Anne C. Chiang, MD
NPI 1073619490ActiveIndividual· Internal Medicine, Medical Oncology· New Haven, CT
Internal Medicine, Medical Oncology (MD) in New Haven, Connecticut, trained at Js Weill Medical College, Cornell University (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $120,143 for 107 claims, against $24,861 paid for services in 2024. Merck Sharp & Dohme LLC was the largest of 10 companies reporting payments in 2025, $42,030 in all, mostly consulting fees.
Overview
| NPI | 1073619490 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 15, 2006 |
| Last updated in NPPES | Mar 7, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | 046835 | CT |
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 - Medical Oncology (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 82 |
|---|---|
| Services billed | 247 across 10 procedure codes |
| Paid by Medicare | $24,861 |
Part D prescriptions in 2024
| Prescriptions (claims) | 107 · 170 30-day fills |
|---|---|
| Patients | 42 |
| Total drug cost | $120,143 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | Js Weill Medical College, Cornell University |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Medical Oncology |
| Telehealth | Offers telehealth |
Medical group
- Yale UniversityNew Haven, CT · 2,645 clinicians
Hospital affiliation
- Yale-New Haven HospitalNew Haven, CT
Industry payments (Open Payments)
- 2025$42,030 · 30 payments from 10 companies
- 2024$38,676 · 23 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $12,021 | 8 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $6,598 | 2 |
| Abbvie Inc. | $6,570 | 3 |
| Astrazeneca Pharmaceuticals LP | $5,451 | 4 |
| Eli Lilly and Company | $4,438 | 3 |
What the 2025 payments were for
- Consulting Fee$39,713 · 13 payments
- Travel and Lodging$1,674 · 6 payments
- Food and Beverage$643.88 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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