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

Devalingam Mahalingam, MD

Individual provider Internal Medicine Physician · NPI 1164650859

Devalingam Mahalingam, MD is a Hematology/Oncology in Chicago, Illinois. Qualified in 2000, 26 years ago. Practices with Northwestern Medical Faculty Foundation, a 4,394-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois and Texas.

Years since qualifying
26
Licensed in
IL, TX
In the registry since
2009
Specialties on file
3
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

645 N Michigan Ave Ste 1006
Chicago, IL 60611-2814
Phone: (210) 413-1723
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence 036-142503 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence P1668 (TX)
Medical Oncology Physician Taxonomy 207RX0202X · Licence P1668 (TX)

Record details

NPI number1164650859
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 1, 2009
Last updated in NPPESJuly 21, 2022

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2000 (26 years in practice)
Group practice Northwestern Medical Faculty Foundation — 4394 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations13 on file with Medicare

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