Yi An, MD
NPI 1669714739ActiveIndividual· Radiology, Radiation Oncology· New Haven, CT
Radiology, Radiation Oncology (MD) in New Haven, Connecticut, trained at Stanford University School of Medicine (class of 2013). 369 Medicare patients in 2024, $130,361 paid; nearly all of their 210 Part D prescriptions were generic (94%). Bayer Healthcare Pharmaceuticals Inc. reported $203.38 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1669714739 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Mar 26, 2013 |
| Last updated in NPPES | Apr 3, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Radiation Oncology Primary | 2085R0001X | 59994 | CT |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Radiation Oncology (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 369 |
|---|---|
| Services billed | 1,535 across 21 procedure codes |
| Paid by Medicare | $130,361 |
Part D prescriptions in 2024
| Prescriptions (claims) | 210 · 499 30-day fills |
|---|---|
| Patients | 96 |
| Total drug cost | $41,664 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | Stanford University School of Medicine |
|---|---|
| Graduation year | 2013 |
| Medicare specialty | Radiation Oncology |
| Telehealth | Offers telehealth |
Medical group
- Yale UniversityNew Haven, CT · 2,645 clinicians
Hospital affiliations
- Bridgeport HospitalBridgeport, CT
- Yale-New Haven HospitalNew Haven, CT
Industry payments (Open Payments)
- 2025$203.38 · 5 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bayer Healthcare Pharmaceuticals Inc. | $203.38 | 5 |
What the 2025 payments were for
- Food and Beverage$203.38 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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