Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Hassan O. Khalil, MD

Individual provider Internal Medicine Physician · NPI 1538678297

Hassan O. Khalil, MD is an Internal Medicine Physician in Washington, District of Columbia. Works from 3 locations. Licensed in District of Columbia and Massachusetts.

Licensed in
DC, MA
In the registry since
2017
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2150 Pennsylvania Ave NW
Washington, DC 20037-3201
Phone: (202) 741-3000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 900 143rd Ave Apt 39, San Leandro, CA 94578-3345 — (817) 688-9357
  • 1150 Varnum St Ne, Washington, DC 20017-2104 — (817) 688-9357

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 284084 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MTL004484 (DC)

Record details

NPI number1538678297
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 26, 2017
Last updated in NPPESJuly 21, 2022
Certification dateSeptember 23, 2020

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Travel and Lodging $1,242 5 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $1,113 26 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

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