Nadeem A. Khan, MD
NPI 1396708392ActiveIndividual· Internal Medicine, Gastroenterology· Leesburg, VA
Internal Medicine, Gastroenterology (MD) with Loudoun Medical Group, PC, practicing in Leesburg, Virginia. Their prescriptions cost Medicare Part D more than their services did: $258,890 for 520 claims, against $47,900 paid for services in 2024. Salix Pharmaceuticals, A Division of Bausch Health US, LLC was the largest of 13 companies reporting payments in 2025, $558.18 in all, mostly food and beverage. Lists Inova Loudoun Hospital as a hospital affiliation.
Overview
| NPI | 1396708392 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 10, 2006 |
| Last updated in NPPES | Apr 12, 2026 |
| Certified by provider | Apr 12, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 0101238099 | VA |
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 - Gastroenterology (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 283 |
|---|---|
| Services billed | 497 across 18 procedure codes |
| Paid by Medicare | $47,900 |
Part D prescriptions in 2024
| Prescriptions (claims) | 520 · 1,154 30-day fills |
|---|---|
| Patients | 195 |
| Total drug cost | $258,890 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 1987 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Loudoun Medical Group, PCLovettsville, VA · 271 clinicians
Hospital affiliation
- Inova Loudoun HospitalLeesburg, VA
Industry payments (Open Payments)
- 2025$558.18 · 25 payments from 13 companies
- 2024$714.13 · 33 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $89.06 | 4 |
| Abbvie Inc. | $88.37 | 4 |
| Madrigal Pharmaceuticals | $77.25 | 3 |
| Takeda Pharmaceuticals U.S.A., Inc. | $76.25 | 4 |
| Ipsen Biopharmaceuticals, Inc | $54.80 | 2 |
What the 2025 payments were for
- Food and Beverage$558.18 · 25 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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