Quick answers
- Does Hisami S. Hayashi accept Medicare assignment?
- Yes. Medicare's clinician data says Hisami S. Hayashi 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 Hisami S. Hayashi see?
- In 2024, CMS data shows 1,270 Original Medicare patients and 1,883 services for Hisami S. Hayashi. This counts Original Medicare only and measures volume, not quality.
- What is Hisami S. Hayashi's NPI number?
- 1316203755. 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 Hisami S. Hayashi, 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 | 1,270 |
|---|---|
| Services billed to Medicare | 1,883 |
| Different services or procedures | 94 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Ct scan head or brain without contrast (70450)573 services
- Ct scan of upper spine without contrast (72125)170 services
- Ct scan of blood vessels of neck with contrast (70498)150 services
- Ct scan of blood vessels of head with contrast (70496)139 services
- X-ray of chest, 1 view (71045)115 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%
- Arthritis56%
- Ischemic heart disease41%
- Depression41%
- Anxiety41%
Hospitals where Hisami S. Hayashi works
Medicare's Facility Affiliation Data lists Hisami S. Hayashi 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.
- Hillcrest Medical CenterTulsa, OK · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 370001
- Legacy Emanuel Medical CenterPortland, OR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 380007
- Lutheran Hospital of IndianaFort Wayne, IN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 150017
- MaineHealth Maine Medical CenterPortland, ME · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 200009
- Northern Light Eastern Maine Medical CenterBangor, ME · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 200033
Practice locations
Addresses where Hisami S. Hayashi is enrolled with Medicare (CMS data updated October 2, 2026).
- 1000 N 16th StNew Castle, IN 47362 (765) 521‑0890
- 1100 Reid PkwyRichmond, IN 47374 (765) 983‑3122
- 1185 N 1000Linton, IN 47441
- 1472 Bradley PlChula Vista, CA 91911 (260) 432‑1568
- 4017 San Remo WayTarzana, CA 91356 · Tulsa X-Ray Laboratory Inc (918) 934‑8347
Group practices
Medicare enrollment lists Hisami S. Hayashi as a member of these groups (CMS data updated October 2, 2026).
- Reid Physician Associates Inc432 clinicians in the group
- Spectrum Healthcare Partners PA308 clinicians in the group
- Ella E M Brown Charitable Circle170 clinicians in the group
- Henry County Memorial Hospital158 clinicians in the group
- Greene County General Hospital103 clinicians in the group
- Summit Radiology P C102 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in New Castle
Clinicians with the same Medicare primary specialty in New Castle, IN — not a recommendation.
Other clinicians in Reid Physician Associates Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | George Washington University School Of Medicine |
| Graduation year | 2012 (14 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1316203755 |
| 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