Tiffany C. Wong, M.D.
NPI 1174943344ActiveIndividual· Internal Medicine, Nephrology· Honolulu, HI
Internal Medicine, Nephrology (M.D.) in Honolulu, Hawaii, trained at George Washington University School of Medicine (class of 2014). Their prescriptions cost Medicare Part D more than their services did: $300,711 for 2,438 claims, against $22,410 paid for services in 2024. Calliditas Therapeutics US Inc. was the largest of 3 companies reporting payments in 2025, $391.45 in all, mostly food and beverage.
Overview
| NPI | 1174943344 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 25, 2014 |
| Last updated in NPPES | May 7, 2021 |
| Certified by provider | May 7, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | MD458103 | PA |
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 (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 72 |
|---|---|
| Services billed | 254 across 13 procedure codes |
| Paid by Medicare | $22,410 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,438 · 6,110 30-day fills |
|---|---|
| Patients | 395 |
| Total drug cost | $300,711 |
| Generic share | 81% of claims |
Education and affiliations
| Medical school | George Washington University School of Medicine |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical group
- Hawaii Permanente Medical Group IncHonolulu, HI · 704 clinicians
Hospital affiliation
- Kaiser Foundation HospitalHonolulu, HI
Other facilities
- Liberty Dialysis Hawaii - Leeward Dialysis FacilityDialysis facility · Ewa Beach, HI
- Usrc Pearlridge DialysisDialysis facility · Aiea, HI
Industry payments (Open Payments)
- 2025$391.45 · 3 payments from 3 companies
- 2024$568.81 · 4 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Calliditas Therapeutics US Inc. | $142.50 | 1 |
| Apellis Pharmaceuticals, Inc. | $137.27 | 1 |
| Sanofi-Aventis U.S. LLC | $111.68 | 1 |
What the 2025 payments were for
- Food and Beverage$391.45 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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