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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JUSTIN MARSHALL O'BRIEN MD
NPI 1306423017
Psychiatry & Neurology - Psychiatry in Lubbock, TX

Active since March 27, 2021PECOS EnrolledAccepts Medicare Assignment
3223 S LOOP 289 STE 600, LUBBOCK, TX 79423(833) 351-8255 Get Directions Write a Review

NPPES record last updated: August 26, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 26, 2026, Dec 4, 2025, Mar 27, 2021 (3 updates tracked since 2021).

About Justin Marshall O'brien Md NPPES

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

JUSTIN MARSHALL O'BRIEN MD (NPI 1306423017) is an individual psychiatry provider in Lubbock, Texas, licensed in Texas (U3969) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, maintains a secondary practice location in Cary, and is a graduate of University Of Texas Southwestern Medical School At Dallas (2021).

NPPES Registry Identity

NPI1306423017
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameJUSTIN MARSHALL O'BRIENCredential: MD
Location Address3223 S LOOP 289 STE 600Lubbock, TX 79423-1372
Mailing Address3223 S Loop 289 Ste 600Lubbock, TX 79423-1372 · (833) 351-8255
Phone(833) 351-8255
Sole ProprietorNo
Medical School CMSUniversity Of Texas Southwestern Medical School At DallasGraduated 2021
Enumeration DateMarch 27, 2021
Last NPPES UpdateAugust 26, 20263 updates tracked since enumeration
NPPES CertifiedAugust 26, 2026
✔ NPI 1306423017 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in TX · U3969
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
3223 S LOOP 289 STE 600, Lubbock, TX 79423
Open in Google Maps ↗

Secondary Practice Location 1

Location 115000 Weston PkwyCary, NC 27513-2118 · Phone (833) 351-8255

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Cigna Healthcare, Imperial Insurance Companies, Inc. and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Justin Marshall O'brien Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7214440742
PECOS Enrollment IDI20250627003913
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Justin O'brien reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Iconiq Spine & Orthopaedic Center PLLC
286 mi
Interventional Pain Medicine
4441 W AIRPORT FWY STE 215
Irving, TX 75062
  • Reassigned Medicare billing, Texas enrollment
  • 5 clinicians in this Medicare group
NPI 1578279238 (469) 444-7246
Southtown Psychiatry PLLC
342 mi
Psychiatry
909 NE LOOP 410 STE 600
San Antonio, TX 78209
  • Reassigned Medicare billing, Texas enrollment
  • 37 clinicians in this Medicare group
NPI 1457167702 (210) 343-5121

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 79423 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$166.88 typical visit price
range $54.84 – $166.88
Typical copayment $41.72 (range $13.71 – $41.72)
Most-billed visit code 99205
Established Patient
$68.55 typical visit price
range $17.52 – $136.11
Typical copayment $17.13 (range $4.38 – $34.02)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BRENDALYN IWEH MD
Psychiatry & Neurology (Psychiatry)
3223 S LOOP 289 STE 600
LUBBOCK, TX 79423
Lubbock County (833) 351-8255
MATTHEW BRANDON KELLY MD
Psychiatry & Neurology (Psychiatry)
3223 S LOOP 289 STE 600
LUBBOCK, TX 79423
Lubbock County (833) 351-8255
STEPHANE LOUIS LMFT
Marriage & Family Therapist
3223 S LOOP 289 STE 600
LUBBOCK, TX 79423
Lubbock County (833) 351-8255
DR. KERI LEE LEMMOND MD
Psychiatry & Neurology (Psychiatry)
3223 S LOOP 289 STE 600
LUBBOCK, TX 79423
Lubbock County (833) 351-8255
DR. SARAH K. GUZMAN M.D.
Psychiatry & Neurology (Psychiatry)
3223 S LOOP 289 STE 600
LUBBOCK, TX 79423
Lubbock County (833) 351-8255
DR. JENNIFER LEE HAILEY D.O.
Psychiatry & Neurology (Psychiatry)
3223 S LOOP 289 STE 600
LUBBOCK, TX 79423
Lubbock County (833) 351-8255
RYAN RASMUS HARRIS M.D.
Psychiatry & Neurology (Psychiatry)
3223 S LOOP 289 STE 600
LUBBOCK, TX 79423
Lubbock County (833) 351-8255
AUSTIN LIN M.D.
Psychiatry & Neurology (Psychiatry)
3223 S LOOP 289 STE 600
LUBBOCK, TX 79423
Lubbock County (833) 351-8255

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 Justin O'brien's NPI number?

The NPI number for Justin O'brien is 1306423017. It was assigned to this individual provider in the NPPES registry on March 27, 2021.

Where is Justin O'brien located?

Justin O'brien practices at 3223 S Loop 289 Ste 600, Lubbock, TX 79423. The listed phone number is (833) 351-8255.

What is Justin O'brien's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Justin O'brien enrolled in Medicare?

Yes. Justin O'brien is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Justin O'brien's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Justin O'brien reassigns Medicare benefits to 2 organizations: Iconiq Spine & Orthopaedic Center PLLC (Irving, TX) and Southtown Psychiatry PLLC (San Antonio, TX). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Justin O'brien's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Justin O'brien accept?

Health plans from Blue Cross and Blue Shield of Texas, Cigna Healthcare, Imperial Insurance Companies, Inc. and UnitedHealthcare list Justin O'brien as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Justin O'brien was last updated on August 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 54 days 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.