Lei Thandar Win, M.D
NPI 1124436001ActiveIndividual· Internal Medicine, Nephrology· Long Beach, CA
Internal Medicine, Nephrology (M.D) with Healthcare Partners Affiliates Medical Group and 1 other group, practicing in Long Beach, California. Their prescriptions cost Medicare Part D more than their services did: $260,930 for 1,555 claims, against $129,083 paid for services in 2024. Novartis Pharmaceuticals Corporation was the largest of 2 companies reporting payments in 2025, $101.14 in all, mostly food and beverage. Lists College Medical Center and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1124436001 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D |
| Sole proprietor | Yes |
| NPI issued | Jul 23, 2014 |
| Last updated in NPPES | Apr 18, 2026 |
| Certified by provider | Apr 18, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | A145310 | CA |
| Internal Medicine | 207R00000X | A145310 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 255 |
|---|---|
| Services billed | 1,261 across 27 procedure codes |
| Paid by Medicare | $129,083 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,555 · 3,259 30-day fills |
|---|---|
| Patients | 234 |
| Total drug cost | $260,930 |
| Generic share | 79% of claims |
Education and affiliations
| Graduation year | 2007 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Healthcare Partners Affiliates Medical GroupAnaheim, CA · 754 clinicians
- Coast Nephrology Medical Group Inc.Long Beach, CA · 7 clinicians
Hospital affiliations
- College Medical CenterLong Beach, CA
- Memorialcare Long Beach Medical CenterLong Beach, CA
- St Mary Medical CenterLong Beach, CA
- Uci Health-OrangeOrange, CA
Other facilities
- Davita El Dorado DialysisDialysis facility · Long Beach, CA
- Davita Los Alamitos DialysisDialysis facility · Los Alamitos, CA
- Usrc West Coast DialysisDialysis facility · Long Beach, CA
Industry payments (Open Payments)
- 2025$101.14 · 4 payments from 2 companies
- 2024$82.60 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $81.37 | 3 |
| Astrazeneca Pharmaceuticals LP | $19.77 | 1 |
What the 2025 payments were for
- Food and Beverage$101.14 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 30 nephrologists in Long Beach · All nephrologists in California