Xiao Chloe Wan, MD
NPI 1295099042ActiveIndividual· Allergy & Immunology· Menlo Park, CA
Allergy & Immunology (MD) in Menlo Park, California, trained at University of Pittsburgh School of Medicine (class of 2012). Their prescriptions cost Medicare Part D more than their services did: $328,087 for 505 claims, against $204,505 paid for services in 2024. Novartis Pharmaceuticals Corporation reported $46.41 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1295099042 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 26, 2012 |
| Last updated in NPPES | Apr 12, 2024 |
| Certified by provider | Apr 12, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology Primary | 207K00000X | A135680 | CA |
| Internal Medicine | 207R00000X | A135680 | 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 - Allergy/Immunology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 163 |
|---|---|
| Services billed | 9,300 across 28 procedure codes |
| Paid by Medicare | $204,505 |
Part D prescriptions in 2024
| Prescriptions (claims) | 505 · 748 30-day fills |
|---|---|
| Patients | 160 |
| Total drug cost | $328,087 |
| Generic share | 56% of claims |
Education and affiliations
| Medical school | University of Pittsburgh School of Medicine |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Allergy/Immunology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- University Healthcare AlliancePleasanton, CA · 327 clinicians
Hospital affiliation
- Stanford Health CareStanford, CA
Industry payments (Open Payments)
- 2025$46.41 · 2 payments from 1 company
- 2024$306.92 · 6 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $46.41 | 2 |
What the 2025 payments were for
- Food and Beverage$46.41 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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