Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

LEWIS TSAI
NPI 1538620810
Family Medicine - Sports Medicine in Round Rock, TX

Q: What is Lewis Tsai's NPI number?

The NPI number for Lewis Tsai is 1538620810. It was assigned to this individual provider in the NPPES registry on March 28, 2019.

Q: What is Lewis Tsai's specialty?

The primary specialty registered for this NPI is Family Medicine, specializing in Sports Medicine, with taxonomy code 207QS0010X.

Q: When was this NPI record last updated?

The NPPES record for Lewis Tsai was last updated on September 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 36 days 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.

Active since March 28, 2019PECOS EnrolledAccepts Medicare Assignment

7200 WYOMING SPRINGS DR STE 600, ROUND ROCK, TX 78681(512) 244-1995 Get Directions Write a Review

NPPES record last updated: September 22, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 22, 2026, Jan 8, 2026, Sep 16, 2025 and 2 more (5 updates tracked since 2020).

On this page

About Lewis Tsai NPPES

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

LEWIS TSAI (NPI 1538620810) is an individual sports medicine provider in Round Rock, Texas, licensed in Texas (V2584) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Texas A & M University System, Hsc, College Of Medicine (2019).

NPPES Registry Identity

NPI1538620810

Entity TypeIndividualMale

Primary Taxonomy207QS0010X

Provider Legal NameLEWIS TSAI

Location Address7200 WYOMING SPRINGS DR STE 600Round Rock, TX 78681-4305

Mailing Address4700 Seton Center Pkwy Ste 115Austin, TX 78759-5753

Phone(512) 244-1995

Sole ProprietorYes

Medical School CMSTexas A & M University System, Hsc, College Of MedicineGraduated 2019

Enumeration DateMarch 28, 2019

Last NPPES UpdateSeptember 22, 20265 updates tracked since enumeration

NPPES CertifiedSeptember 22, 2026

✔ NPI 1538620810 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyFamily Medicine · Sports MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207QS0010X

License✔ Licensed in TX · V2584

Definition

A family medicine physician that is trained to be responsible for continuous care in the field of sports medicine, not only for the enhancement of health and fitness, but also for the prevention of injury and illness. A sports medicine physician must have knowledge and experience in the promotion of wellness and the prevention of injury. Knowledge about special areas of medicine such as exercise physiology, biomechanics, nutrition, psychology, physical rehabilitation, epidemiology, physical evaluation, injuries (treatment and prevention and referral practice) and the role of exercise in promoting a healthy lifestyle are essential to the practice of sports medicine. The sports medicine physician requires special education to provide the knowledge to improve the health care of the individual engaged in physical exercise (sports) whether as an individual or in team participation.

Also ListedFamily MedicineTaxonomy 207Q00000X · License V2584 (TX)

7200 WYOMING SPRINGS DR STE 600, Round Rock, TX 78681

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Secondary Practice Locations 3

Location 14700 Campus Village Dr Ste 100Round Rock, TX 78665-3025 · Phone (512) 439-1000 · Fax (512) 439-1085

Location 24700 Seton Center Pkwy Ste 200Austin, TX 78759-4107 · Phone (512) 439-1000 · Fax (512) 439-1085

Location 310861 183A Toll Rd Bldg 12Leander, TX 78641-5487 · Phone (512) 439-1000 · Fax (512) 439-1085

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Oscar Insurance Company, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Lewis Tsai 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 ID2769811280

PECOS Enrollment IDI20240822004663

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.

Medicare Billing Reassignments

Medicare enrollment records show Lewis Tsai reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Family Medicine Associates Of Round Rock, P.A.

Same address

Family Medicine

7200 WYOMING SPRINGS DR STE 600
Round Rock, TX 78681

Reassigned Medicare billing, Texas enrollment
6 clinicians in this Medicare group

NPI 1730181793 (512) 244-1995

Tmc Provider Group PLLC

4.2 mi

Urgent Care

4851 N IH 35
Round Rock, TX 78664

Reassigned Medicare billing, Texas enrollment
223 clinicians in this Medicare group

NPI 1376908178 (512) 486-6140

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

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.

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78681 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 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CHLOE WALSH

Physician Assistant

7200 WYOMING SPRINGS DR STE 600
ROUND ROCK, TX 78681

Williamson County (512) 244-1995

MITCHELL WONG MD

Family Medicine

7200 WYOMING SPRINGS DR STE 600
ROUND ROCK, TX 78681

Williamson County (512) 244-1995

FAMILY MEDICINE ASSOCIATES OF ROUND ROCK, P.A.

Family Medicine

7200 WYOMING SPRINGS DR STE 600
ROUND ROCK, TX 78681

Williamson County (512) 244-1995

BRIAN WALTER OHARE JR.

Family Medicine

7200 WYOMING SPRINGS DR STE 600
ROUND ROCK, TX 78681

Williamson County (512) 244-1995

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 Lewis Tsai's NPI number?

The NPI number for Lewis Tsai is 1538620810. It was assigned to this individual provider in the NPPES registry on March 28, 2019.

Where is Lewis Tsai located?

Lewis Tsai practices at 7200 Wyoming Springs Dr Ste 600, Round Rock, TX 78681. The listed phone number is (512) 244-1995.

What is Lewis Tsai's specialty?

The primary specialty registered for this NPI is Family Medicine, specializing in Sports Medicine, with taxonomy code 207QS0010X.

Is Lewis Tsai enrolled in Medicare?

Yes. Lewis Tsai 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.

Which organizations bill Medicare for Lewis Tsai's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lewis Tsai reassigns Medicare benefits to 2 organizations: Family Medicine Associates Of Round Rock, P.A. (Round Rock, TX) and Tmc Provider Group PLLC (Round Rock, TX). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Lewis Tsai's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Lewis Tsai accept?

Health plans from Blue Cross and Blue Shield of Texas, Oscar Insurance Company and UnitedHealthcare list Lewis Tsai 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.

When was this NPI record last updated?

The NPPES record for Lewis Tsai was last updated on September 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 36 days 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.