DR. MICHAEL T O'BRIEN M.D.
NPI 1649502675
Specialist in West Lake Hills, TX

Q: What is Michael O'brien's NPI number?

The NPI number for Michael O'brien is 1649502675. It was assigned to this individual provider in the NPPES registry on February 1, 2010.

Q: What is Michael O'brien's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Q: When was this NPI record last updated?

The NPPES record for Michael O'brien was last updated on February 1, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years 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 February 01, 2010

1500 WILD CAT HOLW, WEST LAKE HILLS, TX 78746(512) 327-2296(512) 327-2296 Get Directions Write a Review

NPPES record last updated: February 1, 2010. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. Michael T O'brien M.d. NPPES

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

DR. MICHAEL T O'BRIEN M.D. (NPI 1649502675) is an individual specialist in West Lake Hills, Texas, licensed in Texas (D6511) and active in the NPI registry since February 2010.

NPPES Registry Identity

NPI1649502675

Entity TypeIndividualMale

Primary Taxonomy174400000X

Provider Legal NameDR. MICHAEL T O'BRIENCredential: M.D.

Location Address1500 WILD CAT HOLWWest Lake Hills, TX 78746-3659

Mailing Address1500 Wild Cat HolwWest Lake Hills, TX 78746-3659 · (512) 327-2296 · Fax (512) 327-2296

Phone(512) 327-2296

Fax(512) 327-2296

Sole ProprietorYes

Enumeration DateFebruary 1, 2010

✔ NPI 1649502675 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers

Taxonomy Code174400000X

License✔ Licensed in TX · D6511

Definition

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

1500 WILD CAT HOLW, West Lake Hills, TX 78746

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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 Michael O'brien's NPI number?

The NPI number for Michael O'brien is 1649502675. It was assigned to this individual provider in the NPPES registry on February 1, 2010.

Where is Michael O'brien located?

Michael O'brien practices at 1500 Wild Cat Holw, West Lake Hills, TX 78746. The listed phone number is (512) 327-2296.

What is Michael O'brien's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

When was this NPI record last updated?

The NPPES record for Michael O'brien was last updated on February 1, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years 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.