Quick answers
- Does Leonel Oliveros-Rosen accept Medicare assignment?
- Yes. Medicare's clinician data says Leonel Oliveros-Rosen 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 Leonel Oliveros-Rosen see?
- In 2024, CMS data shows 93 Original Medicare patients and 288 services for Leonel Oliveros-Rosen. This counts Original Medicare only and measures volume, not quality.
- What is Leonel Oliveros-Rosen's NPI number?
- 1528591625. 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 Leonel Oliveros-Rosen, 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 | 93 |
|---|---|
| Services billed to Medicare | 288 |
| Different services or procedures | 26 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)77 services
- Insertion of needle into vein for collection of blood sample (36415)72 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)49 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)18 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)15 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 cholesterol67%
- High blood pressure65%
- Arthritis34%
- Diabetes22%
- Depression19%
- Anxiety17%
Hospitals where Leonel Oliveros-Rosen works
Medicare's Facility Affiliation Data lists Leonel Oliveros-Rosen 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.
- Overlake Hospital Medical Center & ClinicsBellevue, WA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 500051
- Virginia Mason Medical CenterSeattle, WA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 500005
Practice locations
Addresses where Leonel Oliveros-Rosen is enrolled with Medicare (CMS data updated October 2, 2026).
- 1344 Wintergreen Ln NEBainbridge Island, WA 98110 (206) 842‑5632
- 2600 Compass RdGlenview, IL 60026
Group practices
Medicare enrollment lists Leonel Oliveros-Rosen as a member of these groups (CMS data updated October 2, 2026).
- Select Rehabilitation, LLC2,046 clinicians in the group
- Virginia Mason Medical Center867 clinicians in the group
- Select Outpatient Services Inc805 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Bainbridge Island
Clinicians with the same Medicare primary specialty in Bainbridge Island, WA — not a recommendation.
Other clinicians in Select Rehabilitation, LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2017 (9 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1528591625 |
| 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