Atsuko Yamahiro, M.D.
NPI 1730524653 · Internal Medicine Physician · Waterbury, CT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Atsuko Yamahiro, M.D. is a Internal Medicine Physician provider in Waterbury, CT (NPI 1730524653).
Provider details
- NPI number
- 1730524653
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
13 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
83 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 46 | $95 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 37 | $134 |
Typical Medicare-allowed amounts for these services range $95–$134 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 102 | 11 |
| Atorvastatin Calcium | 50 | 16 |
| Rosuvastatin Calcium | 39 | 18 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 30 | — |
| Amlodipine Besylate | 27 | 13 |
| Levothyroxine Sodium | 26 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$162 across 6 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-05-06
- Last updated
- 2016-04-08
Frequently asked questions
- What is Atsuko Yamahiro's NPI number?
- Atsuko Yamahiro's National Provider Identifier (NPI) is 1730524653, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Atsuko Yamahiro's specialty?
- Atsuko Yamahiro is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Atsuko Yamahiro located?
- Atsuko Yamahiro's practice location on file with NPPES is 64 Robbins St, Waterbury, CT 06708-2613.
- What is Atsuko Yamahiro's phone number?
- The practice phone number listed in the NPPES registry for Atsuko Yamahiro is (203) 573-6162.
- Does Atsuko Yamahiro accept Medicare?
- Atsuko Yamahiro is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Atsuko Yamahiro's NPI active?
- Yes — Atsuko Yamahiro's NPI (1730524653) is active in the NPPES registry as of the last update on 2016-04-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.