Marcela Valderama Maus, MD
NPI 1639233877ActiveIndividual· Internal Medicine, Hematology & Oncology· Philadelphia, PA
Internal Medicine, Hematology & Oncology (MD) in Philadelphia, Pennsylvania, trained at Perelman School of Med at the University of Pennsylvania (class of 2005). Enrolled in Medicare as practitioner - medical oncology. E.R. Squibb & Sons, L.L.C. was the largest of 5 companies reporting payments in 2025, $20,251 in all, mostly consulting fees.
Overview
| NPI | 1639233877 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 21, 2006 |
| Last updated in NPPES | Aug 29, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | MD446462 | PA |
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 - Medical Oncology (MA) |
|---|
Education and affiliations
| Medical school | Perelman School of Med at the University of Pennsylvania |
|---|---|
| Graduation year | 2005 |
| Medicare specialty | Medical Oncology |
| Secondary specialties | Hematology, Internal Medicine |
Medical group
- Massachusetts General Physicians Organization IncBoston, MA · 3,558 clinicians
Hospital affiliation
- Massachusetts General HospitalBoston, MA
Industry payments (Open Payments)
- 2025$20,251 · 12 payments from 5 companies
- 2024$61.06 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $7,163 | 1 |
| Chugai Pharmaceutical Co., Ltd. | $6,495 | 5 |
| Alexion Pharmaceuticals, Inc. | $5,121 | 4 |
| Gilead Sciences, Inc. | $1,450 | 1 |
| Sobi, Inc | $21.96 | 1 |
What the 2025 payments were for
- Consulting Fee$15,733 · 4 payments
- Travel and Lodging$4,418 · 3 payments
- Food and Beverage$99.99 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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