Quick answers
- Does Omar A. Abu Nabaa accept Medicare assignment?
- Yes. Medicare's clinician data says Omar A. Abu Nabaa 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 Omar A. Abu Nabaa see?
- In 2024, CMS data shows 245 Original Medicare patients and 869 services for Omar A. Abu Nabaa. This counts Original Medicare only and measures volume, not quality.
- What is Omar A. Abu Nabaa's NPI number?
- 1154577310. 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 Omar A. Abu Nabaa, 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 | 245 |
|---|---|
| Services billed to Medicare | 869 |
| Different services or procedures | 13 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)461 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)169 services
- Hospital discharge day management, more than 30 minutes (99239)107 services
- Critical care, first 30-74 minutes (99291)64 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)22 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%
- Arthritis65%
- Chronic kidney disease49%
- Diabetes42%
- Ischemic heart disease42%
Hospitals where Omar A. Abu Nabaa works
Medicare's Facility Affiliation Data lists Omar A. Abu Nabaa 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.
- NKC HealthNorth Kansas City, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260096
- Stormont Vail HospitalTopeka, KS · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 170086
Practice locations
Addresses where Omar A. Abu Nabaa is enrolled with Medicare (CMS data updated October 2, 2026).
- 1500 SW 10h AveTopeka, KS 66604 (785) 354‑6000
- 2700 Clay Edwards Dr, Suite 240North Kansas City, MO 64116 (816) 455‑0681
- 901 SW Garfield AveTopeka, KS 66606 (785) 354‑9591
Group practices
Medicare enrollment lists Omar A. Abu Nabaa as a member of these groups (CMS data updated October 2, 2026).
- Cotton-O'neil Clinic Revocable Trust666 clinicians in the group
- Meritas Health Corporation502 clinicians in the group
Specialties
- Hospitalistprimary
Other hospitalists in Topeka
Clinicians with the same Medicare primary specialty in Topeka, KS — not a recommendation.
Other clinicians in Cotton-O'neil Clinic Revocable Trust
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2007 (19 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154577310 |
| 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