Quick answers
- Does Marie H. Okoniewski accept Medicare assignment?
- Yes. Medicare's clinician data says Marie H. Okoniewski 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.
- What is Marie H. Okoniewski's NPI number?
- 1437655016. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marie H. Okoniewski works
Medicare's Facility Affiliation Data lists Marie H. Okoniewski 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.
- University of Kansas HospitalKansas City, KS · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 170040
Practice locations
Addresses where Marie H. Okoniewski is enrolled with Medicare (CMS data updated October 2, 2026).
- 2650 Shawnee Mission PkwyWestwood, KS 66205 (913) 588‑7750
- 4000 Cambridge StKansas City, KS 66160 (913) 588‑5000
Group practices
Medicare enrollment lists Marie H. Okoniewski as a member of this group (CMS data updated October 2, 2026).
- University of Kansas Hospital Authority250 clinicians in the group
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists in Westwood
Clinicians with the same Medicare primary specialty in Westwood, KS — not a recommendation.
Other clinicians in University of Kansas Hospital Authority
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Kansas City University Of Med & Biosciences, College Of Osteo Med |
| Graduation year | 2018 (8 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1437655016 |
| 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
- 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