Quick answers
- Does Timothy R. Wysozan accept Medicare assignment?
- Yes. Medicare's clinician data says Timothy R. Wysozan 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 Timothy R. Wysozan see?
- In 2024, CMS data shows 2,373 Original Medicare patients and 5,345 services for Timothy R. Wysozan. This counts Original Medicare only and measures volume, not quality.
- What is Timothy R. Wysozan's NPI number?
- 1992202717. 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 Timothy R. Wysozan, 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 | 2,373 |
|---|---|
| Services billed to Medicare | 5,345 |
| Different services or procedures | 41 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)3,301 services
- Immunologic analysis technique on serum (immunofixation) (86334)297 services
- Protein measurement, serum (84165)296 services
- Special stained specimen slides to examine tissue, each additional procedure (88341)274 services
- Pathology examination of tissue using a microscope, moderately low complexity (88304)240 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 pressure71%
- Arthritis45%
- Ischemic heart disease28%
- Diabetes25%
- Chronic kidney disease24%
Hospitals where Timothy R. Wysozan works
Medicare's Facility Affiliation Data lists Timothy R. Wysozan 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.
- Edward HospitalNaperville, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140231
- Elmhurst Memorial HospitalElmhurst, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140200
- Northwestern Medicine Central Dupage HospitalWinfield, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140242
- Swedish HospitalChicago, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140114
Practice locations
Addresses where Timothy R. Wysozan is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.
- 1206 E 9th St, Suite 200aLockport, IL 60441 (630) 527‑3000
- 1220 Hobson Rd, Suite 204Naperville, IL 60540 (630) 416‑7766
- 1220 Hobson Rd, Suite 244Naperville, IL 60540 (630) 527‑3000
- 2155 City Gate Ln, Suite 115Naperville, IL 60563 (630) 946‑2100
- 30 Stratford DrBloomingdale, IL 60108 (630) 893‑2210
Group practices
Medicare enrollment lists Timothy R. Wysozan as a member of these groups (CMS data updated October 2, 2026).
- Dupage Medical Group Ltd1,322 clinicians in the group
- Oak Dermatology LLC21 clinicians in the group
- Associated Pathologists and Laboratory Physicians LLC13 clinicians in the group
- Laboratory and Pathology Diagnostics LLC13 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Lockport
Clinicians with the same Medicare primary specialty in Lockport, IL — not a recommendation.
Other clinicians in Dupage Medical Group Ltd
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Western Michigan Un Homer Stryker School Of Med |
| Graduation year | 2018 (8 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1992202717 |
| 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