Steven F. Willey, MD

Medicare activity in 2024

Official CMS public-use data for Steven F. Willey, 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.

Most frequent services

1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)170 services
2. Influenza vaccine split virus, preservative free (90662)32 services
3. Administration of influenza virus vaccine (G0008)32 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%
• High cholesterol73%
• Arthritis41%
• Ischemic heart disease27%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)20%
• Atrial fibrillation20%

Hospitals where Steven F. Willey works

Medicare's Facility Affiliation Data lists Steven F. Willey 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.

• Mercy Hospital St LouisSaint Louis, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260020
• St Lukes HospitalChesterfield, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260179

Practice locations

Addresses where Steven F. Willey is enrolled with Medicare (CMS data updated October 2, 2026).

• 224 S Woods Mill Rd, Suite 560sChesterfield, MO 63017 (314) 469‑0033
• 7212 Balson AveSaint Louis, MO 63130

Group practices

Medicare enrollment lists Steven F. Willey as a member of this group (CMS data updated October 2, 2026).

• Aging Well Health Care, LLC238 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in Missouri →

Other internal medicine doctors in Chesterfield

Clinicians with the same Medicare primary specialty in Chesterfield, MO — not a recommendation.

• Igor I. Krits, MD
• Vaishaliben J. Ahir, MD
• Sameera Azad, MD
• Jianmei Liu, MD
• Ayesha Farrukh, MD
• Surajit Majumdar, MD
• Afshin Amini
• Kevin Montes, MD

All internal medicine doctors in Chesterfield →

Other clinicians in Aging Well Health Care, LLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Dane A. Glueck, MD
• Jeremy Talley, DO
• Allison Flammang, DO
• John W. McAllister, MD
• Cathy M. Coleman, NP
• Piotr Kulikowski, MD

Clinician information

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