Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

WILLIAM E MCCARRON MD
NPI 1063413953
Internal Medicine - Cardiovascular Disease in Austin, TX

Q: What is William Mccarron's NPI number?

The NPI number for William Mccarron is 1063413953. It was assigned to this individual provider in the NPPES registry on August 2, 2005.

Q: What is William Mccarron's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Q: When was this NPI record last updated?

The NPPES record for William Mccarron was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 days 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 02, 2005

3801 N LAMAR BLVD, STE 300, AUSTIN HEART PA, AUSTIN, TX 78756(512) 206-3600(512) 454-2581 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About William E Mccarron Md NPPES

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

WILLIAM E MCCARRON MD (NPI 1063413953) is an individual cardiovascular disease provider in Austin, Texas, licensed in Texas (D4218) and active in the NPI registry since August 2005.

NPPES Registry Identity

NPI1063413953

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameWILLIAM E MCCARRONCredential: MD

Location Address3801 N LAMAR BLVD, STE 300, AUSTIN HEART PAAustin, TX 78756-4080

Mailing AddressPo Box 4189, Austin HeartAustin, TX 78765-4189 · (512) 206-4300 · Fax (512) 206-4350

Phone(512) 206-3600

Fax(512) 454-2581

Sole ProprietorNo

Enumeration DateAugust 2, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1063413953 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RC0000X

License✔ Licensed in TX · D4218

Definition

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

3801 N LAMAR BLVD, Austin, TX 78756

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Other Identifiers 6

Other048109Great West

Other78756-A018Champus / Tricare

Other122435Usa Managed Care

Other4126287Aetna / Trs

Other829045TX · Bc / Bs

Other56082TX · First Health

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.

TODD PARICIO M.D

Anesthesiology

3801 N LAMAR BLVD
AUSTIN, TX 78756

Travis County (512) 407-8444

ARTHUR M SMITH MD

Internal Medicine (Interventional Cardiology)

3801 N LAMAR BLVD, STE 300
AUSTIN, TX 78756

Travis County (512) 206-3600

DR. SARAH KAITLYN MONTGOMERY

Nurse Practitioner (Family)

3801 N LAMAR BLVD
AUSTIN, TX 78756

Travis County (512) 407-8258

ERIN NEAL FNP

Nurse Practitioner (Family)

3801 N LAMAR BLVD, STE 300
AUSTIN, TX 78756

Travis County (512) 206-3600

PATRICIA BRITT ACNS-BC

Clinical Nurse Specialist (Adult Health)

3801 N LAMAR BLVD, SUITE 300
AUSTIN, TX 78756

Travis County (512) 206-3600

MRS. NANCY SUSAN ROSE CNS

Clinical Nurse Specialist (Adult Health)

3801 N LAMAR BLVD, STE. 300
AUSTIN, TX 78756

Travis County (512) 206-3601

NEHAL DOSHI RANA M.D.

Internal Medicine

3801 N LAMAR BLVD
AUSTIN, TX 78756

Travis County (512) 407-7000

NICOLE L ATACK CRNA

Nurse Anesthetist, Certified Registered

3801 N LAMAR BLVD
AUSTIN, TX 78756

Travis County (512) 558-1443

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Mccarron's NPI number?

The NPI number for William Mccarron is 1063413953. It was assigned to this individual provider in the NPPES registry on August 2, 2005.

Where is William Mccarron located?

William Mccarron practices at 3801 N Lamar Blvd Ste 300, Austin Heart PA, Austin, TX 78756. The listed phone number is (512) 206-3600.

What is William Mccarron's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

When was this NPI record last updated?

The NPPES record for William Mccarron was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 days 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.