Quick answers
- Does Nicholas S. Lysak accept Medicare assignment?
- Yes. Medicare's clinician data says Nicholas S. Lysak 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 Nicholas S. Lysak see?
- In 2024, CMS data shows 236 Original Medicare patients and 654 services for Nicholas S. Lysak. This counts Original Medicare only and measures volume, not quality.
- What is Nicholas S. Lysak's NPI number?
- 1477972297. 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 Nicholas S. Lysak, 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 | 236 |
|---|---|
| Services billed to Medicare | 654 |
| Different services or procedures | 77 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)202 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)74 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)50 services
- Ultrasound study of one arm or leg veins with compression and maneuvers (93971)25 services
- Ultrasound study of arm or leg veins with compression and maneuvers (93970)19 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%
- Ischemic heart disease53%
- Diabetes51%
- Chronic kidney disease50%
- Arthritis49%
Hospitals where Nicholas S. Lysak works
Medicare's Facility Affiliation Data lists Nicholas S. Lysak 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.
- Advocate Good Samaritan HospitalDowners Grove, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140288
- Advocate Illinois Masonic Medical CenterChicago, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140182
- Advocate Lutheran General HospitalPark Ridge, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140223
- Advocate Trinity HospitalChicago, IL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 140048
Practice locations
Addresses where Nicholas S. Lysak is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 1775 Dempster StPark Ridge, IL 60068
- 214 McHenry RdBuffalo Grove, IL 60089 (847) 459‑1160
- 3000 N Halsted St, Suite 820Chicago, IL 60657 (773) 296‑7150
- 3815 Highland AveDowners Grove, IL 60515
- 836 W Wellington, Suite G346Chicago, IL 60657 (773) 296‑7147
Group practices
Medicare enrollment lists Nicholas S. Lysak as a member of this group (CMS data updated October 2, 2026).
- Advocate Health and Hospitals Corporation3,118 clinicians in the group
Specialties
- Vascular Surgeryprimary
Other vascular surgeons in Park Ridge
Clinicians with the same Medicare primary specialty in Park Ridge, IL — not a recommendation.
Other clinicians in Advocate Health and Hospitals Corporation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Emory University School Of Medicine |
| Graduation year | 2014 (12 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1477972297 |
| 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