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

Justin Marshall O'Brien, MD

Individual provider Psychiatry Physician · NPI 1306423017

Justin Marshall O'Brien, MD is a Psychiatry in Irving, Texas. Qualified in 2021, 5 years ago. Practices with Iconiq Spine and Orthopaedic Center, PLLC, a 6-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
5
Licensed in
TX
In the registry since
2021
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

4441 W Airport Fwy Ste 215
Irving, TX 75062-5959
Phone: (469) 913-6136
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence U3969 (TX)

Record details

NPI number1306423017
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 27, 2021
Last updated in NPPESDecember 4, 2025
Certification dateDecember 4, 2025

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolOTHER
Graduated 2021 (5 years in practice)
Group practice Iconiq Spine And Orthopaedic Center, Pllc — 6 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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