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

Lewis Tsai

Individual provider Family Medicine Physician · NPI 1538620810

Lewis Tsai is registered under Family Practice in Round Rock, Texas. Graduated from Texas a & M University System, Hsc, College of Medicine in 2019, 7 years ago. Practices with Tmc Provider Group PLLC, a 214-clinician group, works from 4 locations, accepts Medicare assignment and offers telehealth. Licensed in Texas.

Years since qualifying
7
Trained at
Texas a & M University System, Hsc, College of Medicine
Licensed in
TX
In the registry since
2019
Specialties on file
2
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Practice location Address checks out

7200 Wyoming Springs Dr Ste 600
Round Rock, TX 78681-4305
Phone: (512) 244-1995
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 (3)

  • 4700 Seton Center Pkwy Ste 200, Austin, TX 78759-4107 — (512) 439-1000
  • 10861 183a Toll Rd Bldg 12, Leander, TX 78641-5487 — (512) 439-1000
  • 4700 Campus Village Dr Ste 100, Round Rock, TX 78665-3025 — (512) 439-1000

Specialties & licences

Sports Medicine (Family Medicine) Physician (primary) Taxonomy 207QS0010X · Licence V2584 (TX)
Family Medicine Physician Taxonomy 207Q00000X · Licence V2584 (TX)

Record details

NPI number1538620810
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedMarch 28, 2019
Last updated in NPPESSeptember 22, 2026
Certification dateSeptember 22, 2026

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolTEXAS A & M UNIVERSITY SYSTEM, HSC, COLLEGE OF MEDICINE
Graduated 2019 (7 years in practice)
Group practice Tmc Provider Group Pllc — 214 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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 skin lesions 1–10 times
Skin biopsy 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 patients20
Services billed 42 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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.

Food and Beverage $505 25 payments · a meal or drink at a meeting or visit, not a fee

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.

Colleagues at Tmc Provider Group PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 214 clinicians in the practice; 12 are shown here.

Other providers in Round Rock