Registry record
- NPI
- 1053853176
- Profession
- Nurse Practitioner (NP)
- Specialty
- Family Nurse Practitioner (363LF0000X)
- Practice address
- 1301 W 38th St Ste 200
Austin, TX 78705 - Phone
- 5124775905
- In the registry since
- November 7, 2016
- Last NPPES update
- October 15, 2021
- Sole proprietor
- No
- License
- AP131678 (TX)
At this location
2 other providers in our data list 1301 W 38th St Ste 200, Austin as a practice address:
- Mrs. Alison Meredith Collins, P.A.
Physician Assistant · NPI 1194971465
- Andie Elisabeth Moczygemba, PA-C
Physician Assistant · NPI 1790247435
In context
The NPI number of Marcia O'Brien is 1053853176. They are a Family Nurse Practitioner in Austin, Texas.
Marcia O'Brien is one of 934 Family Nurse Practitioners in Austin and one of 22,499 across Texas in our data. Austin ranks #4 among Texas cities in our dataset, with 2,782 NP and PA providers.
The NPI has been in the federal registry for 9 years, since November 7, 2016.
Frequently asked questions
What is NPI 1053853176?
NPI 1053853176 is the 10-digit National Provider Identifier assigned to Marcia O'Brien, a Family Nurse Practitioner practicing in Austin, Texas. The record has been in the NPPES registry since November 7, 2016.
How do I verify this provider?
Cross-check NPI 1053853176 in the official CMS registry at npiregistry.cms.hhs.gov, and confirm license AP131678 with the TX licensing board. You can also run the number through our free NPI validator to confirm its checksum.
Is this information current?
This profile reflects the June 2026 NPPES data file. NPPES lists the record's last update as October 15, 2021. We refresh our data each month when CMS publishes a new file.
Data: NPPES public registry, June 2026 file. Not medical advice. Verify independently before care or credentialing decisions. Errors in the source record can be corrected at nppes.cms.hhs.gov; see our corrections page.