Ahmed Rehan, M.D.
NPI 1700846987ActiveIndividual· Internal Medicine, Nephrology· Honolulu, HI
Internal Medicine, Nephrology (M.D.) with Hawaii Kidney Specialists LLP, practicing in Honolulu, Hawaii. Their prescriptions cost Medicare Part D more than their services did: $570,224 for 1,038 claims, against $96,306 paid for services in 2024. Mallinckrodt Hospital Products Inc. was the largest of 4 companies reporting payments in 2025, $161.75 in all, mostly food and beverage. Lists Straub Clinic and Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1700846987 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 23, 2006 |
| Last updated in NPPES | Apr 11, 2024 |
| Certified by provider | Apr 11, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | MD-21768 | HI |
| Internal Medicine, Nephrology | 207RN0300X | 5315128410 | MI |
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 - Nephrology (HI); Practitioner - Nephrology (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 251 |
|---|---|
| Services billed | 965 across 15 procedure codes |
| Paid by Medicare | $96,306 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,038 · 2,693 30-day fills |
|---|---|
| Patients | 238 |
| Total drug cost | $570,224 |
| Generic share | 71% of claims |
Education and affiliations
| Graduation year | 1976 |
|---|---|
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical group
- Hawaii Kidney Specialists LLPHonolulu, HI · 30 clinicians
Hospital affiliations
- Straub Clinic and HospitalHonolulu, HI
- The Queens Medical CenterHonolulu, HI
Other facilities
- Liberty Dialysis Hawaii - Hawaii Kai DialysisDialysis facility · Honolulu, HI
- Liberty Dialysis Hawaii - Siemsen DialysisDialysis facility · Honolulu, HI
- Usrc Pearlridge DialysisDialysis facility · Aiea, HI
Industry payments (Open Payments)
- 2025$161.75 · 6 payments from 4 companies
- 2024$353.51 · 10 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mallinckrodt Hospital Products Inc. | $57.68 | 2 |
| Novartis Pharmaceuticals Corporation | $52.02 | 2 |
| Amgen Inc. | $27.68 | 1 |
| Aurinia Pharma U.S., Inc. | $24.37 | 1 |
What the 2025 payments were for
- Food and Beverage$161.75 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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