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

Individual provider Internal Medicine Physician · NPI 1740249259

Dr. Arun Amirthalingam Kumar, MD is an Internal Medicine in Naperville, Illinois. Qualified in 1995, 31 years ago. Accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
31
Licensed in
IL
In the registry since
2006
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

931 W 75th St SUITE127
Naperville, IL 60565-1294
Phone: (630) 579-4668
Fax: (630) 579-1107
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X (IL)

Record details

NPI number1740249259
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 22, 2006
Last updated in NPPESJuly 13, 2026
Mailing address931 W 75th St, Suite127, Naperville, IL 60565-1294

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1995 (31 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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