Andrew Y. Hsing, M.D.
NPI 1790769131ActiveIndividual· Internal Medicine, Pulmonary Disease· Encinitas, CA
Internal Medicine, Pulmonary Disease (M.D.) in Encinitas, California, trained at Boston University School of Medicine (class of 2003). Their prescriptions cost Medicare Part D more than their services did: $520,348 for 700 claims, against $121,880 paid for services in 2024. Harmony Biosciences LLC was the largest of 22 companies reporting payments in 2025, $3,076 in all, mostly food and beverage.
Overview
| NPI | 1790769131 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 30, 2005 |
| Last updated in NPPES | Mar 17, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | A127271 | CA |
| Internal Medicine, Critical Care Medicine | 207RC0200X | A127271 | CA |
| Internal Medicine, Sleep Medicine | 207RS0012X | A127271 | CA |
| Internal Medicine | 207R00000X | A127271 | 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 - Pulmonary Disease (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 647 |
|---|---|
| Services billed | 1,300 across 19 procedure codes |
| Paid by Medicare | $121,880 |
Part D prescriptions in 2024
| Prescriptions (claims) | 700 · 1,023 30-day fills |
|---|---|
| Patients | 140 |
| Total drug cost | $520,348 |
Education and affiliations
| Medical school | Boston University School of Medicine |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists), Sleep Medicine |
| Telehealth | Offers telehealth |
Medical groups
- United Medical DoctorsMurrieta, CA · 173 clinicians
- Scott A Eisman MD IncVista, CA · 13 clinicians
Industry payments (Open Payments)
- 2025$3,076 · 140 payments from 22 companies
- 2024$3,745 · 105 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Harmony Biosciences LLC | $444.02 | 15 |
| Glaxosmithkline, LLC. | $369.47 | 24 |
| Avadel Cns Pharmaceuticals, LLC | $298.39 | 12 |
| Regeneron Healthcare Solutions, Inc. | $292.86 | 8 |
| Grifols USA, LLC | $238.39 | 13 |
What the 2025 payments were for
- Food and Beverage$2,723 · 136 payments
- Education$203.43 · 3 payments
- Consulting Fee$150.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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