Quick answers
- Does Margaret Wierzbicki accept Medicare assignment?
- Yes. Medicare's clinician data says Margaret Wierzbicki 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 Margaret Wierzbicki see?
- In 2024, CMS data shows 187 Original Medicare patients and 513 services for Margaret Wierzbicki. This counts Original Medicare only and measures volume, not quality.
- What is Margaret Wierzbicki's NPI number?
- 1679933311. 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 Margaret Wierzbicki, 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 | 187 |
|---|---|
| Services billed to Medicare | 513 |
| Different services or procedures | 24 |
| Participating Medicare provider | Yes |
| Average age of these patients | 79 |
Most frequent services
- Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)204 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)81 services
- Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and (G0180)34 services
- Residence visit for new patient with moderate level of medical decision making, per day, if using time, at least 60 minutes (99344)26 services
- Advance care planning, first 30 minutes (99497)26 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 cholesterol75%
- Arthritis66%
- Diabetes64%
- Chronic kidney disease40%
- Depression38%
Hospitals where Margaret Wierzbicki works
Medicare's Facility Affiliation Data lists Margaret Wierzbicki 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.
- Northwest Community Hospital 1Arlington Heights, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140252
- Northwestern Medicine Central Dupage HospitalWinfield, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140242
Practice locations
Addresses where Margaret Wierzbicki is enrolled with Medicare (CMS data updated October 2, 2026).
- 2003 W Fulton St, Suite 303Chicago, IL 60612 (312) 243‑2223
Group practices
Medicare enrollment lists Margaret Wierzbicki as a member of this group (CMS data updated October 2, 2026).
- MD @ Home Illinois, SC51 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Other clinicians in MD @ Home Illinois, SC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2015 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1679933311 |
| 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