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

Thomas Triantafillou, MD

Individual provider Internal Medicine Physician · NPI 1366504326

Thomas Triantafillou, MD is a Geriatric Medicine in Oak Lawn, Illinois. Qualified in 1998, 28 years ago. Practices with Cook County, a 787-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
28
Licensed in
IL
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

4220 W 95th St Ste 200
Oak Lawn, IL 60453-3072
Phone: (708) 398-0287
Fax: (708) 398-0285
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Geriatric Medicine (Internal Medicine) Physician (primary) Taxonomy 207RG0300X · Licence 036106624 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036-106624 (IL)

Record details

NPI number1366504326
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 15, 2006
Last updated in NPPESDecember 15, 2021
Certification dateDecember 15, 2021
Mailing address4220 W 95th St Ste 200, Oak Lawn, IL 60453-3072

Medicare enrollment

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

Medicare specialtyGERIATRIC MEDICINE
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1998 (28 years in practice)
Group practice Cook County — 787 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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