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

Individual provider Internal Medicine Physician · NPI 1154530798

Dr. Ronald Arthur Semerdjian, MD is an Internal Medicine Physician in Wilmette, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2007
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

2507 Kenilworth Ave
Wilmette, IL 60091-1336
Phone: (847) 251-8669
Fax: (847) 251-4455
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X (IL)
Internal Medicine Physician Taxonomy 207R00000X (IL)

Record details

NPI number1154530798
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 21, 2007
Last updated in NPPESSeptember 11, 2025

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