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LAUREN W OBRIEN CRNA
NPI 1124909668
Nurse Anesthetist, Certified Registered in Corpus Christi, TX

Active since September 10, 2025Accepts Medicare Assignment
600 ELIZABETH ST, CORPUS CHRISTI, TX 78404(361) 881-3000 Get Directions Write a Review

NPPES record last updated: October 7, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 7, 2025, Sep 10, 2025 (2 updates tracked since 2025).

About Lauren W Obrien Crna NPPES

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

LAUREN W OBRIEN CRNA (NPI 1124909668) is an individual nurse anesthetist, certified registered in Corpus Christi, Texas, licensed in Texas (1125882) and active in the NPI registry since September 2025. She is a graduate of Other (2025).

NPPES Registry Identity

NPI1124909668
Entity TypeIndividualFemale
Primary Taxonomy367500000X
Provider Legal NameLAUREN W OBRIENCredential: CRNA
Location Address600 ELIZABETH STCorpus Christi, TX 78404-2235
Mailing Address9626 Wilkins DrCorpus Christi, TX 78410-1534 · (661) 557-5310
Phone(361) 881-3000
Sole ProprietorYes
Medical School CMSOtherGraduated 2025
Enumeration DateSeptember 10, 2025
Last NPPES UpdateOctober 7, 20252 updates tracked since enumeration
NPPES CertifiedOctober 7, 2025
✔ NPI 1124909668 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367500000X
License✔ Licensed in TX · 1125882
Definition
(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.
Also ListedRegistered NurseTaxonomy 163W00000X · License 1125882 (TX)
600 ELIZABETH ST, Corpus Christi, TX 78404
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas.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

Lauren W Obrien Crna 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 ID4284110669
PECOS Enrollment IDI20260115002655

Medicare Billing Reassignments

2

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

Vanguard Anesthesia Solutions, PLLC
33 mi
Nurse Anesthetist, Certified Registered
5959 S STAPLES ST STE 100
Corpus Christi, TX 78413
  • Reassigned Medicare billing, Texas enrollment
  • 15 clinicians in this Medicare group
NPI 1447134358 (972) 991-9950
Emergenchealth PLLC
358 mi
Anesthesiology
4100 INTERNATIONAL PLZ STE 800
Fort Worth, TX 76109
  • Reassigned Medicare billing, Texas enrollment
  • 1,612 clinicians in this Medicare group
NPI 1467970897 (972) 861-1270

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 78404 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
$126.40 typical visit price
range $54.84 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
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.

MANU M BHATTATIRY MD
Radiology (Diagnostic Radiology)
600 ELIZABETH ST
CORPUS CHRISTI, TX 78404
Nueces County (361) 881-3151
DR. FRANCES MARIE STOKES ACNP-APN
Nurse Practitioner (Acute Care)
600 ELIZABETH ST
CORPUS CHRISTI, TX 78404
Nueces County (361) 881-3000
CONNER EMERGENCY MEDICINE ASSOCIATES, PA
Emergency Medicine
600 ELIZABETH ST
CORPUS CHRISTI, TX 78404
Nueces County (361) 881-3000
DELMAR EMERGENCY PHYSICIANS, LLP
Emergency Medicine
600 ELIZABETH ST
CORPUS CHRISTI, TX 78404
Nueces County (361) 881-3000
DR. JACQUELINE ISABELLA HARLE DO
Student in an Organized Health Care Education/Training Program
600 ELIZABETH ST
CORPUS CHRISTI, TX 78404
Nueces County (361) 881-3000
ADVANCED MEDICAL CARE P.A.
Internal Medicine
600 ELIZABETH ST
CORPUS CHRISTI, TX 78404
Nueces County (361) 881-3000
KENT DAUSSIN OTR
Occupational Therapist
600 ELIZABETH ST
CORPUS CHRISTI, TX 78404
Nueces County (361) 881-3000
ASHLEY RIESBERG
Nurse Anesthetist, Certified Registered
600 ELIZABETH ST
CORPUS CHRISTI, TX 78404
Nueces County (361) 881-3151

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 Lauren Obrien's NPI number?

The NPI number for Lauren Obrien is 1124909668. It was assigned to this individual provider in the NPPES registry on September 10, 2025.

Where is Lauren Obrien located?

Lauren Obrien practices at 600 Elizabeth St, Corpus Christi, TX 78404. The listed phone number is (361) 881-3000.

What is Lauren Obrien's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Is Lauren Obrien enrolled in Medicare?

Yes. Lauren Obrien 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 Lauren Obrien's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lauren Obrien reassigns Medicare benefits to 2 organizations: Vanguard Anesthesia Solutions, PLLC (Corpus Christi, TX) and Emergenchealth PLLC (Fort Worth, 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 Lauren Obrien's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Lauren Obrien accept?

Health plans from Blue Cross and Blue Shield of Texas list Lauren Obrien 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 Lauren Obrien was last updated on October 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.