Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Cardiovascular Disease (Cardiology)

Kathleen A. Ward, MD

Works at hospitals in Winfield, IL · Oak Park, IL · La Grange, IL · Illinois

Summary

Dr. Kathleen A. Ward, MD is a cardiologist at 408 Madison St, Oak Park, IL 60302. Phone: (708) 710-2313. Accepts Medicare assignment. In 2024, Kathleen A. Ward had 23 Original Medicare patients and 60 services. NPI 1861501728. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Kathleen A. Ward, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Kathleen A. Ward accept Medicare assignment?
Yes. Medicare's clinician data says Kathleen A. Ward accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Kathleen A. Ward see?
In 2024, CMS data shows 23 Original Medicare patients and 60 services for Kathleen A. Ward. This counts Original Medicare only and measures volume, not quality.
What is Kathleen A. Ward's NPI number?
1861501728. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Kathleen A. Ward, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients23
Services billed to Medicare60
Different services or procedures6
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)52 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • Arthritis75%
  • High cholesterol74%
  • Diabetes48%

Hospitals where Kathleen A. Ward works

Medicare's Facility Affiliation Data lists Kathleen A. Ward at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Kathleen A. Ward is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in Illinois →

Other cardiologists in Oak Park

Clinicians with the same Medicare primary specialty in Oak Park, IL — not a recommendation.

All cardiologists in Oak Park →

Clinician information

CredentialMD
Medical schoolLoyola University Of Chicago, Stritch School Of Medicine
Graduation year1984 (42 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1861501728
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians