David Alexander Braun, M.D., PH.D.
NPI 1477991933ActiveIndividual· Internal Medicine, Medical Oncology· Boston, MA
Internal Medicine, Medical Oncology (M.D., PH.D.) in Boston, Massachusetts, trained at Icahn School of Medicine at Mount Sinai (class of 2013). Their prescriptions cost Medicare Part D more than their services did: $824,283 for 135 claims, against $23,316 paid for services in 2024. Aveo Pharmaceuticals, Inc. was the largest of 5 companies reporting payments in 2025, $23,564 in all, mostly consulting fees.
Overview
| NPI | 1477991933 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D., PH.D. |
| Sole proprietor | No |
| NPI issued | Jun 6, 2013 |
| Last updated in NPPES | Dec 16, 2021 |
| Certified by provider | Dec 16, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | 69842 | CT |
| Internal Medicine | 207R00000X | 266709 | MA |
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 | 46 |
|---|---|
| Services billed | 235 across 9 procedure codes |
| Paid by Medicare | $23,316 |
Part D prescriptions in 2024
| Prescriptions (claims) | 135 · 205 30-day fills |
|---|---|
| Patients | 21 |
| Total drug cost | $824,283 |
| Generic share | 69% of claims |
Education and affiliations
| Medical school | Icahn School of Medicine at Mount Sinai |
|---|---|
| Graduation year | 2013 |
| Medicare specialty | Medical Oncology |
| Telehealth | Offers telehealth |
Medical group
- Yale UniversityNew Haven, CT · 2,645 clinicians
Hospital affiliations
- Bridgeport HospitalBridgeport, CT
- Greenwich Hospital Association -Greenwich, CT
- Lawrence & Memorial HospitalNew London, CT
- Yale-New Haven HospitalNew Haven, CT
Industry payments (Open Payments)
- 2025$23,564 · 18 payments from 5 companies
- 2024$3,961 · 7 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Aveo Pharmaceuticals, Inc. | $9,673 | 2 |
| Exelixis Inc. | $6,569 | 8 |
| Eisai Inc. | $5,591 | 6 |
| Daiichi Sankyo Inc. | $1,688 | 1 |
| Astrazeneca Pharmaceuticals LP | $43.25 | 1 |
What the 2025 payments were for
- Consulting Fee$16,568 · 4 payments
- Honoraria$4,290 · 1 payment
- Travel and Lodging$2,081 · 6 payments
- Food and Beverage$582.59 · 6 payments
- Education$43.25 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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