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OLGA MCMAHAN
NPI 1912872672
Nurse Practitioner - Psychiatric/Mental Health in Round Rock, TX

Active since October 10, 2025PECOS EnrolledAccepts Medicare Assignment
230 DEER RIDGE DR, ROUND ROCK, TX 78681(512) 766-1400(512) 309-1342 Get Directions Write a Review

NPPES record last updated: May 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 13, 2026, Oct 10, 2025 (2 updates tracked since 2025).

About Olga Mcmahan NPPES

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

OLGA MCMAHAN (NPI 1912872672) is an individual psychiatric/mental health provider in Round Rock, Texas, licensed in Texas (1215352) and active in the NPI registry since October 2025. The provider is enrolled in Medicare PECOS and is a graduate of Other (2025).

NPPES Registry Identity

NPI1912872672
Entity TypeIndividual
Primary Taxonomy363LP0808X
Provider Legal NameOLGA MCMAHAN
Location Address230 DEER RIDGE DRRound Rock, TX 78681-5515
Mailing Address230 Deer Ridge DrRound Rock, TX 78681-5515 · (512) 766-1400 · Fax (512) 309-1342
Phone(512) 766-1400
Fax(512) 309-1342
Sole ProprietorYes
Medical School CMSOtherGraduated 2025
Enumeration DateOctober 10, 2025
Last NPPES UpdateMay 13, 20262 updates tracked since enumeration
NPPES CertifiedMay 13, 2026
✔ NPI 1912872672 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 TX · 1215352
230 DEER RIDGE DR, Round Rock, TX 78681
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Olga Mcmahan 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 ID8729566948
PECOS Enrollment IDI20260129002730
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78681 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
$84.92 typical visit price
range $54.84 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
Established Patient
$97.05 typical visit price
range $17.52 – $136.11
Typical copayment $24.26 (range $4.38 – $34.02)
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 7

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

FAMILY IMAGING SERVICES
Clinic/Center (Magnetic Resonance Imaging (MRI))
230 DEER RIDGE DR
ROUND ROCK, TX 78681
Williamson County (512) 766-1400
BRUSHY CREEK EMERGENCY PHYSICIANS PLLC
Emergency Medicine
230 DEER RIDGE DR
ROUND ROCK, TX 78681
Williamson County (512) 766-1400
DR. BOBBY JOHNSON JR. DO
Emergency Medicine
230 DEER RIDGE DR
ROUND ROCK, TX 78681
Williamson County (512) 766-1400
BRUSHY CREEK FAMILY HOSPITAL, LLC
General Acute Care Hospital
230 DEER RIDGE DR
ROUND ROCK, TX 78681
Williamson County (512) 766-1400
ANN H LIEBBE APRN
Nurse Practitioner (Family)
230 DEER RIDGE DR
ROUND ROCK, TX 78681
Williamson County (512) 766-1400
MYRNA CRYSTAL VILLALBA APRN-CNP
Nurse Practitioner (Family)
230 DEER RIDGE DR
ROUND ROCK, TX 78681
Williamson County (512) 766-1400
PATIENT FIRST IMAGING, LLC
Clinic/Center (Radiology)
230 DEER RIDGE DR
ROUND ROCK, TX 78681
Williamson County (512) 766-1400

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 Olga Mcmahan's NPI number?

The NPI number for Olga Mcmahan is 1912872672. It was assigned to this individual provider in the NPPES registry on October 10, 2025.

Where is Olga Mcmahan located?

Olga Mcmahan practices at 230 Deer Ridge Dr, Round Rock, TX 78681. The listed phone number is (512) 766-1400.

What is Olga Mcmahan's specialty?

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

Is Olga Mcmahan enrolled in Medicare?

Yes. Olga Mcmahan 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.

When was this NPI record last updated?

The NPPES record for Olga Mcmahan was last updated on May 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.