Viswanathan Aiyer, MD
NPI 1083603724ActiveIndividual· Anesthesiology· Houston, TX
Anesthesiology (MD) in Houston, Texas, trained at University of Texas Southwestern Medical School at Dallas (class of 1997). Medicare paid $23,312 for services to 215 patients in 2024. Pacira Pharmaceuticals Incorporated was the largest of 2 companies reporting payments in 2025, $63.30 in all, mostly food and beverage.
Overview
| NPI | 1083603724 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 16, 2005 |
| Last updated in NPPES | Jun 5, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | L7956 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Anesthesiology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 215 |
|---|---|
| Services billed | 244 across 43 procedure codes |
| Paid by Medicare | $23,312 |
Education and affiliations
| Medical school | University of Texas Southwestern Medical School at Dallas |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Anesthesiology |
Medical group
- U S Anesthesia Partners of Texas, PAHouston, TX · 2,752 clinicians
Hospital affiliations
- HCA Houston Healthcare Clear LakeWebster, TX
- Houston Methodist Baytown HospitalBaytown, TX
Industry payments (Open Payments)
- 2025$63.30 · 3 payments from 2 companies
- 2024$44.33 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pacira Pharmaceuticals Incorporated | $45.88 | 2 |
| Merck Sharp & Dohme LLC | $17.42 | 1 |
What the 2025 payments were for
- Food and Beverage$63.30 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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