Alan C. Yao, M.D.
NPI 1053325647ActiveIndividual· Internal Medicine, Gastroenterology· Flushing, NY
Internal Medicine, Gastroenterology (M.D.) with Ae and Ly Medical Associates PLLC, practicing in Flushing, New York. Their prescriptions cost Medicare Part D more than their services did: $1,237,548 for 4,958 claims, against $85,859 paid for services in 2024. Gilead Sciences, Inc. was the largest of 4 companies reporting payments in 2025, $3,988 in all, mostly speaking and faculty fees.
Overview
| NPI | 1053325647 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 28, 2006 |
| Last updated in NPPES | Mar 21, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 204609 | NY |
| Internal Medicine | 207R00000X | 204609 | NY |
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 - Gastroenterology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 289 |
|---|---|
| Services billed | 1,335 across 46 procedure codes |
| Paid by Medicare | $85,859 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,958 · 6,219 30-day fills |
|---|---|
| Patients | 1,416 |
| Total drug cost | $1,237,548 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Ae and Ly Medical Associates PLLCFlushing, NY · 5 clinicians
Industry payments (Open Payments)
- 2025$3,988 · 19 payments from 4 companies
- 2024$7,158 · 24 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Gilead Sciences, Inc. | $3,667 | 14 |
| Intra-Sana Laboratories | $191.78 | 3 |
| Lilly USA, LLC | $109.19 | 1 |
| Celltrion USA Inc. | $20.07 | 1 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$3,240 · 2 payments
- Food and Beverage$748.08 · 17 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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