Kamonkiat Wirunsawanya, M.D.
NPI 1639552599ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Honolulu, HI
Internal Medicine, Endocrinology, Diabetes & Metabolism (M.D.) with Straub Clinic and Hospital, practicing in Honolulu, Hawaii. Their prescriptions cost Medicare Part D more than their services did: $1,880,084 for 3,422 claims, against $116,541 paid for services in 2024. Esperion Therapeutics, Inc. was the largest of 3 companies reporting payments in 2025, $304.40 in all, mostly food and beverage. Lists Adventist Health Castle and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1639552599 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 9, 2015 |
| Last updated in NPPES | Jul 22, 2020 |
| Certified by provider | Jul 22, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | MD-21031 | HI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Endocrinology (HI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 419 |
|---|---|
| Services billed | 3,826 across 17 procedure codes |
| Paid by Medicare | $116,541 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,422 · 8,582 30-day fills |
|---|---|
| Patients | 636 |
| Total drug cost | $1,880,084 |
| Generic share | 57% of claims |
Education and affiliations
| Graduation year | 2012 |
|---|---|
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Straub Clinic and HospitalHonolulu, HI · 419 clinicians
Hospital affiliations
- Adventist Health CastleKailua, HI
- Kapiolani Medical Center for Women & ChildrenHonolulu, HI
- Pali Momi Medical CenterAiea, HI
- Straub Clinic and HospitalHonolulu, HI
- Wilcox Memorial HospitalLihue, HI
Industry payments (Open Payments)
- 2025$304.40 · 3 payments from 3 companies
- 2024$535.81 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Esperion Therapeutics, Inc. | $121.09 | 1 |
| Amgen Inc. | $114.50 | 1 |
| Mannkind Corporation | $68.81 | 1 |
What the 2025 payments were for
- Food and Beverage$304.40 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 24 endocrinologists in Honolulu · All endocrinologists in Hawaii