Erminia Massarelli, MD
NPI 1982855326ActiveIndividual· Internal Medicine, Medical Oncology· Duarte, CA
Internal Medicine, Medical Oncology (MD) with University of Texas Health Science Center at Tyler-Facilty-Physician, practicing in Duarte, California. Their prescriptions cost Medicare Part D more than their services did: $795,416 for 129 claims, against $50,779 paid for services in 2024. Eli Lilly and Company was the largest of 17 companies reporting payments in 2025, $21,677 in all, mostly consulting fees. Lists University of Texas Health Science Center at Tyler and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1982855326 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 3, 2008 |
| Last updated in NPPES | Nov 13, 2020 |
| Certified by provider | Nov 13, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | 142539 | CA |
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 (CA); Practitioner - Hematology/Oncology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 170 |
|---|---|
| Services billed | 501 across 12 procedure codes |
| Paid by Medicare | $50,779 |
Part D prescriptions in 2024
| Prescriptions (claims) | 129 · 133 30-day fills |
|---|---|
| Patients | 28 |
| Total drug cost | $795,416 |
| Generic share | 50% of claims |
Education and affiliations
| Graduation year | 1997 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
Medical group
- University of Texas Health Science Center at Tyler-Facilty-PhysicianTyler, TX · 122 clinicians
Hospital affiliations
Industry payments (Open Payments)
- 2025$21,677 · 48 payments from 17 companies
- 2024$22,835 · 48 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Eli Lilly and Company | $7,650 | 4 |
| Janssen Biotech, Inc. | $6,220 | 8 |
| Astrazeneca Pharmaceuticals LP | $2,605 | 9 |
| Janssen Scientific Affairs, LLC | $2,115 | 1 |
| Catalyst Pharmaceuticals, Inc. | $1,125 | 1 |
What the 2025 payments were for
- Consulting Fee$18,880 · 12 payments
- Food and Beverage$1,393 · 33 payments
- Honoraria$1,125 · 1 payment
- Travel and Lodging$269.36 · 1 payment
- Education$9.65 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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