Ryan N. Armstrong, MD
NPI 1154453355ActiveIndividual· Radiology, Vascular & Interventional Radiology· Shenandoah, TX
Radiology, Vascular & Interventional Radiology (MD) in Shenandoah, Texas, trained at University of Texas Medical School at San Antonio (class of 2003). Mostly services rather than prescriptions: Medicare paid $191,577 for 313 patients in 2024, with only 33 Part D claims. Tactile Systems Technology Inc was the largest of 2 companies reporting payments in 2025, $189.40 in all, mostly food and beverage.
Overview
| NPI | 1154453355 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 12, 2007 |
| Last updated in NPPES | Feb 7, 2025 |
| Certified by provider | Feb 7, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Vascular & Interventional Radiology Primary | 2085R0204X | M3868 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Interventional Radiology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 313 |
|---|---|
| Services billed | 772 across 67 procedure codes |
| Paid by Medicare | $191,577 |
Part D prescriptions in 2024
| Prescriptions (claims) | 33 · 33 30-day fills |
|---|---|
| Patients | 13 |
| Total drug cost | $699.81 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | University of Texas Medical School at San Antonio |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Interventional Radiology |
| Secondary specialties | Diagnostic Radiology |
Medical groups
- Singleton Associates PATyler, TX · 838 clinicians
- Texas Endovascular Associates PLLCShenandoah, TX · 12 clinicians
Hospital affiliation
- HCA Houston Healthcare Clear LakeWebster, TX
Industry payments (Open Payments)
- 2025$189.40 · 8 payments from 2 companies
- 2024$110.23 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Tactile Systems Technology Inc | $148.33 | 6 |
| Medtronic, Inc. | $41.07 | 2 |
What the 2025 payments were for
- Food and Beverage$189.40 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Radiology, Vascular & Interventional Radiology providers in Shenandoah
- 1437655834
- 1386030021
All Radiology, Vascular & Interventional Radiology providers in Texas →