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Mackenzie Pierce

Physician Assistant β€’ Austin, TX

Active NPI 1922726314 Individual Practitioner Female Practitioner Accepts Medicare assignment Telehealth (some services)
Practice location in NPPES

4101 James Casey St Ste 100
Austin, TX 787451145

Call 5124472202 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

4101 James Casey St Ste 100

Austin, TX 787451145

Telephone 5124472202
Fax 5124475337
Organization at the Same NPPES Address or Phone
Texas Oncology Pa Facility NPI 1972770303

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 2 distinct additional practice-address records in Lakeway, TX; Midland, TX. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 1 group name: Texas Oncology Pa. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

2024

Open Payments general payments, program year 2025

All general payments: $783.12 across 26 records.

By nature of payment

  • Food and Beverage: $783.12 across 26 records.

Reporting-company totals (3 largest of 15)

  • Bristol Myers Squibb Company: $263.55 across 6 records.
  • ABBVIE INC.: $96.49 across 2 records.
  • Genmab U.S., Inc.: $82.02 across 3 records.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

2 years (graduated 2024)

CMS Doctors and Clinicians data list 2024 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2022

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

Telehealth (some services)

Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.

What this does not show: Telehealth (some services)

It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Mackenzie Pierce has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Mackenzie Pierce as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Austin and Texas

607 active clinicians are listed under Physician Assistant with a practice address in Austin, TX (11,008 in Texas).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Austin

15.7% of these 607 clinicians have the CMS telehealth indicator.

47.6% of these 607 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments Β· Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 – December 31, 2025): 26 records totaling $783.12.

Manufacturer Payment Nature Product Type Amount ($)
Bristol Myers Squibb Company
Food and Beverage
Cash or cash equivalent
REBLOZYL General $122.10
Bristol Myers Squibb Company
Food and Beverage
Cash or cash equivalent
BREYANZI General $120.23
ABBVIE INC.
Food and Beverage
In-kind items and services
EPKINLY General $66.66
Gilead Sciences, Inc.
Food and Beverage
In-kind items and services
Trodelvy General $31.26
ABBVIE INC.
Food and Beverage
In-kind items and services
VENCLEXTA General $29.83
Genmab U.S., Inc.
Food and Beverage
In-kind items and services
Epkinly General $29.73
Genmab U.S., Inc.
Food and Beverage
In-kind items and services
Epkinly General $27.81
Pfizer Inc.
Food and Beverage
In-kind items and services
BRAFTOVI General $27.42
Incyte Corporation
Food and Beverage
Cash or cash equivalent
MONJUVI General $26.31
Tempus AI, Inc
Food and Beverage
In-kind items and services
XT CDX General $26.25
KYOWA KIRIN, INC.
Food and Beverage
In-kind items and services
POTELIGEO General $25.46
Sanofi and Genzyme US Companies
Food and Beverage
In-kind items and services
SARCLISA General $24.66
Genmab U.S., Inc.
Food and Beverage
In-kind items and services
Epkinly General $24.48
Genentech, Inc.
Food and Beverage
In-kind items and services
Itovebi General $22.71
Daiichi Sankyo Inc.
Food and Beverage
In-kind items and services
DATROWAY General $22.31
Daiichi Sankyo Inc.
Food and Beverage
In-kind items and services
Enhertu General $20.44
SOBI, INC
Food and Beverage
In-kind items and services
Vonjo General $19.75
Bristol Myers Squibb Company
Food and Beverage
Cash or cash equivalent
REBLOZYL General $19.45
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
LYNPARZA General $19.26
Daiichi Sankyo Inc.
Food and Beverage
In-kind items and services
Enhertu General $19.00
Stemline Therapeutics Inc.
Food and Beverage
In-kind items and services
Orserdu General $18.79
Daiichi Sankyo Inc.
Food and Beverage
In-kind items and services
Vanflyta General $17.99
Bristol Myers Squibb Company
Food and Beverage
Cash or cash equivalent
β€” General $8.57
Bristol Myers Squibb Company
Food and Beverage
Cash or cash equivalent
β€” General $5.90
Bristol Myers Squibb Company
Food and Beverage
Cash or cash equivalent
β€” General $4.17

(top 25 shown)

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2024-11-11
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

License # reported to NPPES TX PA18359

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Student in an Organized Health Care Education/Training Program

NUCC Taxonomy Code: 390200000X

An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Texas Medical Board.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - PHYSICIAN ASSISTANT

Medicare Enrollment ID

I20241109000524

Enrollment State Jurisdiction

TX

PECOS Control ID

9931633278

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Texas Oncology Pa

901 W 38th St, Austin, TX 787051165

Phone: 5124214100

Texas Oncology Pa

4101 James Casey St, Austin, TX 787451145

Texas Oncology Pa

12221 Renfert Way, Austin, TX 787585453

Phone: 5128738900

Texas Oncology Pa

Po Box, Dallas, TX 753911242

Texas Oncology Pa

2300 Lohmans Spur, Lakeway, TX 787346241

Phone: 5123733169

Secondary Practice Locations

3600 N Garfield St

Midland, TX 797056329

Phone: 4326201120

2300 Lohmans Spur Rd Ste 104

Lakeway, TX 787346241

Phone: 5123733169

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

20 listed
Sarah Cain , APRN-CNP

Nurse Practitioner - Family

NPI 1952168098

Advanced Practice Registered Nurse - Certified Nurse Practitioner

Dr. Rene Castillo , MD

Internal Medicine - Medical Oncology

NPI 1134186166

Doctor of Medicine (M.D.)

Dr. Punit Chadha , MD

Internal Medicine - Medical Oncology

NPI 1497778229

Doctor of Medicine (M.D.)

David Espinoza , FNP-C

Nurse Practitioner - Family

NPI 1710590427

Family Nurse Practitioner (Certified)

Pamela Garza , FNP

Nurse Practitioner - Family

NPI 1841232758

Family Nurse Practitioner

Katie Good , PA-C

Physician Assistant

NPI 1093966178

Physician Assistant (Certified)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

8 Historical Events
πŸ“
Updated Practice Location November 11, 2024

Registered at 4101 JAMES CASEY ST STE 100, AUSTIN, TX 787451145 (Tel: 5124472202)

πŸ“
Updated Business Mailing Address November 11, 2024

Registered at PO BOX 911230, DALLAS, TX 753911230 (Tel: 9729978000)

βœ…
NPI Profile Active August 22, 2022

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) August 22, 2022

Registered at 3600 N GARFIELD ST, MIDLAND, TX 797056329 (Tel: 4326201120)

πŸ“
Business Mailing Address (Initial Record) August 22, 2022

Registered at 1505 LUMINA DR, MIDLAND, TX 797052376 (Tel: 9417250065)

πŸ‘€
Provider Name / Credentials (Initial Record) August 22, 2022

Recorded as MACKENZIE PIERCE

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) August 22, 2022

Student in an Organized Health Care Education/Training Program

🟒
Initial NPI Registration & Enumeration August 22, 2022

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1922726314
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: August 22, 2022
Last Update: November 11, 2024
Sole Proprietor: No

Other Physician Assistants in Austin

All Physician Assistants in Austin

Mailing Address

Po Box 911230

Dallas, TX 753911230

Phone: 9729978000

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.