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

Joseph Delio

Individual provider Internal Medicine Physician · NPI 1114346939

Joseph Delio is registered under Pulmonary Disease in Washington, District of Columbia. Graduated from George Washington University School of Medicine in 2014, 12 years ago. Practices with Capital Critical Care, LLC, a 19-clinician group, works from 7 locations and accepts Medicare assignment. Licensed in District of Columbia and Virginia.

Years since qualifying
12
Trained at
George Washington University School of Medicine
Licensed in
DC, VA
In the registry since
2014
Specialties on file
5
Claim this listing Report a problem Suggest an edit

Practice location Address checks out

900 23rd St NW
Washington, DC 20037-2342
Phone: (202) 715-4750
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (6)

  • 4320 Seminary Rd, Alexandria, VA 22304-1535 — (703) 504-3000
  • 2501 Parkers Ln, Alexandria, VA 22306-3209 — (703) 664-7000
  • 3600 Joseph Siewick Dr, Fairfax, VA 22033-1709 — (703) 391-3600
  • 8110 Gatehouse Rd Ste 600w, Falls Church, VA 22042-1210 — (703) 289-8600
  • 3300 Gallows Rd, Falls Church, VA 22042-3307 — (703) 776-3582
  • 44045 Riverside Pkwy, Leesburg, VA 20176-5101 — (703) 858-6000

Specialties & licences

Critical Care Medicine (Anesthesiology) Physician (primary) Taxonomy 207LC0200X · Licence MD043886 (DC)
Internal Medicine Physician Taxonomy 207R00000X · Licence 0101260975 (VA)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence MD043886 (DC)
Hospitalist Physician Taxonomy 208M00000X · Licence 0101260975 (VA)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 0101260975 (VA)

Record details

NPI number1114346939
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedApril 9, 2014
Last updated in NPPESApril 17, 2023
Certification dateApril 17, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPULMONARY DISEASE
Also practisesINTERNAL MEDICINE
Medical schoolGEORGE WASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2014 (12 years in practice)
Group practice Capital Critical Care, Llc — 19 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients72
Services billed 107 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Capital Critical Care, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 19 clinicians in the practice; 11 are shown here.

Other providers in Washington