Maximilian Stahl, M.D.
NPI 1043621477ActiveIndividual· Internal Medicine, Hematology & Oncology· New Haven, CT
Internal Medicine, Hematology & Oncology (M.D.) with Yale University, practicing in New Haven, Connecticut. Their prescriptions cost Medicare Part D more than their services did: $950,744 for 204 claims, against $49,339 paid for services in 2024. Syndax Pharmaceuticals, Inc. was the largest of 4 companies reporting payments in 2025, $19,692 in all, mostly consulting fees. Lists Yale-New Haven Hospital as a hospital affiliation.
Overview
| NPI | 1043621477 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | May 20, 2014 |
| Last updated in NPPES | Feb 12, 2025 |
| Certified by provider | Feb 12, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 56265 | CT |
| Internal Medicine, Medical Oncology | 207RX0202X | 287928 | 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 - Internal Medicine (CT); Practitioner - Medical Oncology (CT); Practitioner - Medical Oncology (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 142 |
|---|---|
| Services billed | 503 across 12 procedure codes |
| Paid by Medicare | $49,339 |
Part D prescriptions in 2024
| Prescriptions (claims) | 204 · 243 30-day fills |
|---|---|
| Patients | 52 |
| Total drug cost | $950,744 |
| Generic share | 68% of claims |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Medical Oncology |
| Secondary specialties | Hematology |
Medical group
- Yale UniversityNew Haven, CT · 2,645 clinicians
Hospital affiliation
- Yale-New Haven HospitalNew Haven, CT
Industry payments (Open Payments)
- 2025$19,692 · 29 payments from 4 companies
- 2024$2,836 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Syndax Pharmaceuticals, Inc. | $10,845 | 15 |
| Rigel Pharmaceuticals, Inc. | $3,338 | 7 |
| Geron Corporation | $2,805 | 6 |
| Astellas Pharma Global Development | $2,704 | 1 |
What the 2025 payments were for
- Consulting Fee$13,754 · 6 payments
- Honoraria$2,740 · 1 payment
- Travel and Lodging$2,274 · 12 payments
- Food and Beverage$924.13 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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