Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Timothy Choi, DO

Individual provider Emergency Medicine Physician · NPI 1225693948

Timothy Choi, DO practises Emergency Medicine in Round Rock, Texas. Graduated from Michigan State University College of Osteopathic Medicine in 2019, 7 years ago. Practices with Longhorn Emergency Medical Associates PA, a 148-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Michigan and Texas.

Years since qualifying
7
Trained at
Michigan State University College of Osteopathic Medicine
Licensed in
MI, TX
In the registry since
2019
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

300 University Blvd
Round Rock, TX 78665-1032
Phone: (512) 509-0100
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 12221 N Mopac Expy, Austin, TX 78758-2401 — (512) 901-1000

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence T9662 (TX)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 5101025825 (MI)

Record details

NPI number1225693948
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 8, 2019
Last updated in NPPESJanuary 20, 2026
Certification dateJanuary 20, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2019 (7 years in practice)
Group practice Longhorn Emergency Medical Associates Pa — 148 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of nail tissue 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients466
Services billed 752 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Travel and Lodging $689 1 payment · travel or lodging paid or reimbursed, such as to attend a conference

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Longhorn Emergency Medical Associates PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 148 clinicians in the practice; 12 are shown here.

Other providers in Round Rock