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

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.

See every abbreviation used in this directory →

Practice location Address checks out

2150 Pennsylvania Ave NW
Washington, DC 20037-3201
Phone: (202) 741-3000
Show map & directions

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

Other providers in Washington