Nancy Gutierrez Rivera, MD
NPI 1467834812ActiveIndividual· Internal Medicine· New Castle, DE
Internal Medicine (MD) with Christiana Care Health Services Inc, practicing in New Castle, Delaware. Their prescriptions cost Medicare Part D more than their services did: $382,968 for 3,227 claims, against $45,847 paid for services in 2024. Aimmune Therapeutics, Inc. reported $33.09 in payments in 2025, mostly food and beverage. Lists Christiana Hospital as a hospital affiliation.
Overview
| NPI | 1467834812 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jun 22, 2015 |
| Last updated in NPPES | Apr 4, 2023 |
| Certified by provider | Apr 4, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | C1-0025553 | DE |
| Internal Medicine | 207R00000X | 155276 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (DE) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 331 |
|---|---|
| Services billed | 633 across 27 procedure codes |
| Paid by Medicare | $45,847 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,227 · 7,576 30-day fills |
|---|---|
| Patients | 501 |
| Total drug cost | $382,968 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 2012 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Christiana Care Health Services IncNewark, DE · 1,483 clinicians
Hospital affiliation
- Christiana HospitalNewark, DE
Other facilities
- Bayada Home Health Care, IncHome health agency · Wilmington, DE
- Christianacare HomehealthHome health agency · Wilmington, DE
Industry payments (Open Payments)
- 2025$33.09 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Aimmune Therapeutics, Inc. | $33.09 | 1 |
What the 2025 payments were for
- Food and Beverage$33.09 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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