Quick answers
- Does Sixian C. Welch accept Medicare assignment?
- Yes. Medicare's clinician data says Sixian C. Welch accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Sixian C. Welch see?
- In 2024, CMS data shows 131 Original Medicare patients and 1,063 services for Sixian C. Welch. This counts Original Medicare only and measures volume, not quality.
- What is Sixian C. Welch's NPI number?
- 1811157928. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Sixian C. Welch, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 131 |
|---|---|
| Services billed to Medicare | 1,063 |
| Different services or procedures | 14 |
| Participating Medicare provider | Yes |
| Average age of these patients | 85 |
Most frequent services
- Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)153 services
- Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)135 services
- Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a (G0179)79 services
- Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and (G0180)34 services
- Residence visit for new patient with high level of medical decision making, per day, if using time, at least 75 minutes (99345)33 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol68%
- Arthritis66%
- Alzheimer's disease or dementia66%
- Depression50%
- Anxiety43%
Hospitals where Sixian C. Welch works
Medicare's Facility Affiliation Data lists Sixian C. Welch at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Baylor Scott & White Medical Center - Marble FallsMarble Falls, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 670108
Practice locations
Addresses where Sixian C. Welch is enrolled with Medicare (CMS data updated October 2, 2026).
- 11001 Austin LnAustin, TX 78758 (337) 991‑9276
- 1105 Rock Prairie RdCollege Sta, TX 77845 (337) 991‑9276
- 2351 Oakmont DrRound Rock, TX 78665 (337) 991‑9276
- 2802 Flintrock Trce, Suite 201Austin, TX 78738 (337) 991‑9276
- 3405 El Salido PkwyCedar Park, TX 78613 (512) 270‑2247
Group practices
Medicare enrollment lists Sixian C. Welch as a member of these groups (CMS data updated October 2, 2026).
- Legacy Healthcare Services Inc3,223 clinicians in the group
- Curana Health Medical Group LLC138 clinicians in the group
- CH Specialty Services TX PLLC110 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Austin
Clinicians with the same Medicare primary specialty in Austin, TX — not a recommendation.
Other clinicians in Legacy Healthcare Services Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2008 (18 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1811157928 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians