Quick answers
- Does Atsuko Yamahiro accept Medicare assignment?
- Yes. Medicare's clinician data says Atsuko Yamahiro 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 Atsuko Yamahiro see?
- In 2024, CMS data shows 73 Original Medicare patients and 150 services for Atsuko Yamahiro. This counts Original Medicare only and measures volume, not quality.
- What is Atsuko Yamahiro's NPI number?
- 1730524653. 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 Atsuko Yamahiro, 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 | 73 |
|---|---|
| Services billed to Medicare | 150 |
| Different services or procedures | 20 |
| Participating Medicare provider | Yes |
| Average age of these patients | 66 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)46 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)37 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 pressure70%
- High cholesterol70%
- Diabetes42%
- Arthritis33%
- Depression29%
- Anxiety27%
Hospitals where Atsuko Yamahiro works
Medicare's Facility Affiliation Data lists Atsuko Yamahiro 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.
- Uconn Health Waterbury HospitalWaterbury, CT · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 070005
Practice locations
Addresses where Atsuko Yamahiro is enrolled with Medicare (CMS data updated October 2, 2026).
- 160 Robbins StWaterbury, CT 06708 (203) 573‑7284
- 428 Columbus AveNew Haven, CT 06519 (203) 503‑3228
- 64 Robbins StWaterbury, CT 06708 (203) 573‑6263
Group practices
Medicare enrollment lists Atsuko Yamahiro as a member of these groups (CMS data updated October 2, 2026).
- Prospect Ct Medical Foundation Inc282 clinicians in the group
- Cornell Scott Hill Health Corporation271 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Waterbury
Clinicians with the same Medicare primary specialty in Waterbury, CT — not a recommendation.
Other clinicians in Prospect Ct Medical Foundation Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Northwestern University Feinberg Medical School |
| Graduation year | 2013 (13 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1730524653 |
| 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