Sergio Penaherrera, MD
NPI 1538258744ActiveIndividual· Internal Medicine· Yuma, AZ
Internal Medicine (MD) with Yuma Regional Medical Center, practicing in Yuma, Arizona. Their prescriptions cost Medicare Part D more than their services did: $1,821,017 for 9,840 claims, against $64,508 paid for services in 2024. Abbott Laboratories was the largest of 3 companies reporting payments in 2025, $205.02 in all, mostly food and beverage. Lists Yuma Regional Medical Center as a hospital affiliation.
Overview
| NPI | 1538258744 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 12, 2006 |
| Last updated in NPPES | Jan 3, 2025 |
| Certified by provider | Jan 3, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 22887 | 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 - Internal Medicine (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 304 |
|---|---|
| Services billed | 1,543 across 19 procedure codes |
| Paid by Medicare | $64,508 |
Part D prescriptions in 2024
| Prescriptions (claims) | 9,840 · 25,095 30-day fills |
|---|---|
| Patients | 1,043 |
| Total drug cost | $1,821,017 |
| Generic share | 75% of claims |
Education and affiliations
| Graduation year | 1988 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Yuma Regional Medical CenterYuma, AZ · 361 clinicians
Hospital affiliation
- Yuma Regional Medical CenterYuma, AZ
Industry payments (Open Payments)
- 2025$205.02 · 11 payments from 3 companies
- 2024$477.55 · 26 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $139.70 | 8 |
| Novo Nordisk Inc | $38.95 | 2 |
| Tandem Diabetes Care, Inc. | $26.37 | 1 |
What the 2025 payments were for
- Food and Beverage$205.02 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 86 internal medicine physicians in Yuma · All internal medicine physicians in Arizona