What is Robert Obrien's NPI number?

Robert Obrien's National Provider Identifier (NPI) is 1003043027, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Robert Obrien's specialty?

Robert Obrien is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Robert Obrien located?

Robert Obrien's practice location on file with NPPES is 4316 James Casey St, Austin, TX 78745-1116.

What is Robert Obrien's phone number?

The practice phone number listed in the NPPES registry for Robert Obrien is (512) 791-7555.

Does Robert Obrien accept Medicare?

Robert Obrien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Robert Obrien's NPI active?

Yes — Robert Obrien's NPI (1003043027) is active in the NPPES registry as of the last update on 2009-06-17.

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Robert Obrien, M.D.

NPI 1003043027 · Family Medicine Physician · Austin, TX

Robert Obrien, M.D. is a Family Medicine Physician provider in Austin, TX (NPI 1003043027).

Provider details

NPI number: 1003043027
Entity type: Individual
Primary specialty: Family Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: Yes
License: J2712 (TX)

Practice location

4316 James Casey St

Bldg F200

Austin, TX 78745-1116

Phone: (512) 791-7555

Street-level locationGet directions

More TX providers

Mailing address

4316 James Casey St

Austin, TX 78745-1116

Specialties & taxonomies

Family Medicine PhysicianPrimary207Q00000XLicense J2712 (TX)
Allopathic & Osteopathic Physicians

Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(86/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
17 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Enumerated: 2009-06-17
Last updated: 2009-06-17

Frequently asked questions

What is Robert Obrien's NPI number?: Robert Obrien's National Provider Identifier (NPI) is 1003043027, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Robert Obrien's specialty?: Robert Obrien is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
Where is Robert Obrien located?: Robert Obrien's practice location on file with NPPES is 4316 James Casey St, Austin, TX 78745-1116.
What is Robert Obrien's phone number?: The practice phone number listed in the NPPES registry for Robert Obrien is (512) 791-7555.
Does Robert Obrien accept Medicare?: Robert Obrien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Robert Obrien's NPI active?: Yes — Robert Obrien's NPI (1003043027) is active in the NPPES registry as of the last update on 2009-06-17.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions