Walid Chalhoub, M.D.
NPI 1164759445ActiveIndividual· Internal Medicine, Gastroenterology· Washington, DC
Internal Medicine, Gastroenterology (M.D.) with Medstar Medical Group II LLC, practicing in Washington, District of Columbia. In 2024 Medicare paid $204,649 for 660 patients, and Part D covered 74 of their prescriptions, 80% of them generic. Boston Scientific Corporation was the largest of 2 companies reporting payments in 2025, $749.63 in all, mostly travel and lodging. Lists Adventist Healthcare White Oak Medical Center and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1164759445 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 7, 2009 |
| Last updated in NPPES | Feb 11, 2026 |
| Certified by provider | Feb 11, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | MD040496 | DC |
| Internal Medicine | 207R00000X | 259575 | NY |
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 (DC); Practitioner - Gastroenterology (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 660 |
|---|---|
| Services billed | 1,483 across 63 procedure codes |
| Paid by Medicare | $204,649 |
Part D prescriptions in 2024
| Prescriptions (claims) | 74 · 134 30-day fills |
|---|---|
| Patients | 42 |
| Total drug cost | $11,673 |
| Generic share | 80% of claims |
Education and affiliations
| Graduation year | 2005 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Medstar Medical Group II LLCWashington, DC · 3,767 clinicians
Hospital affiliations
- Adventist Healthcare White Oak Medical CenterSilver Spring, MD
- Medstar Georgetown University HospitalWashington, DC
- Medstar Saint Mary's HospitalLeonardtown, MD
- Medstar Southern Maryland Hospital CenterClinton, MD
Industry payments (Open Payments)
- 2025$749.63 · 4 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $666.05 | 3 |
| Echosens North America, Inc. | $83.58 | 1 |
What the 2025 payments were for
- Travel and Lodging$440.81 · 1 payment
- Food and Beverage$308.82 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 96 gastroenterologists in Washington · All gastroenterologists in District of Columbia