Dr. Steven John Antonini, MD
- Medicare services, 2024
- 485
- Medicare patients, 2024
- 134
- Part D claims, 2024
- 496
- Hospital affiliations
- 1
- Industry payments
- $604
- Practice address
- 1900 Silver Cross Blvd, New Lenox, IL 60451
- Practice phone
- Call (815) 300-1100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Steven John Antonini is a pediatrician in New Lenox, Illinois
Dr. Antonini practices at Silver Cross Hospital in New Lenox, Illinois, part of Silver Cross Hospital & Medical Centers.
Dr. Antonini's NPI, 1114004652, was assigned on November 1, 2006. Dr. Antonini graduated from Loyola University of Chicago, Stritch School of Medicine in 1986. Dr. Antonini holds Illinois license 036076951.
- NPI
- 1114004652NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9436172525
- NPI enumeration date
- November 1, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (815) 300-1100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Steven John Antonini practices at Silver Cross Hospital in New Lenox, Illinois
Dr. Antonini's primary practice is Silver Cross Hospital, at 1900 Silver Cross Blvd, New Lenox, IL 60451 in Will County. The practice phone is (815) 300-1100.
- Silver Cross Hospital1900 Silver Cross Blvd, New Lenox, IL 60451 · Will CountyPhone(815) 300-1100
Source: Dmand AI Affiliation Data
Dr. Steven John Antonini is affiliated with 3 sites of care and 2 medical groups
Dr. Antonini's primary practice is Silver Cross Hospital in New Lenox, Illinois, part of Silver Cross Hospital & Medical Centers. The medical group on file is Premier Occupational Health at Silver Cross. Dmand AI also links Dr. Antonini to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Steven John Antonini's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Antonini practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Silver Cross Hospital | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Silver Cross Hospital & Medical Centers and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Steven John Antonini is one of 2,423 pediatricians in Illinois
Pediatrics is Dr. Antonini's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Antonini is licensed in Illinois.
Specialties and state licenses
- Pediatrics, IllinoisPrimary
Pediatricians near Dr. Antonini
Counts of pediatricians 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. Steven John Antonini billed Medicare for 485 services in 2024
CMS data shows 485 Medicare services from Dr. Antonini across 9 procedure codes in 2024, for 134 Medicare patients. Medicare paid $23,523 for them. Every service was in an office.
Dr. Antonini's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1302024: 23077%
- Surgery
- 2023: 892024: 10012%
- Lab and pathology
- 2023: 792024: 755%
- Other services
- 2023: 472024: 6334%
- Tests and treatments
- 2023: 442024: 1761%
Dr. Antonini compared with the Illinois median for pediatricians, 2024
- Dr. Antonini
- Illinois median
- Medicare services
- 485vs 1603.0 times
- Medicare patients
- 134vs 8263% above
- Part D claims
- 332vs 2215.1 times
Medians across 297 pediatricians in Illinois with Dmand AI profiles that report each measure.
Dr. Antonini'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Steven John Antonini treated 134 Medicare patients in 2024, average age 73
CMS counts 134 Medicare patients who saw Dr. Antonini in 2024. The largest group is 65 to 74, with 71 patients. 75% of them have high cholesterol, and 66% have high blood pressure. Their average risk score is 0.97, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Antonini's median patient age at 19, with 47% women.
Dr. Antonini's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Antonini's Medicare patients by sex, 2024
- Women8765%
- Men4735%
Chronic conditions among Dr. Antonini's Medicare patients, 2024
- High cholesterol75%
- High blood pressure66%
- Arthritis40%
- Ischemic heart disease26%
- Diabetes23%
- Anxiety19%
- Atrial fibrillation17%
- COPD16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Antonini's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 19
Patient panel by sex, all payers
- Women47%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Steven John Antonini wrote 496 Medicare Part D claims in 2024
In 2024, Dr. Antonini wrote 496 Medicare Part D claims for 52 patients. 94% of them were for generic drugs. CMS names the drug for 332 of them, across 14 drugs with 11 or more claims each, at $2,417 in total drug cost. In 2023, CMS named 279 claims across 12 drugs.
Dr. Antonini's Part D claims by kind of drug, 2024
- Generic467 claims94%
- Brand-name29 claims6%
Dr. Antonini's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Antonini's Part D claims, 2024
- Antibiotics6%32 of 496 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2792024: 33219%
Drugs named by CMS: 14 in 2024, 12 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Steven John Antonini takes part in Medicare
Dr. Antonini accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Steven John Antonini received $604 in industry payments from 2016 to 2024
CMS Open Payments shows 32 general payments to Dr. Antonini from 17 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 88% of the total. Merck Sharp & Dohme Corporation paid the most, $89.
General payments to Dr. Antonini by program year, 2016 to 2024
General payments to Dr. Antonini by kind, 2016 to 2024
- Food and beverage$53188%
- Debt forgiveness$7412%
Companies that paid Dr. Antonini the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Steven John Antonini graduated from Loyola University of Chicago, Stritch School of Medicine
Dr. Antonini graduated from Loyola University of Chicago, Stritch School of Medicine in 1986.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Steven John Antonini's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Steven John Antonini
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. Steven John Antonini's NPI number?
Dr. Steven John Antonini's NPI number is 1114004652. It was assigned on November 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Steven John Antonini?
Dr. Steven John Antonini is a pediatrician in New Lenox, Illinois. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Steven John Antonini practice?
Dr. Antonini practices at 1900 Silver Cross Blvd, New Lenox, IL 60451. Dr. Antonini's primary practice is Silver Cross Hospital in New Lenox, Illinois, part of Silver Cross Hospital & Medical Centers. Dmand AI also links Dr. Antonini to 2 group practices and clinics and 1 medical group.
What is Dr. Steven John Antonini's office phone number?
The practice phone on file for Dr. Antonini is (815) 300-1100.
What is Dr. Steven John Antonini's medical license number?
Dr. Antonini holds Illinois license 036076951.
Which hospitals is Dr. Steven John Antonini affiliated with?
Dr. Antonini practices at Silver Cross Hospital in New Lenox, Illinois.
What medical group is Dr. Steven John Antonini part of?
Dr. Antonini is linked to Premier Occupational Health at Silver Cross. Dmand AI links Dr. Antonini to 1 more medical group.
Does Dr. Steven John Antonini accept Medicare?
Yes. CMS data shows Dr. Antonini billed Medicare for 485 services in 2024, and Dr. Antonini accepts Medicare assignment.
How many Medicare patients does Dr. Steven John Antonini see?
CMS counts 134 Medicare patients who saw Dr. Antonini in 2024, with an average age of 73.
What services does Dr. Steven John Antonini bill to Medicare?
In 2024, Dr. Antonini's most billed Medicare services were office visit, established patient (99213), surgery: heart and blood vessels (36415) and office visit, established patient (99214).
Show 4 more questionsShow fewer questions
Where did Dr. Steven John Antonini go to medical school?
Dr. Antonini graduated from Loyola University of Chicago, Stritch School of Medicine in 1986.
What drugs does Dr. Steven John Antonini prescribe most?
In 2024 Medicare Part D data, Dr. Antonini's most prescribed drugs by claims were Atorvastatin Calcium, Hydrochlorothiazide and Levothyroxine Sodium.
Has Dr. Steven John Antonini received payments from drug or device companies?
CMS Open Payments shows $604 in general payments to Dr. Antonini from 17 companies from 2016 to 2024. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Steven John Antonini been practicing?
Dr. Antonini graduated from medical school in 1986, 40 years ago.
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