Doctor profile · Federal record

Dr. PATRICK O'LEARY, MD

Cardiovascular Disease Physician (CMS: CARDIOVASCULAR DISEASE (CARDIOLOGY)) · WINFIELD, IL

  • NPI 1942278890
  • Accepts Medicare
  • 38 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
25 N WINFIELD RD, STE 300
WINFIELD, IL 60190
(630) 933-8100
Mailing address
1860 PAYSPHERE CIR
CHICAGO, IL 606740018

Credentials & registration

NPPES · NUCC
NPI registered
March 2006 — 20 yrs on file
Profile last updated
June 17, 2022
Year of graduation
1988 — 38 yrs since
Specialty taxonomy
207RC0000X — NUCC code
State license (1)
Illinois #036081566
Medicaid
IL #036081566

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1942278890. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
5,002
Distinct HCPCS
10
Medicare allowed
$425,647
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 1,148 797 $133
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 908 750 $8
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 649 254 $122
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 418 406 $203
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 377 360 $15
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 252 229 $178
36415 Insertion of needle into vein for collection of blood sample 201 155 $8
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 153 152 $69
80061 Blood test, lipids (cholesterol and triglycerides) 129 116 $13
99204 New patient office or other outpatient visit, 45-59 minutes 112 112 $171

In context: peer comparison

Among 6 peers in this city , average services per provider: 173. This provider delivers 29× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,016
Transactions
38
Manufacturers
13
Payer (manufacturer) Industry Txns Amount
Medtronic, Inc. 4 $409.20
Novartis Pharmaceuticals Corporation 16 $186.51
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) 4 $82.31
E.R. Squibb & Sons, L.L.C. 3 $67.96
Boehringer Ingelheim Pharmaceuticals, Inc. 2 $63.87
SCPHARMACEUTICALS INC. 2 $40.13
SANOFI-AVENTIS U.S. LLC 1 $33.28
Kestra Medical Technology Services, Inc. 1 $32.34
PFIZER INC. 1 $24.90
Abbott Laboratories 1 $24.68
Esperion Therapeutics, Inc. 1 $19.80
Amgen Inc. 1 $17.76
AstraZeneca Pharmaceuticals LP 1 $13.20

By nature of payment

Food and Beverage
$651
Travel and Lodging
$365

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
5,594
Patients
1,898
Total drug cost
$798,944
Drug Type Claims Patients Total cost
Metoprolol Succinate Generic 809 278 $17,188
Atorvastatin Calcium Generic 757 242 $11,867
Eliquis (Apixaban) Brand 576 156 $714,307
Losartan Potassium Generic 422 139 $6,671
Rosuvastatin Calcium Generic 392 147 $6,710
Lisinopril Generic 389 131 $4,259
Amlodipine Besylate Generic 357 128 $3,856
Carvedilol Generic 344 117 $5,551
Furosemide Generic 311 131 $2,334
Metoprolol Tartrate Generic 277 87 $3,068