Nerissa Christine D'Silva, MD
NPI 1932696333ActiveIndividual· Allergy & Immunology· Sugar Land, TX
Allergy & Immunology (MD) in Sugar Land, Texas, trained at Texas Tech University Health Science Center School of Medicine (class of 2018). Their prescriptions cost Medicare Part D more than their services did: $49,856 for 161 claims, against $29,427 paid for services in 2024. Genzyme Corporation was the largest of 16 companies reporting payments in 2025, $3,466 in all, mostly food and beverage.
Overview
| NPI | 1932696333 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 20, 2018 |
| Last updated in NPPES | Nov 14, 2023 |
| Certified by provider | Jul 13, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology Primary | 207K00000X | BP10074372 | TX |
| Internal Medicine | 207R00000X | 11393202-1205 | UT |
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 - Allergy/Immunology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 103 |
|---|---|
| Services billed | 3,665 across 17 procedure codes |
| Paid by Medicare | $29,427 |
Part D prescriptions in 2024
| Prescriptions (claims) | 161 · 228 30-day fills |
|---|---|
| Patients | 71 |
| Total drug cost | $49,856 |
| Generic share | 59% of claims |
Education and affiliations
| Medical school | Texas Tech University Health Science Center School of Medicine |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | Allergy/Immunology |
| Telehealth | Offers telehealth |
Medical groups
- Houston Ear Nose and Throat Clinic LLPKingwood, TX · 31 clinicians
- ENT and Allergy Associates of Texas PLLCHumble, TX · 31 clinicians
Industry payments (Open Payments)
- 2025$3,466 · 72 payments from 16 companies
- 2024$1,040 · 32 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $2,032 | 14 |
| Glaxosmithkline, LLC. | $278.40 | 15 |
| Ars Pharmaceuticals Operations, Inc. | $270.49 | 10 |
| Astrazeneca Pharmaceuticals LP | $150.21 | 7 |
| Csl Behring | $129.34 | 5 |
What the 2025 payments were for
- Food and Beverage$1,986 · 70 payments
- Consulting Fee$1,446 · 1 payment
- Education$34.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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