Sanny K. Chan, M.D., PH.D.
NPI 1043449788ActiveIndividual· Allergy & Immunology· Santa Monica, CA
Allergy & Immunology (M.D., PH.D.) in Santa Monica, California, trained at University of California, Davis School of Medicine (class of 2007). Their prescriptions cost Medicare Part D more than their services did: $825,219 for 859 claims, against $378,186 paid for services in 2024. Csl Behring was the largest of 21 companies reporting payments in 2025, $3,486 in all, mostly food and beverage.
Overview
| NPI | 1043449788 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D., PH.D. |
| Sole proprietor | No |
| NPI issued | Jul 2, 2009 |
| Last updated in NPPES | May 17, 2021 |
| Certified by provider | May 17, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology Primary | 207K00000X | A108449 | CA |
| Allergy & Immunology | 207K00000X | 54201 | CO |
| Pediatrics | 208000000X | A108449 | CA |
| Pediatrics | 208000000X | 54201 | CO |
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 | 282 |
|---|---|
| Services billed | 21,711 across 37 procedure codes |
| Paid by Medicare | $378,186 |
Part D prescriptions in 2024
| Prescriptions (claims) | 859 · 1,544 30-day fills |
|---|---|
| Patients | 160 |
| Total drug cost | $825,219 |
| Generic share | 71% of claims |
Education and affiliations
| Medical school | University of California, Davis School of Medicine |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Allergy/Immunology |
| Secondary specialties | Pediatric Medicine |
| Telehealth | Offers telehealth |
Hospital affiliation
- Saint John's Health CenterSanta Monica, CA
Industry payments (Open Payments)
- 2025$3,486 · 140 payments from 21 companies
- 2024$2,311 · 106 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Csl Behring | $745.81 | 29 |
| Astrazeneca Pharmaceuticals LP | $498.03 | 22 |
| Genzyme Corporation | $454.77 | 14 |
| Biocryst US Sales Co., LLC | $290.80 | 12 |
| Novartis Pharmaceuticals Corporation | $264.86 | 14 |
What the 2025 payments were for
- Food and Beverage$3,400 · 138 payments
- Education$60.42 · 1 payment
- Consulting Fee$25.43 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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