Quick answers
- Does Shunsuke Aoi accept Medicare assignment?
- Yes. Medicare's clinician data says Shunsuke Aoi 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 Shunsuke Aoi see?
- In 2024, CMS data shows 1,968 Original Medicare patients and 3,600 services for Shunsuke Aoi. This counts Original Medicare only and measures volume, not quality.
- What is Shunsuke Aoi's NPI number?
- 1447593181. 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 Shunsuke Aoi, 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 | 1,968 |
|---|---|
| Services billed to Medicare | 3,600 |
| Different services or procedures | 80 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)1,493 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)400 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)230 services
- Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)209 services
- Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist (93458)133 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 cholesterol68%
- Arthritis47%
- Ischemic heart disease45%
- Atrial fibrillation39%
- Heart failure36%
Hospitals where Shunsuke Aoi works
Medicare's Facility Affiliation Data lists Shunsuke Aoi 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.
- Billings Clinic HospitalBillings, MT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 270004
- Glendive Medical CenterGlendive, MT · Critical Access Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 271332
- Livingston HealthcareLivingston, MT · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 271317
- Powell Valley HospitalPowell, WY · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 531310
- Stillwater Billings ClinicColumbus, MT · Critical Access Hospital · Emergency services: listed by Medicare · CCN 271330
Practice locations
Addresses where Shunsuke Aoi is enrolled with Medicare (CMS data updated October 2, 2026).
- 105 5th Ave EScobey, MT 59263 (406) 487‑2296
- 201 Yellowstone AveCody, WY 82414 (307) 527‑7561
- 801 N 29th StBillings, MT 59101 (406) 238‑2500
Group practices
Medicare enrollment lists Shunsuke Aoi as a member of these groups (CMS data updated October 2, 2026).
- Billings Clinic Specialty Supplies and Services, LLC824 clinicians in the group
- Daniels Memorial Hospital21 clinicians in the group
Specialties
- Interventional Cardiologyprimary
Other interventional cardiologists in Montana
Clinicians with the same Medicare primary specialty in Montana — not a recommendation.
Other clinicians in Billings Clinic Specialty Supplies and Services, LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2008 (18 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) | 1447593181 |
| 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