Serena Zhao Yang-Loudin, MD
NPI 1649613365ActiveIndividual· Urology· Stanford, CA
Urology (MD) with Stanford Health Care, practicing in Stanford, California. In 2024 Medicare paid $215,820 for 361 patients, and Part D covered 1,618 of their prescriptions, 74% of them generic. Boston Scientific Corporation was the largest of 14 companies reporting payments in 2025, $809.27 in all, mostly food and beverage. Lists Eden Medical Center and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1649613365 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 11, 2013 |
| Last updated in NPPES | Sep 2, 2025 |
| Certified by provider | Sep 2, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Urology Primary | 208800000X | A156420 | 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 - Urology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 361 |
|---|---|
| Services billed | 8,305 across 79 procedure codes |
| Paid by Medicare | $215,820 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,618 · 2,980 30-day fills |
|---|---|
| Patients | 388 |
| Total drug cost | $312,609 |
| Generic share | 74% of claims |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Urology |
| Telehealth | Offers telehealth |
Medical group
- Stanford Health CareStanford, CA · 3,122 clinicians
Hospital affiliations
- Eden Medical CenterCastro Valley, CA
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
- Stanford Health CareStanford, CA
- Stanford Health Care Tri-ValleyPleasanton, CA
Industry payments (Open Payments)
- 2025$809.27 · 23 payments from 14 companies
- 2024$1,781 · 62 payments from 20 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $162.26 | 2 |
| Valencia Technologies Corporation | $147.02 | 2 |
| Bluewind Medical | $115.86 | 3 |
| Verity Pharmaceuticals Inc. | $61.84 | 3 |
| Janssen Biotech, Inc. | $58.64 | 2 |
What the 2025 payments were for
- Food and Beverage$757.74 · 22 payments
- Travel and Lodging$51.53 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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