VINCENT M. TJIA (MD) – Nephrology Physician, NPI 1306803937
Nephrology Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
1,168 NEPHROLOGY in TX
Provider Addresses for VINCENT M. TJIA (MD)
408 W 45TH ST
AUSTIN, TX 787513014
Phone: (512) 320-1500
Fax: (512) 459-1399
Type: Mailing
321 W BEN WHITE BLVD
AUSTIN, TX 787047035
Phone: (512) 320-1500
Fax: (512) 459-1399
Type: Location
12221 N MOPAC EXPY
AUSTIN, TX 787582401
Phone: (512) 901-4010
Fax: (512) 901-3910
Type: Mailing
Mopac Expressway, Austin, Travis County, Texas, 78739, United States
AUSTIN, TX 787582483
Phone: (512) 901-4010
Fax: (512) 901-3910
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 94 Open Payments records for all available years, with a total value of $2,812.
Total Amount is formed as General ($2,812) + Research ($0) + Ownership ($0) = $2,812.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: Bayer Healthcare Pharmaceuticals Inc. ($802).
Total Amount
$2,812
General + Research + Ownership
Payments
94
Total payment records
General Amount
$2,812
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Bayer Healthcare Pharmaceuticals Inc. | $802 |
| Amgen Inc. | $274 |
| Aurinia Pharma U.S., Inc. | $107 |
| Travere Therapeutics, Inc. | $107 |
| GlaxoSmithKline, LLC. | $105 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2004-06-29
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20040629001164 | I | Nephrology | TX | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 191 | 84 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 135 | 72 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 134 | 106 | $0 |
| 90960 | Dialysis services, 4 or more physician visits per month (20 years or older) | 102 | 32 | $0 |
| 90961 | Dialysis services, 2-3 physician visits per month (20 years or older) | 73 | 39 | $0 |
Insurance plans in this area (ZIP 78751)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | TX | |
| - | TX | |
| - | TX | |
| - | TX | |
| Nurse Practitioner | TX | |
| - | TX | |
| - | TX | |
| Nurse Practitioner | TX | |
| Family Practice | TX | |
| Family Practice | TX |
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