Dr. Hieu Ton-That, MD

  • Maywood, IL
  • General surgeon
NPI1457359259PAC ID8729048376
Medicare services, 2024
498
Medicare patients, 2024
268
Part D claims, 2018
13
Hospital affiliations
5
Industry payments
$14,321
Practice address
2160 S 1st Avenue, Maywood, IL 60153
Practice phone
Call (708) 216-3299
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Loyola Medicine Pediatric Mobile Health Unit

Mobile Lab · Maywood, Illinois

See all 7 affiliations

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Dr. Hieu Ton-That is a general surgeon in Maywood, Illinois

Dr. Ton-That practices at Loyola Medicine Pediatric Mobile Health Unit in Maywood, Illinois.

Dr. Ton-That's NPI, 1457359259, was assigned on July 14, 2005. Dr. Ton-That graduated from Warren Alpert Medical School of Brown University in 1998. Dr. Ton-That holds Illinois license 036106817.

NPI and contact details
Medicare PAC ID
8729048376
NPI enumeration date
July 14, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(708) 216-3299
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
54
Medical school graduation
1998

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Hieu Ton-That practices at Loyola Medicine Pediatric Mobile Health Unit in Maywood, Illinois

Dr. Ton-That's primary practice is Loyola Medicine Pediatric Mobile Health Unit, at 2160 S 1st Avenue, Maywood, IL 60153. The practice phone is (708) 216-3299.

  • Loyola Medicine Pediatric Mobile Health Unit
    2160 S 1st Avenue, Maywood, IL 60153Phone(708) 216-3299

Source: Dmand AI Affiliation Data

Dr. Hieu Ton-That is affiliated with 6 sites of care and 1 medical group

Dr. Ton-That's primary practice is Loyola Medicine Pediatric Mobile Health Unit in Maywood, Illinois. Dr. Ton-That is also affiliated with Loyola University Medical Center. The medical group on file is Loyola University Medical Center. Dmand AI also links Dr. Ton-That to 4 more hospitals, each named with a free account. Dr. Ton-That's employer is on file too: a clinical lab.

See all 7 affiliations for Dr. Ton-That

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Hieu Ton-That's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ton-That practices, 6 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Loyola Medicine Pediatric Mobile Health UnitAvailable with a free account
+5 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Hieu Ton-That is one of 1,217 general surgeons in Illinois

Surgery is Dr. Ton-That's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dmand AI has Dr. Ton-That's licenses on file in 2 states: Illinois and Rhode Island.

Specialties and state licenses

  • Surgery, IllinoisPrimaryLicense 036106817 · taxonomy 208600000X
  • Surgical critical care, Rhode IslandLicense 11574 · taxonomy 2086S0102X

General surgeons near Dr. Ton-That

Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Hieu Ton-That billed Medicare for 498 services in 2024

CMS data shows 498 Medicare services from Dr. Ton-That across 7 procedure codes in 2024, for 268 Medicare patients. Medicare paid $60,258 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024498
Medicare patients268
Paid by Medicare$60,258
Procedure codes7

Dr. Ton-That's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 4082024: 48218%
Surgery
2023: 112024: 1645%

Dr. Ton-That compared with the Illinois median for general surgeons, 2024

  • Dr. Ton-That
  • Illinois median
Medicare services
498vs 1942.6 times
Medicare patients
268vs 14486% above
Part D claims
13vs 2854% below

Medians across 1,031 general surgeons in Illinois with Dmand AI profiles that report each measure.

Dr. Ton-That's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Ton-That

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Hieu Ton-That treated 268 Medicare patients in 2024, average age 75

CMS counts 268 Medicare patients who saw Dr. Ton-That in 2024. The largest group is 75 to 84, with 97 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 34% are also on Medicaid. Their average risk score is 2.74, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Ton-That's median patient age at 71, with 45% women.

Medicare patients, 2024268
Average age75
Average risk score2.74
Also on Medicaid34%

Dr. Ton-That's Medicare patients by age, 2024

Dr. Ton-That's Medicare patients by sex, 2024

  • Women14253%
  • Men12647%

Chronic conditions among Dr. Ton-That's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis66%
  4. Diabetes52%
  5. Ischemic heart disease50%
  6. Chronic kidney disease43%
  7. Heart failure42%
  8. Mood disorders40%

Share of Medicare patients with each condition. A patient can have several.

