Quick answers
- Does Teresita M. Zdunek accept Medicare assignment?
- Yes. Medicare's clinician data says Teresita M. Zdunek 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 Teresita M. Zdunek see?
- In 2024, CMS data shows 240 Original Medicare patients and 846 services for Teresita M. Zdunek. This counts Original Medicare only and measures volume, not quality.
- What is Teresita M. Zdunek's NPI number?
- 1831295880. 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 Teresita M. Zdunek, 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 | 240 |
|---|---|
| Services billed to Medicare | 846 |
| Different services or procedures | 28 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)363 services
- Special stained specimen slides to examine tissue, each additional procedure (88341)88 services
- Special stained specimen slides to examine tissue, initial procedure (88342)74 services
- Cell examination of specimen, selective cellular enhancement technique (88112)41 services
- Evaluation of fine needle aspirate with interpretation and report (88173)39 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%
- Arthritis46%
- Diabetes42%
- Ischemic heart disease35%
- Chronic kidney disease35%
Hospitals where Teresita M. Zdunek works
Medicare's Facility Affiliation Data lists Teresita M. Zdunek 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.
- Presence Saint Joseph Hospital - ChicagoChicago, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140224
Practice locations
Addresses where Teresita M. Zdunek is enrolled with Medicare (CMS data updated October 2, 2026).
- 2900 N Lake Shore DrChicago, IL 60657 (773) 665‑3679
Group practices
Medicare enrollment lists Teresita M. Zdunek as a member of this group (CMS data updated October 2, 2026).
- Pathology CHP SC3 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Illinois College Of Med (chi/peor/rock/chm-Urb) |
| Graduation year | 1988 (38 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1831295880 |
| 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