Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Theodore John Iwashyna, MD

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1609939115

Theodore John Iwashyna, MD is registered under Pulmonary Disease in Ann Arbor, Michigan. Graduated from University of Chicago, Pritzker School of Medicine in 2002, 24 years ago. Practices with Johns Hopkins University, a 2,855-clinician group and works from 2 locations. Licensed in Maryland and Michigan.

Years since qualifying
24
Trained at
University of Chicago, Pritzker School of Medicine
Licensed in
MD, MI
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.

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Practice location Address checks out

1500 E Medical Center Dr
Ann Arbor, MI 48109-5000
Phone: (734) 936-4000
Show map & directions

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

Additional practice locations (1)

  • 600 N Wolfe St Bldg 5th, Baltimore, MD 21287-0005 — (410) 550-5864

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence D95263 (MD)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 4301091903 (MI)

Record details

NPI number1609939115
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 18, 2006
Last updated in NPPESApril 5, 2023
Certification dateApril 5, 2023

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Also practisesCRITICAL CARE (INTENSIVISTS)
Medical schoolUNIVERSITY OF CHICAGO, PRITZKER SCHOOL OF MEDICINE
Graduated 2002 (24 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 patients62
Services billed 239 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

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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