Sadia M. Hayat Khan, MD
NPI 1932315769ActiveIndividual· Allergy & Immunology· Falls Church, VA
Allergy & Immunology (MD) with Privia Medical Group, LLC and 1 other group, practicing in Falls Church, Virginia. Their prescriptions cost Medicare Part D more than their services did: $42,386 for 62 claims, against $7,752 paid for services in 2024. Regeneron Healthcare Solutions, Inc. was the largest of 16 companies reporting payments in 2025, $1,887 in all, mostly food and beverage.
Overview
| NPI | 1932315769 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 16, 2007 |
| Last updated in NPPES | Apr 16, 2026 |
| Certified by provider | Apr 16, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology Primary | 207K00000X | 0101273481 | VA |
| Internal Medicine, Allergy & Immunology | 207RA0201X | 0434939 | KS |
| Internal Medicine | 207R00000X | 2004035766 | MO |
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 (DC); Practitioner - Allergy/Immunology (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 31 |
|---|---|
| Services billed | 172 across 14 procedure codes |
| Paid by Medicare | $7,752 |
Part D prescriptions in 2024
| Prescriptions (claims) | 62 · 96 30-day fills |
|---|---|
| Patients | 16 |
| Total drug cost | $42,386 |
| Generic share | 68% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Allergy/Immunology |
Medical groups
- Privia Medical Group, LLCFairfax, VA · 1,533 clinicians
- Institute for Asthma and Allergy PCNorth Palm Beach, FL · 13 clinicians
Industry payments (Open Payments)
- 2025$1,887 · 63 payments from 16 companies
- 2024$1,469 · 64 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | $452.51 | 7 |
| Genzyme Corporation | $369.57 | 13 |
| Genentech USA, Inc. | $190.26 | 6 |
| Astrazeneca Pharmaceuticals LP | $188.79 | 8 |
| Ars Pharmaceuticals Operations, Inc. | $133.70 | 6 |
What the 2025 payments were for
- Food and Beverage$1,789 · 61 payments
- Education$97.39 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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