NPI age
19 years
Enumerated 2006-11-17
● Active Type 2 · Organization
Radiation Oncology Associates Of South Texas, L.l.p.
Radiation Oncology Associates Of South Texas, L.l.p. is 1 of 30 radiology organizations in Texas.
Primary specialty
Radiology
Practice locations
1
0 secondary on file
Status
Active
No deactivations on record
Authorized official
Chen
Office Administrator
Last NPPES update
2010-02-11
Source: monthly bulk 2026-05
How this organization compares
Across 30 active radiology providers in Texas.
NPI age
19 years
≈ at median (19 yr)
Practice locations
1
0 secondary on file
Subspecialties
0
NPI lifetime · 2006 → 2026
2006-11Enumerated in NPPES
2006
2026
Where they practice
Primary practice location
2807 N Ben Wilson St, Suite 201
Victoria, TX 779015730
Mailing address
1502 E Red River St, #347
Victoria, TX 779015523
Authorized official
Grace Ling Chen, R.N., PH.D.
Office Administrator
📞 3615769812
Individual providers at this organization
2 individual providers on file at this primary practice address.
- Karl Chen, M.D. Radiology NPI 1538248695
- David Janssen, M.D. Radiology NPI 1093894198
Specialties
-
Radiology PrimaryTherapeutic Radiology certificate name was changed to Radiation Oncology. Use Radiation Oncology.
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 (TX) | 00F16E | BLUE CROSS BLUE SHIELD |
| 01 | 1538248695 | KARL K. CHEN, M.D., NPI |
| 01 (TX) | CS4948 | RAIL ROAD MEDICARE |
| 01 (TX) | E21013 | KARL K. CHEN, M.D., UPIN |
| 05 (TX) | 082420301 | |
| 01 | 1093894198 | DAVID L. JANSSEN, M.D., NPI |
| 01 (TX) | A13659 | DAVID L. JANSSEN,MD, UPIN |
Other names on file (1)
Doing-business-as, former, and alternate names recorded by NPPES.
-
ROAST
Practice context
Multi-provider organization. 2 individual providers on file at this primary address.
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
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