Tiane Dai, MD
NPI 1457643751ActiveIndividual· Internal Medicine, Nephrology· Torrance, CA
Internal Medicine, Nephrology (MD) with Prohealth Partners, A Medical Group, practicing in Torrance, California. In 2024 Medicare paid $133,937 for 97 patients, and Part D covered 639 of their prescriptions, 86% of them generic. Merck Sharp & Dohme LLC was the largest of 6 companies reporting payments in 2025, $398.31 in all, mostly food and beverage. Lists Lac/Harbor-Ucla Med Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1457643751 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 5, 2011 |
| Last updated in NPPES | Jul 15, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | A114216 | CA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 97 |
|---|---|
| Services billed | 755 across 11 procedure codes |
| Paid by Medicare | $133,937 |
Part D prescriptions in 2024
| Prescriptions (claims) | 639 · 1,045 30-day fills |
|---|---|
| Patients | 54 |
| Total drug cost | $139,114 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 1988 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical group
- Prohealth Partners, A Medical GroupLong Beach, CA · 239 clinicians
Hospital affiliations
- Lac/Harbor-Ucla Med CenterTorrance, CA
- Martin Luther King, Jr. Community HospitalLos Angeles, CA
Other facilities
- Davita Harbor UCLADialysis facility · Torrance, CA
- Davita Harbor Vermont Home TrainingDialysis facility · Torrance, CA
- Davita Kenneth Hahn Plaza Dialysis CenterDialysis facility · Los Angeles, CA
- Davita Long Beach HarborDialysis facility · Long Beach, CA
- Usrc Carson DialysisDialysis facility · Carson, CA
Industry payments (Open Payments)
- 2025$398.31 · 15 payments from 6 companies
- 2024$258.73 · 11 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $143.01 | 8 |
| Calliditas Therapeutics US Inc. | $98.35 | 1 |
| Aurinia Pharma U.S., Inc. | $78.31 | 3 |
| Takeda Pharmaceuticals U.S.A., Inc. | $32.92 | 1 |
| Bayer Healthcare Pharmaceuticals Inc. | $25.63 | 1 |
What the 2025 payments were for
- Food and Beverage$398.31 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Nephrology providers in Torrance
- 1225015944
- 1053499582
- 1255760948
- 1558872440
- 1497759104
- 1801194006
- 1376674689
- 1336548700
- 1467431122
- 1033137633
- 1407835978
- 1356344683