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MRS. KATHLEEN ANNE O'BRIEN ANP-C, FNP-C, GNP-C
NPI 1225044407
Nurse Practitioner - Family in Horseshoe Bay, TX

Active since July 31, 2006PECOS EnrolledAccepts Medicare Assignment
100 PECAN CROSSING DR, HORSESHOE BAY, TX 78657(830) 596-6900(830) 596-6901 Get Directions Write a Review

NPPES record last updated: December 4, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mrs. Kathleen Anne O'brien Anp-c, Fnp-c, Gnp-c NPPES

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

MRS. KATHLEEN ANNE O'BRIEN ANP-C, FNP-C, GNP-C (NPI 1225044407) is an individual family provider in Horseshoe Bay, Texas, licensed in Texas (AP110316) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, is affiliated with Baylor Scott & White Medical Center - Temple, and maintains a secondary practice location in Houston.

NPPES Registry Identity

NPI1225044407
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMRS. KATHLEEN ANNE O'BRIENCredential: ANP-C, FNP-C, GNP-C
Location Address100 PECAN CROSSING DRHorseshoe Bay, TX 78657-6097
Mailing AddressPo Box 844658Dallas, TX 75284-4658 · (800) 994-0371 · Fax (254) 215-9722
Phone(830) 596-6900
Fax(830) 596-6901
Sole ProprietorYes
Medical School CMSOtherGraduated 2000
Enumeration DateJuly 31, 2006
Last NPPES UpdateDecember 4, 2025
NPPES CertifiedDecember 4, 2025
✔ NPI 1225044407 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in TX · AP110316
Also ListedNurse Practitioner · Adult HealthTaxonomy 363LA2200X · License AP110316 (TX)
Also ListedNurse Practitioner · GerontologyTaxonomy 363LG0600X · License AP110316 (TX)
100 PECAN CROSSING DR, Horseshoe Bay, TX 78657
Open in Google Maps ↗

Secondary Practice Location 1

Location 113107 Lima DrHouston, TX 77099-1126 · Phone (281) 498-3313

Other Identifiers 1

MedicaidP085N6092TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.Insurance ›

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

Mrs. Kathleen Anne O'brien Anp-c, Fnp-c, Gnp-c 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 ID9436156155
PECOS Enrollment IDI20061023000089
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.

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Baylor Scott & White Medical Center - Temple

Acute Care Hospitals · Temple, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450054
Location2401 S 31st StTemple, TX 76508 · Bell County
Emergency services Birthing friendly

Baylor Scott & White Medical Center - Marble Falls

Acute Care Hospitals · Marble Falls, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number670108
Location810 W Highway 71Marble Falls, TX 78654 · Burnet County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78657 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.

SRIVIDYA VENIGALLA MD
Internal Medicine
100 PECAN CROSSING DR
HORSESHOE BAY, TX 78657
Burnet County (254) 724-2111
DR. MEREDITH RAE BURKHART APRN
Nurse Practitioner (Family)
100 PECAN CROSSING DR
HORSESHOE BAY, TX 78657
Burnet County (830) 596-6900
HUNTER CHEVELLE JOHNSON APP
Nurse Practitioner (Family)
100 PECAN CROSSING DR
HORSESHOE BAY, TX 78657
Burnet County (830) 596-6800
LAURA SALAZAR M.D.
Internal Medicine
100 PECAN CROSSING DR
HORSESHOE BAY, TX 78657
Burnet County (830) 598-4405
RAVI NARAYANA CHAVALI MD
Internal Medicine
100 PECAN CROSSING DR
HORSESHOE BAY, TX 78657
Burnet County (830) 596-6900
ROSEMARY GINA FARRELL PA-C
Physician Assistant
100 PECAN CROSSING DR
HORSESHOE BAY, TX 78657
Burnet County (830) 596-6900
MARTI LYNN RACETTE MS, APRN, FNP-C
Nurse Practitioner (Family)
100 PECAN CROSSING DR
HORSESHOE BAY, TX 78657
Burnet County (830) 596-6900

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 Kathleen O'brien's NPI number?

The NPI number for Kathleen O'brien is 1225044407. It was assigned to this individual provider in the NPPES registry on July 31, 2006.

Where is Kathleen O'brien located?

Kathleen O'brien practices at 100 Pecan Crossing Dr, Horseshoe Bay, TX 78657. The listed phone number is (830) 596-6900.

What is Kathleen O'brien's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Kathleen O'brien enrolled in Medicare?

Yes. Kathleen 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.

What insurance does Kathleen O'brien accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma list Kathleen 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.

Is Kathleen O'brien affiliated with any hospitals?

According to CMS data, Kathleen O'brien is affiliated with Baylor Scott & White Medical Center - Temple and Baylor Scott & White Medical Center - Marble Falls.

When was this NPI record last updated?

The NPPES record for Kathleen O'brien was last updated on December 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.