical procedures and medications to treat abnormalities that impair the function of the cardiovascular system.

Also ListedInternal Medicine · Adult Congenital Heart DiseaseTaxonomy 207RA0002X · License 4301112330 (MI)

Also ListedPediatricsTaxonomy 208000000X · License 110254 (FL)

Also ListedPediatrics · Pediatric CardiologyTaxonomy 2080P0202X · License U8939 (TX), 4301112330 (MI)

9835 N LAKE CREEK PKWY, Austin, TX 78717

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Other Names 1

Other Name (5)Dr. Oliver Ezekiel Aregullin Md

Secondary Practice Location 1

Location 1333 N Santa Rosa Ste 900San Antonio, TX 78207-3108 · Phone (210) 704-8829 · Fax (000) 000-0002

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Oliver Ezekiel Aregullin Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4789953688

PECOS Enrollment IDI20240216000980

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78717 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$126.40 typical visit price

range $54.84 – $166.88

Typical copayment $31.60 (range $13.71 – $41.72)

Most-billed visit code 99204

Established Patient

$97.05 typical visit price

range $17.52 – $136.11

Typical copayment $24.26 (range $4.38 – $34.02)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

100/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

87.54

Promoting Interoperability

100

Improvement Activities

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. ANUSHA CHINTHAPARTHI MD

Pediatrics (Neonatal-Perinatal Medicine)