Quick answers
- Does Linda Sizemore accept Medicare assignment?
- Yes. Medicare's clinician data says Linda Sizemore 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 Linda Sizemore see?
- In 2024, CMS data shows 20 Original Medicare patients and 350 services for Linda Sizemore. This counts Original Medicare only and measures volume, not quality.
- What is Linda Sizemore's NPI number?
- 1225123284. 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 Linda Sizemore, 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 | 20 |
|---|---|
| Services billed to Medicare | 350 |
| Different services or procedures | 4 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Psychotherapy, 45 minutes (90834)327 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%
- Arthritis70%
- Depression70%
- Anxiety65%
Practice locations
Addresses where Linda Sizemore is enrolled with Medicare (CMS data updated October 2, 2026).
- 3360 Brook RdHighland Park, IL 60035 (847) 433‑5596
Specialties
- Clinical Psychologistprimary
Other clinical psychologists in Highland Park
Clinicians with the same Medicare primary specialty in Highland Park, IL — not a recommendation.
Clinician information
| Graduation year | 1975 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1225123284 |
| 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
- 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