Frank D. Singer, M.D.
NPI 1134217961ActiveIndividual· 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: $1,067,448 for 2,343 claims, against $48,983 paid for services in 2024. Novo Nordisk Inc reported $16.27 in payments in 2025, mostly education. Lists Kapiolani Medical Center for Women & Children and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1134217961 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 10, 2006 |
| Last updated in NPPES | Oct 13, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | MD-5262 | 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 | 323 |
|---|---|
| Services billed | 1,204 across 16 procedure codes |
| Paid by Medicare | $48,983 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,343 · 5,688 30-day fills |
|---|---|
| Patients | 413 |
| Total drug cost | $1,067,448 |
| Generic share | 51% of claims |
Education and affiliations
| Graduation year | 1984 |
|---|---|
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Straub Clinic and HospitalHonolulu, HI · 419 clinicians
Hospital affiliations
- Kapiolani Medical Center for Women & ChildrenHonolulu, HI
- Pali Momi Medical CenterAiea, HI
- Straub Clinic and HospitalHonolulu, HI
- The Queens Medical CenterHonolulu, HI
Industry payments (Open Payments)
- 2025$16.27 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $16.27 | 1 |
What the 2025 payments were for
- Education$16.27 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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