Demetrio Bernabe Mamani, M.D.
NPI 1598788499ActiveIndividual· Internal Medicine, Medical Oncology· Glendale, AZ
Internal Medicine, Medical Oncology (M.D.) in Glendale, Arizona, trained at University of Arizona College of Medicine (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $5,183,738 for 1,612 claims, against $1,347,871 paid for services in 2024. Merck Sharp & Dohme LLC was the largest of 37 companies reporting payments in 2025, $2,244 in all, mostly food and beverage.
Overview
| NPI | 1598788499 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 25, 2006 |
| Last updated in NPPES | Nov 29, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | 33878 | AZ |
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 - Hematology/Oncology (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 345 |
|---|---|
| Services billed | 101,594 across 111 procedure codes |
| Paid by Medicare | $1,347,871 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,612 · 2,301 30-day fills |
|---|---|
| Patients | 270 |
| Total drug cost | $5,183,738 |
| Generic share | 60% of claims |
Education and affiliations
| Medical school | University of Arizona College of Medicine |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Hematology/Oncology |
Medical group
- Palo Verde Hematology Oncology LtdPhoenix, AZ · 7 clinicians
Hospital affiliations
- Abrazo Arrowhead HospitalGlendale, AZ
- Abrazo Central CampusPhoenix, AZ
- Banner Estrella Medical CenterPhoenix, AZ
- Banner Thunderbird Medical CenterGlendale, AZ
Industry payments (Open Payments)
- 2025$2,244 · 97 payments from 37 companies
- 2024$2,147 · 81 payments from 31 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $224.24 | 9 |
| Celgene Corporation | $185.75 | 8 |
| E.R. Squibb & Sons, L.L.C. | $184.93 | 8 |
| Pfizer Inc. | $171.50 | 8 |
| Abbvie Inc. | $164.83 | 9 |
What the 2025 payments were for
- Food and Beverage$2,218 · 96 payments
- Education$25.95 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Medical Oncology providers in Glendale
- 1609187921
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- 1689837601
- 1558384966
- 1992729826
All Internal Medicine, Medical Oncology providers in Arizona →