Erica L. Mayer, MD MPH
NPI 1336121789ActiveIndividual· Internal Medicine, Medical Oncology· Boston, MA
Internal Medicine, Medical Oncology (MD MPH) in Boston, Massachusetts, trained at Harvard Medical School (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $650,939 for 341 claims, against $19,538 paid for services in 2024. Lilly USA, LLC was the largest of 9 companies reporting payments in 2025, $85,449 in all, mostly consulting fees.
Overview
| NPI | 1336121789 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD MPH |
| Sole proprietor | No |
| NPI issued | Nov 18, 2005 |
| Last updated in NPPES | Nov 23, 2020 |
| Certified by provider | Nov 23, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | 215788 | 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 (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 117 |
|---|---|
| Services billed | 233 across 7 procedure codes |
| Paid by Medicare | $19,538 |
Part D prescriptions in 2024
| Prescriptions (claims) | 341 · 764 30-day fills |
|---|---|
| Patients | 101 |
| Total drug cost | $650,939 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | Harvard Medical School |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Medical Oncology |
| Secondary specialties | Internal Medicine |
Medical group
- Dana-Farber Cancer Institute, Inc.Boston, MA · 684 clinicians
Hospital affiliations
- Brigham and Women's HospitalBoston, MA
- Massachusetts General HospitalBoston, MA
- Newton-Wellesley HospitalNewton, MA
Industry payments (Open Payments)
- 2025$85,449 · 52 payments from 9 companies
- 2024$29,190 · 21 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $21,000 | 4 |
| Astrazeneca Pharmaceuticals LP | $15,006 | 10 |
| Genentech, Inc. | $14,439 | 5 |
| Novartis Pharmaceuticals Corporation | $11,600 | 6 |
| Astrazeneca Uk Limited | $7,664 | 11 |
What the 2025 payments were for
- Consulting Fee$81,678 · 25 payments
- Food and Beverage$1,894 · 19 payments
- Travel and Lodging$1,834 · 7 payments
- Education$43.25 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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