Dr. Ton-That's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 71

Patient panel by sex, all payers

  • Women45%
  • Men55%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Hieu Ton-That wrote 13 Medicare Part D claims in 2018

In 2018, Dr. Ton-That wrote 13 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $112 in total drug cost. In 2017, CMS named 35 claims across 3 drugs.

Part D claims, 201813
Drugs named by CMS1
Total drug cost$112

Dr. Ton-That's most prescribed drugs by claims, 2018

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2017 to 2018

  • 2017
  • 2018
Claims for drugs CMS names
2017: 352018: 1363%

Drugs named by CMS: 1 in 2018, 3 in 2017.

See all prescribing by Dr. Ton-That

Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026

How Dr. Hieu Ton-That takes part in Medicare

Dr. Ton-That accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)

Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)

Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)

Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)

Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Hieu Ton-That received $14,321 in industry payments from 2016 to 2024

CMS Open Payments shows 30 general payments to Dr. Ton-That from 5 drug and device companies from 2016 to 2024. Education make up the largest share, 91% of the total. Intuitive Surgical, Inc. paid the most, $13,838.

General payments to Dr. Ton-That by program year, 2016 to 2024

General payments to Dr. Ton-That by kind, 2016 to 2024

$14.3Kin total
  • Education$13,00091%
  • Food and beverage$7075%
  • Travel and lodging$6154%

Companies that paid Dr. Ton-That the most, 2016 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Ton-That

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Hieu Ton-That graduated from Warren Alpert Medical School of Brown University

Dr. Ton-That graduated from Warren Alpert Medical School of Brown University in 1998.

  1. Medical schoolWarren Alpert Medical School of Brown University

Source: Dmand AI Professional Profile Data

Sources for Dr. Hieu Ton-That's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Hieu Ton-That

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Hieu Ton-That's NPI number?

Dr. Hieu Ton-That's NPI number is 1457359259. It was assigned on July 14, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Hieu Ton-That?

Dr. Hieu Ton-That is a general surgeon in Maywood, Illinois. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).

Where does Dr. Hieu Ton-That practice?

Dr. Ton-That practices at 2160 S 1st Avenue, Maywood, IL 60153. Dr. Ton-That's primary practice is Loyola Medicine Pediatric Mobile Health Unit in Maywood, Illinois. Dmand AI also links Dr. Ton-That to 4 hospitals.

What is Dr. Hieu Ton-That's office phone number?

The practice phone on file for Dr. Ton-That is (708) 216-3299.

What is Dr. Hieu Ton-That's medical license number?

Dr. Ton-That holds Illinois license 036106817, one of the licenses on file in 2 states.

Which states has Dr. Hieu Ton-That been licensed in?

Dmand AI has state licenses on file for Dr. Ton-That in Illinois and Rhode Island.

Which hospitals is Dr. Hieu Ton-That affiliated with?

Dr. Ton-That is affiliated with Loyola University Medical Center. Dmand AI links Dr. Ton-That to 4 more hospitals.

What medical group is Dr. Hieu Ton-That part of?

Dr. Ton-That is linked to Loyola University Medical Center.

Does Dr. Hieu Ton-That accept Medicare?

Yes. CMS data shows Dr. Ton-That billed Medicare for 498 services in 2024, and Dr. Ton-That accepts Medicare assignment.

How many Medicare patients does Dr. Hieu Ton-That see?

CMS counts 268 Medicare patients who saw Dr. Ton-That in 2024, with an average age of 75.

Show 5 more questionsShow fewer questions

What services does Dr. Hieu Ton-That bill to Medicare?

In 2024, Dr. Ton-That's most billed Medicare services were hospital inpatient care (99233), critical care (99291) and hospital inpatient care (99223).

Where did Dr. Hieu Ton-That go to medical school?

Dr. Ton-That graduated from Warren Alpert Medical School of Brown University in 1998.

What drugs does Dr. Hieu Ton-That prescribe most?

In 2018 Medicare Part D data, Dr. Ton-That's most prescribed drugs by claims were Tramadol HCl.

Has Dr. Hieu Ton-That received payments from drug or device companies?

CMS Open Payments shows $14,321 in general payments to Dr. Ton-That from 5 companies from 2016 to 2024. The largest total came from Intuitive Surgical, Inc.

How long has Dr. Hieu Ton-That been practicing?

Dr. Ton-That graduated from medical school in 1998, 28 years ago.

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