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MARGRETH ONYIUKE PMHNP-BC
NPI 1184339426
Nurse Practitioner - Psychiatric/Mental Health in Austin, TX

Active since January 20, 2023PECOS Enrolled
5900 BALCONES DR # 8920, AUSTIN, TX 78731(832) 734-5348(832) 346-5478 Get Directions Write a Review

NPPES record last updated: March 24, 2025. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Mar 24, 2025, Jan 30, 2023, Jan 20, 2023 (3 updates tracked since 2023).

About Margreth Onyiuke Pmhnp-bc NPPES

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

MARGRETH ONYIUKE PMHNP-BC (NPI 1184339426) is an individual psychiatric/mental health provider in Austin, Texas, licensed in New York (404669) and active in the NPI registry since January 2023. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1184339426
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameMARGRETH ONYIUKECredential: PMHNP-BC
Location Address5900 BALCONES DR # 8920Austin, TX 78731-4257
Mailing Address5900 Balcones Dr # 8920Austin, TX 78731-4257 · (832) 734-5348 · Fax (832) 346-5478
Phone(832) 734-5348
Fax(832) 346-5478
Sole ProprietorYes
Enumeration DateJanuary 20, 2023
Last NPPES UpdateMarch 24, 20253 updates tracked since enumeration
NPPES CertifiedMarch 24, 2025
✔ NPI 1184339426 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in NY · 404669
5900 BALCONES DR # 8920, Austin, TX 78731
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Antidote Health of TX, Blue Cross and Blue Shield of Texas, Florida Blue (BlueCross BlueShield FL) 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 (PECOS)

Margreth Onyiuke Pmhnp-bc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

5

Medicare enrollment records show Margreth Onyiuke reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Serenmind Psychiatry PLLC
Same address
Psychiatric/Mental Health
5900 BALCONES DR # 8920
Austin, TX 78731
  • Reassigned Medicare billing, Texas enrollment
NPI 1659194421 (832) 734-5348
Eleanor Health Professional Tx, PLLC
70 mi
Addiction Medicine
8500 VILLAGE DR STE 101
San Antonio, TX 78217
  • Reassigned Medicare billing, Texas enrollment
  • 38 clinicians in this Medicare group
NPI 1932854981 (726) 201-3047
Whole Mind Of Texas PLLC
149 mi
Psychiatry
1315 ST JOSEPH PKWY STE 1810
Houston, TX 77002
  • Reassigned Medicare billing, Texas enrollment
  • 2 clinicians in this Medicare group
NPI 1639057532 (801) 477-7189
Eleanor Health Professional Fl PLLC
934 mi
Psychiatry
4014 GUNN HWY STE 160
Tampa, FL 33618
  • Reassigned Medicare billing, Florida enrollment
  • 12 clinicians in this Medicare group
NPI 1144940735 (866) 402-7631
Grow Healthcare Group PA
1,116 mi
Mental Health
66 W FLAGLER ST STE 900
Miami, FL 33130
  • Reassigned Medicare billing, New York and Oregon enrollments
  • 867 clinicians in this Medicare group
NPI 1245845932 (786) 244-7711

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 78731 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
$89.03 typical visit price
range $57.88 – $174.00
Typical copayment $22.25 (range $14.47 – $43.50)
Most-billed visit code 99203
Established Patient
$101.65 typical visit price
range $18.88 – $142.23
Typical copayment $25.41 (range $4.72 – $35.55)
Most-billed visit code 99214
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

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

SERENMIND PSYCHIATRY PLLC
Nurse Practitioner (Psychiatric/Mental Health)
5900 BALCONES DR # 8920
AUSTIN, TX 78731
Travis County (832) 734-5348

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 Margreth Onyiuke's NPI number?

The NPI number for Margreth Onyiuke is 1184339426. It was assigned to this individual provider in the NPPES registry on January 20, 2023.

Where is Margreth Onyiuke located?

Margreth Onyiuke practices at 5900 Balcones Dr # 8920, Austin, TX 78731. The listed phone number is (832) 734-5348.

What is Margreth Onyiuke's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Margreth Onyiuke enrolled in Medicare?

Yes. Margreth Onyiuke is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Margreth Onyiuke's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Margreth Onyiuke reassigns Medicare benefits to 5 organizations: Serenmind Psychiatry PLLC (Austin, TX), Eleanor Health Professional Tx, PLLC (San Antonio, TX), Whole Mind Of Texas PLLC (Houston, TX), Eleanor Health Professional Fl PLLC (Tampa, FL) and Grow Healthcare Group PA (Miami, FL). 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 Margreth Onyiuke's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Margreth Onyiuke accept?

Health plans from Antidote Health of TX, Blue Cross and Blue Shield of Texas, Florida Blue (BlueCross BlueShield FL), Florida Blue HMO (a BlueCross BlueShield FL company) and Oscar Health and 1 other insurer list Margreth Onyiuke 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 Margreth Onyiuke was last updated on March 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.