Patrick O'Leary, MD
NPI 1942278890 · Cardiovascular Disease Physician · Winfield, IL
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Patrick O'Leary, MD is a Cardiovascular Disease Physician provider in Winfield, IL (NPI 1942278890).
Provider details
- NPI number
- 1942278890
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036081566 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
4,778 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,228 | $131 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 761 | $8 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 670 | $120 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 377 | $198 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 373 | $15 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 48 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 1,030 | 331 |
| Atorvastatin Calcium | 814 | 258 |
| Apixabanbrand: Eliquis | 645 | 170 |
| Rosuvastatin Calcium | 604 | 200 |
| Losartan Potassium | 513 | 160 |
| Amlodipine Besylate | 427 | 141 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,016 across 38 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-08
- Last updated
- 2022-06-17
- Certified
- 2022-06-17
Frequently asked questions
- What is Patrick O'Leary's NPI number?
- Patrick O'Leary's National Provider Identifier (NPI) is 1942278890, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Patrick O'Leary's specialty?
- Patrick O'Leary is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Patrick O'Leary located?
- Patrick O'Leary's practice location on file with NPPES is 25 N Winfield Rd, Winfield, IL 60190.
- What is Patrick O'Leary's phone number?
- The practice phone number listed in the NPPES registry for Patrick O'Leary is (630) 933-8100.
- Does Patrick O'Leary accept Medicare?
- Patrick O'Leary is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Patrick O'Leary's NPI active?
- Yes — Patrick O'Leary's NPI (1942278890) is active in the NPPES registry as of the last update on 2022-06-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.