THOMAS TRIANTAFILLOU M.D.
NPI 1366504326
Internal Medicine - Geriatric Medicine in Oak Lawn, IL

Active since December 15, 2006PECOS EnrolledAccepts Medicare Assignment
4220 W 95TH ST STE 200, OAK LAWN, IL 60453(708) 398-0287(708) 398-0285 Get Directions Write a Review

NPPES record last updated: December 15, 2021. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Dec 15, 2021, Dec 26, 2018, Dec 20, 2018 (3 updates tracked since 2018).

About Thomas Triantafillou M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

THOMAS TRIANTAFILLOU M.D. (NPI 1366504326) is an individual geriatric medicine provider in Oak Lawn, Illinois, licensed in Illinois (036106624) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS, is affiliated with John H Stroger Jr Hospital, and is a graduate of Other (1998).

NPPES Registry Identity

NPI1366504326
Entity TypeIndividualMale
Primary Taxonomy207RG0300X
Provider Legal NameTHOMAS TRIANTAFILLOUCredential: M.D.
Location Address4220 W 95TH ST STE 200Oak Lawn, IL 60453-3072
Mailing Address4220 W 95th St Ste 200Oak Lawn, IL 60453-3072 · (708) 684-4393
Fax(708) 398-0285
Sole ProprietorNo
Medical School CMSOtherGraduated 1998
Enumeration DateDecember 15, 2006
Last NPPES UpdateDecember 15, 20213 updates tracked since enumeration
NPPES CertifiedDecember 15, 2021
NPI 1366504326 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RG0300X
License Licensed in IL · 036106624
Definition
An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.
Also ListedInternal MedicineTaxonomy 207R00000X · License 036-106624 (IL)
4220 W 95TH ST STE 200, Oak Lawn, IL 60453

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Thomas Triantafillou M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8224174016
PECOS Enrollment IDI20091008000297
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
58 services36 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
57 services35 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
49 services31 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
20 services14 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
17 services16 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
15 services15 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

John H Stroger Jr Hospital

Acute Care Hospitals · Chicago, IL
2/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number140124
Location1901 W Harrison StChicago, IL 60612 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60453 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$183.39 typical visit price
range $60.08 – $183.39
Typical copayment $45.84 (range $15.02 – $45.84)
Most-billed visit code 99205
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260
DME-Hospital Beds · category DB000N
3 suppliers26 claims26 services$47.44 avg. paid by Medicare
Standard hemi (low seat) wheelchair K0002
DME-Wheelchairs · category DD000N
1 supplier15 claims15 services$26.35 avg. paid by Medicare
Elevating leg rests, pair (for use with capped rental wheelchair base) K0195
DME-Wheelchairs · category DD021N
2 suppliers23 claims23 services$7.68 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine
4220 W 95TH ST STE 200
OAK LAWN, IL 60453
Internal Medicine
4220 W 95TH ST STE 200
OAK LAWN, IL 60453
Internal Medicine
4220 W 95TH ST STE 200
OAK LAWN, IL 60453
Internal Medicine
4220 W 95TH ST STE 200
OAK LAWN, IL 60453
Internal Medicine
4220 W 95TH ST STE 200
OAK LAWN, IL 60453
Student in an Organized Health Care Education/Training Program
4220 W 95TH ST STE 200
OAK LAWN, IL 60453
Internal Medicine
4220 W 95TH ST STE 200
OAK LAWN, IL 60453
Pediatrics
4220 W 95TH ST STE 200
OAK LAWN, IL 60453

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Thomas Triantafillou's NPI number?

The NPI number for Thomas Triantafillou is 1366504326. It was assigned to this individual provider in the NPPES registry on December 15, 2006.

Where is Thomas Triantafillou located?

Thomas Triantafillou practices at 4220 W 95th St Ste 200, Oak Lawn, IL 60453. The listed phone number is (708) 398-0287.

What is Thomas Triantafillou's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Is Thomas Triantafillou enrolled in Medicare?

Yes. Thomas Triantafillou is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Thomas Triantafillou accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list Thomas Triantafillou as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Thomas Triantafillou affiliated with any hospitals?

According to CMS data, Thomas Triantafillou is affiliated with John H Stroger Jr Hospital.

When was this NPI record last updated?

The NPPES record for Thomas Triantafillou was last updated on December 15, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.