Quick answers
- Does Sydney M. Lafrenier accept Medicare assignment?
- Yes. Medicare's clinician data says Sydney M. Lafrenier 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 Sydney M. Lafrenier see?
- In 2024, CMS data shows 13 Original Medicare patients and 16 services for Sydney M. Lafrenier. This counts Original Medicare only and measures volume, not quality.
- What is Sydney M. Lafrenier's NPI number?
- 1548083819. 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 Sydney M. Lafrenier, 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 | 13 |
|---|---|
| Services billed to Medicare | 16 |
| Different services or procedures | 6 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
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%
Hospitals where Sydney M. Lafrenier works
Medicare's Facility Affiliation Data lists Sydney M. Lafrenier 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.
- Franciscan Health DyerDyer, IN · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 150090
- Franciscan Health Olympia & Chicago HeightsOlympia Fields, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140172
Practice locations
Addresses where Sydney M. Lafrenier is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.
- 20201 Crawford AveOlympia Fields, IL 60461 (844) 740‑4445
- 20201 Crawford Ave, Suite 1276Olympia Fields, IL 60461
- 20201 S Crawford Ave, Suite 1400Olympia Fields, IL 60461 (708) 379‑2310
- 355 Ridge AveEvanston, IL 60202 (847) 316‑4000
- 3700 W 203rd StOlympia Fields, IL 60461
Group practices
Medicare enrollment lists Sydney M. Lafrenier as a member of these groups (CMS data updated October 2, 2026).
- Prime Healthcare Illinois Medical Group LLC322 clinicians in the group
- Specialty Physicians of Illinois LLC102 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Other clinicians in Prime Healthcare Illinois Medical Group LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2024 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1548083819 |
| 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