Sixian Welch, D.O.
NPI 1811157928 · Internal Medicine Physician · Marble Falls, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sixian Welch, D.O. is a Internal Medicine Physician provider in Marble Falls, TX (NPI 1811157928).
Provider details
- NPI number
- 1811157928
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- Yes
- License
- BP10031984 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
466 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 153 | $121 |
| Residence Visit for Established Patient With High Level of Medical Decision Making, Per Day, If Using Time, at Least 60 Minutes99350 | 135 | $176 |
| 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 aG0179 | 79 | $40 |
| 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 andG0180 | 34 | $51 |
| Residence Visit for New Patient With High Level of Medical Decision Making, Per Day, If Using Time, at Least 75 Minutes99345 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 118 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 393 | 89 |
| Furosemide | 284 | 52 |
| Donepezil Hcl | 240 | 47 |
| Amlodipine Besylate | 215 | 45 |
| Atorvastatin Calcium | 211 | 42 |
| Gabapentin | 207 | 48 |
| Escitalopram Oxalate | 190 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$202 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-06-11
- Last updated
- 2024-12-02
- Certified
- 2024-12-02
Frequently asked questions
- What is Sixian Welch's NPI number?
- Sixian Welch's National Provider Identifier (NPI) is 1811157928, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sixian Welch's specialty?
- Sixian Welch is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sixian Welch located?
- Sixian Welch's practice location on file with NPPES is 810 W Highway 71, Marble Falls, TX 78654-8602.
- What is Sixian Welch's phone number?
- The practice phone number listed in the NPPES registry for Sixian Welch is (830) 201-7100.
- Does Sixian Welch accept Medicare?
- Sixian Welch is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sixian Welch's NPI active?
- Yes — Sixian Welch's NPI (1811157928) is active in the NPPES registry as of the last update on 2024-12-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.