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

Nathan A Irvin, MD

Individual provider Emergency Medicine Physician · NPI 1720217631

Nathan A Irvin, MD practises Emergency Medicine in Baltimore, Maryland. Graduated from Harvard Medical School in 2007, 19 years ago. Practices with Johns Hopkins University, a 2,855-clinician group and works from 2 locations. Licensed in Maryland and Pennsylvania.

Years since qualifying
19
Trained at
Harvard Medical School
Licensed in
MD, PA
In the registry since
2009
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

600 N Wolfe St
Baltimore, MD 21264-4206
Phone: (410) 955-5080
Show map & directions

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

Additional practice locations (1)

  • 3400 Spruce Street, Philadelphia, PA 19104-4206 — (215) 662-7248

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence D76556 (MD)
Emergency Medicine Physician Taxonomy 207P00000X · Licence MD442760 (PA)

Record details

NPI number1720217631
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 13, 2009
Last updated in NPPESApril 2, 2024
Certification dateApril 2, 2024

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 2007 (19 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 patients181
Services billed 191 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

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