Natsumi Hamahata, MD
NPI 1629507264ActiveIndividual· Internal Medicine, Critical Care Medicine· Honolulu, HI
Internal Medicine, Critical Care Medicine (MD) with Aloha Critical Care Associates LLP, practicing in Honolulu, Hawaii. Medicare paid $39,489 for services to 111 patients in 2024. Abbvie Inc. was the largest of 2 companies reporting payments in 2025, $56.27 in all, mostly food and beverage. Lists Pali Momi Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1629507264 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 7, 2017 |
| Last updated in NPPES | May 8, 2023 |
| Certified by provider | May 8, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Critical Care Medicine Primary | 207RC0200X | MD-21205 | HI |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Critical Care (Intensivists) (HI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 111 |
|---|---|
| Services billed | 340 across 15 procedure codes |
| Paid by Medicare | $39,489 |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Critical Care (Intensivists) |
| Telehealth | Offers telehealth |
Medical group
- Aloha Critical Care Associates LLPHonolulu, HI · 13 clinicians
Hospital affiliations
- Pali Momi Medical CenterAiea, HI
- Straub Clinic and HospitalHonolulu, HI
- Wilcox Memorial HospitalLihue, HI
Industry payments (Open Payments)
- 2025$56.27 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $32.46 | 2 |
| Abiomed | $23.81 | 1 |
What the 2025 payments were for
- Food and Beverage$56.27 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Critical Care Medicine providers in Honolulu
- 1831895580
- 1245286772
- 1962804567
- 1720061625
- 1003159211
- 1609262435
- 1417918798
- 1649512724
- 1457414724
- 1922168764
- 1992047294
- 1205925369
All Internal Medicine, Critical Care Medicine providers in Hawaii →