Quick answers
- Does Tomonori A. Oyadomari accept Medicare assignment?
- Yes. Medicare's clinician data says Tomonori A. Oyadomari 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 Tomonori A. Oyadomari see?
- In 2024, CMS data shows 394 Original Medicare patients and 1,010 services for Tomonori A. Oyadomari. This counts Original Medicare only and measures volume, not quality.
- What is Tomonori A. Oyadomari's NPI number?
- 1225441538. 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 Tomonori A. Oyadomari, 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 | 394 |
|---|---|
| Services billed to Medicare | 1,010 |
| Different services or procedures | 12 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)364 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)201 services
- Hemodialysis procedure with physician evaluation (90935)181 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)98 services
- Dialysis procedure including 1 evaluation (90945)77 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%
- Chronic kidney disease75%
- Diabetes56%
- Ischemic heart disease51%
- Heart failure47%
Hospitals where Tomonori A. Oyadomari works
Medicare's Facility Affiliation Data lists Tomonori A. Oyadomari 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.
- Hedrick Medical CenterChillicothe, MO · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 261321
- Mosaic Life Care at St JosephSaint Joseph, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260006
- Mosaic Medical Center - MaryvilleMaryville, MO · Critical Access Hospital · Emergency services: listed by Medicare · CCN 261340
- Mosaic Medical Center AlbanyAlbany, MO · Critical Access Hospital · Emergency services: listed by Medicare · CCN 261328
- Wright Memorial HospitalTrenton, MO · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 261309
Practice locations
Addresses where Tomonori A. Oyadomari is enrolled with Medicare (CMS data updated October 2, 2026).
- 1009 W Saint Maartens Dr F, Mosaic Life CareSaint Joseph, MO 64506 (816) 232‑8145
- 114 E S Hills DrMaryville, MO 64468
- 12110 Holmes RdKansas City, MO 64145 (816) 942‑3827
Group practices
Medicare enrollment lists Tomonori A. Oyadomari as a member of these groups (CMS data updated October 2, 2026).
- Heartland Regional Medical Center394 clinicians in the group
- SSM Regional Health Services166 clinicians in the group
Specialties
- Nephrologyprimary
Other nephrologists in Missouri
Clinicians with the same Medicare primary specialty in Missouri — not a recommendation.
Other clinicians in Heartland Regional Medical Center
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2013 (13 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) | 1225441538 |
| 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