Htay Win, M.D.
NPI 1881642155ActiveIndividual· Internal Medicine· Fremont, CA
Internal Medicine (M.D.) in Fremont, California, licensed in CA, with an NPI issued in May 2006. Their prescriptions cost Medicare Part D more than their services did: $1,737,850 for 23,142 claims, against $811,351 paid for services in 2024. Kowa Pharmaceuticals America, Inc. was the largest of 12 companies reporting payments in 2025, $639.53 in all, mostly food and beverage. Lists St Rose Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1881642155 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | May 5, 2006 |
| Last updated in NPPES | Dec 11, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A88638 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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 | 762 |
|---|---|
| Services billed | 8,084 across 22 procedure codes |
| Paid by Medicare | $811,351 |
Part D prescriptions in 2024
| Prescriptions (claims) | 23,142 · 37,009 30-day fills |
|---|---|
| Patients | 892 |
| Total drug cost | $1,737,850 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 1986 |
|---|---|
| Medicare specialty | Internal Medicine |
Hospital affiliations
- St Rose HospitalHayward, CA
- Washington HospitalFremont, CA
Other facilities
- A1 Pro Home Health Inc.Home health agency · San Leandro, CA
- Amore Home HealthHome health agency · Fremont, CA
- Centerwell Asian American Home HealthHome health agency · Alameda, CA
- Bristol Hospice - East BayHospice · Pleasanton, CA
- Country Drive Post AcuteNursing home · Fremont, CA
- Eden Healthcare CenterNursing home · Hayward, CA
- Fremont Healthcare CenterNursing home · Fremont, CA
- Hayward Hills Health Care CenterNursing home · Hayward, CA
- Niles Canyon Post AcuteNursing home · Fremont, CA
Industry payments (Open Payments)
- 2025$639.53 · 28 payments from 12 companies
- 2024$734.23 · 32 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Kowa Pharmaceuticals America, Inc. | $129.76 | 6 |
| Novo Nordisk Inc | $100.69 | 5 |
| Lilly USA, LLC | $81.28 | 3 |
| Bayer Healthcare Pharmaceuticals Inc. | $56.78 | 2 |
| Philips North America LLC | $50.76 | 3 |
What the 2025 payments were for
- Food and Beverage$639.53 · 28 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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