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KATHERINE LEE ONEIL DO
NPI 1477133114
Emergency Medicine in Southlake, TX

Active since April 08, 2021PECOS Enrolled
421 E STATE HIGHWAY 114 # 100, SOUTHLAKE, TX 76092(682) 335-2000 Get Directions Write a Review

NPPES record last updated: May 3, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: May 3, 2026, Apr 8, 2021 (2 updates tracked since 2021).

About Katherine Lee Oneil Do NPPES

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

KATHERINE LEE ONEIL DO (NPI 1477133114) is an individual emergency medicine provider in Southlake, Texas, licensed in Texas (W4916) and active in the NPI registry since April 2021. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1477133114
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameKATHERINE LEE ONEILCredential: DO
Location Address421 E STATE HIGHWAY 114 # 100Southlake, TX 76092-3635
Mailing Address6113 Legacy TrlColleyville, TX 76034-1328 · (817) 578-4786
Phone(682) 335-2000
Sole ProprietorNo
Enumeration DateApril 8, 2021
Last NPPES UpdateMay 3, 20262 updates tracked since enumeration
NPPES CertifiedMay 3, 2026
✔ NPI 1477133114 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in TX · W4916
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
421 E STATE HIGHWAY 114 # 100, Southlake, TX 76092
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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 (PECOS)

Katherine Lee Oneil Do 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.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
87 services87 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
15 services15 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 76092 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
$87.20 typical visit price
range $56.47 – $171.07
Typical copayment $21.80 (range $14.11 – $42.76)
Most-billed visit code 99203
Established Patient
$99.68 typical visit price
range $18.18 – $139.68
Typical copayment $24.92 (range $4.54 – $34.92)
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.

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 Katherine Oneil's NPI number?

The NPI number for Katherine Oneil is 1477133114. It was assigned to this individual provider in the NPPES registry on April 8, 2021.

Where is Katherine Oneil located?

Katherine Oneil practices at 421 E State Highway 114 # 100, Southlake, TX 76092. The listed phone number is (682) 335-2000.

What is Katherine Oneil's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Katherine Oneil enrolled in Medicare?

Yes. Katherine Oneil is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Katherine Oneil was last updated on May 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.