Doctor profile · Federal record

Dr. Steven Antonini, MD

Pediatrics Physician (CMS: Pediatric Medicine) · Pediatrics Physician · Internal Medicine Physician · Mokena, IL

  • NPI 1114004652
  • Accepts Medicare
  • 40 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
21205 Owens RD Ste 3
Mokena, IL 604482023
(815) 469-2123
fax (815) 469-2149

Credentials & registration

NPPES · NUCC
NPI registered
November 2006 — 20 yrs on file
Profile last updated
March 1, 2022
Year of graduation
1986 — 40 yrs since
Specialty taxonomy
208000000X — NUCC code
State licenses (2)
Illinois #036076951 · Illinois #036-076951
Medicaid
IL #036076951

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1114004652. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
389
Distinct HCPCS
10
Medicare allowed
$23,555
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 93 34 $94
36415 Insertion of needle into vein for collection of blood sample 89 32 $8
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 60 29 $8
99214 Established patient office or other outpatient visit, 30-39 minutes 37 20 $133
96127 Assessment of emotional or behavioral problems 26 23 $5
81000 Manual urinalysis test with examination using microscope, non-automated 19 14 $4
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 19 19 $133
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 18 17 $282
G0009 Administration of pneumococcal vaccine 17 16 $32
G0008 Administration of influenza virus vaccine 11 11 $32

In context: peer comparison

Among 1 peers in this city , average services per provider: 38. This provider delivers 10× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$25
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Merck Sharp & Dohme LLC 1 $24.65

By nature of payment

Food and Beverage
$25

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
279
Patients
16
Total drug cost
$2,847
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 65 16 $711
Lisinopril Generic 31 0 $324
Levothyroxine Sodium Generic 28 0 $248
Omeprazole Generic 24 0 $138
Amlodipine Besylate Generic 23 0 $288
Hydrochlorothiazide Generic 22 0 $178
Simvastatin Generic 18 0 $200
Metformin Hcl Generic 17 0 $182
Losartan-Hydrochlorothiazide (Losartan/Hydrochlorothiazide) Brand 14 0 $76
Amoxicillin Generic 13 0 $70

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Steven Antonini's medical specialty?
Dr. Steven Antonini practices Pediatrics Physician in Mokena, IL.
Where does Dr. Steven Antonini practice?
Dr. Steven Antonini practices at 21205 Owens RD Ste 3, Mokena, IL 604482023. Office phone: 8154692123.
What is Dr. Steven Antonini's NPI?
Dr. Steven Antonini's National Provider Identifier (NPI) is 1114004652, issued by NPPES.
Does Dr. Steven Antonini accept Medicare assignment?
Yes. Dr. Steven Antonini accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Steven Antonini commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (HCPCS 85025). Source: CMS Medicare Physician & Other Practitioners file.