Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Marcia Lea O'Brien, MSN, APRN, NP-C

Individual provider Family Nurse Practitioner · NPI 1053853176

Marcia Lea O'Brien, MSN, APRN, NP-C is a Nurse Practitioner in Austin, Texas. Qualified in 2016, 10 years ago. Accepts Medicare assignment. Licensed in Texas.

Years since qualifying
10
Licensed in
TX
In the registry since
2016
What do these letters mean?
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.
NP-C — Nurse Practitioner, Certified
A nurse practitioner certified by the AANP.

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Practice location Address checks out

1301 W 38th St Ste 200
Austin, TX 78705-1010
Phone: (512) 477-5905
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence AP131678 (TX)

Record details

NPI number1053853176
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSN , APRN , NP-C
Sole proprietorNo
NPI enumeratedNovember 7, 2016
Last updated in NPPESOctober 15, 2021
Certification dateOctober 15, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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