Quick answers
- Which hospitals does Walid Chalhoub work at?
- Medicare's official clinician data lists Walid Chalhoub at 4 hospitals: Adventist Healthcare White Oak Medical Center, MedStar Georgetown University Hospital, MedStar Saint Mary's Hospital and MedStar Southern Maryland Hospital Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Walid Chalhoub see patients?
- Medicare's clinician data lists 6 practice locations, including Washington, DC, Leonardtown, MD and Baltimore, MD. Call before your visit to confirm the address.
- What is Walid Chalhoub's specialty?
- Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
- Does Walid Chalhoub accept Medicare assignment?
- Yes. Medicare's clinician data says Walid Chalhoub accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Walid Chalhoub offer telehealth?
- Medicare's clinician data says Walid Chalhoub offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Walid Chalhoub?
- (202) 429-2401, as listed in official Medicare / NPI Registry data.
- What is Walid Chalhoub's NPI number?
- 1164759445. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Walid Chalhoub works
Medicare's Facility Affiliation Data lists Walid Chalhoub at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Adventist Healthcare White Oak Medical CenterSilver Spring, MD · Acute Care Hospital · CCN 210016
- MedStar Georgetown University HospitalWashington, DC · Acute Care Hospital · CCN 090004
- MedStar Saint Mary's HospitalLeonardtown, MD · Acute Care Hospital · CCN 210028
- MedStar Southern Maryland Hospital CenterClinton, MD · Acute Care Hospital · CCN 210062
Practice locations
Addresses where Walid Chalhoub is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1145 19th St NW, 311 Mmg at 19th Street NWWashington, DC 20036 (202) 429‑2401
- 25500 Point Lookout RdLeonardtown, MD 20650 (240) 434‑4088
- 3800 Reservoir Rd NWWashington, DC 20007
- 4660 Wilkens Ave, Suite 100Baltimore, MD 21229 (410) 247‑0782
- 7501 Surratts RdClinton, MD 20735 (301) 877‑7353
Group practices
Medicare enrollment lists Walid Chalhoub as a member of this group (CMS data updated 2026-10-02).
- MedStar Medical Group II LLC3,767 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Find other Gastroenterology doctors in District of Columbia →
Other gastroenterologists in Washington
Clinicians with the same Medicare primary specialty in Washington, DC — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2005 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1164759445 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians