Quick answers
- Does Joelle Biernacki accept Medicare assignment?
- Yes. Medicare's clinician data says Joelle Biernacki 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 Joelle Biernacki see?
- In 2024, CMS data shows 1,910 Original Medicare patients and 3,362 services for Joelle Biernacki. This counts Original Medicare only and measures volume, not quality.
- What is Joelle Biernacki's NPI number?
- 1427142751. 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 Joelle Biernacki, 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 patients | 1,910 |
|---|---|
| Services billed to Medicare | 3,362 |
| Different services or procedures | 109 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Screening 3d breast mammography (77063)614 services
- Screening mammography (77067)614 services
- Dxa bone density measurement of hip, pelvis, spine (77080)510 services
- Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) (G0279)188 services
- X-ray of chest, 1 view (71045)155 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 cholesterol75%
- High blood pressure72%
- Arthritis54%
- Depression29%
- Anxiety29%
- Diabetes27%
Hospitals where Joelle Biernacki works
Medicare's Facility Affiliation Data lists Joelle Biernacki 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.
- Barnes Jewish HospitalSaint Louis, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260032
- Barnes-Jewish St Peters HospitalSaint Peters, MO · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 260191
- Christian Hospital NortheastSaint Louis, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260180
- Missouri Baptist Medical CenterSaint Louis, MO · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 260108
- Progress West HospitalOfallon, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260219
Practice locations
Addresses where Joelle Biernacki is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 10; the Medicare profile lists all.
- 10 Hospital DrSaint Peters, MO 63376 (636) 916‑9000
- 11133 Dunn RdSaint Louis, MO 63136
- 1225 Graham RdFlorissant, MO 63031
- 1520 Wentzville Pkwy, Suite 200Wentzville, MO 63385 (636) 497‑4035
- 15830 Fountain Plaza DrChesterfield, MO 63017 (314) 996‑5170
Group practices
Medicare enrollment lists Joelle Biernacki as a member of these groups (CMS data updated October 2, 2026).
- Washington University3,029 clinicians in the group
- BJC Outpatient Imaging LLC25 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Missouri
Clinicians with the same Medicare primary specialty in Missouri — not a recommendation.
Other clinicians in Washington University
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Missouri, Kansas City, School Of Medicine |
| Graduation year | 1989 (37 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1427142751 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians