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

Dr. Buddy Gene Kozen Jr., MD

Individual provider Emergency Medicine Physician · NPI 1164402731

Dr. Buddy Gene Kozen Jr., MD practises Emergency Medicine in Washington, District of Columbia. Graduated from Johns Hopkins University School of Medicine in 2000, 26 years ago. Practices with Johns Hopkins University, a 2,855-clinician group and works from 2 locations. Licensed in Maryland and Virginia.

Years since qualifying
26
Trained at
Johns Hopkins University School of Medicine
Licensed in
MD, VA
In the registry since
2006
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 Partly verified

Some contact details are missing from the federal record.

Office Of Attending Physician H-166 US Capitol
Washington, DC 20515-0001
Phone: (202) 225-5421
Show map & directions

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

Additional practice locations (1)

  • 600 N Wolfe St, Baltimore, MD 21287-0005 — (410) 955-2280

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence D0066024 (MD)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 0101231736 (VA)

Record details

NPI number1164402731
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 19, 2006
Last updated in NPPESApril 25, 2025
Certification dateApril 25, 2025

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolJOHNS HOPKINS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2000 (26 years in practice)
Group practice Johns Hopkins University — 2855 clinicians
Accepts Medicare assignment Not indicated

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 patients74
Services billed 82 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

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 Johns Hopkins University

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2855 clinicians in the practice; 12 are shown here.

Other providers in Washington