Nelson Concepcion De Guzman, MD
NPI 1982680781ActiveIndividual· Internal Medicine· Redding, CA
Internal Medicine (MD) with Enloe Medical Center, practicing in Redding, California. 241 Medicare patients in 2024, $14,470 paid; nearly all of their 162 Part D prescriptions were generic (93%). Lists Enloe Health as a hospital affiliation.
Overview
| NPI | 1982680781 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 22, 2005 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A73959 | CA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 241 |
|---|---|
| Services billed | 262 across 14 procedure codes |
| Paid by Medicare | $14,470 |
Part D prescriptions in 2024
| Prescriptions (claims) | 162 · 198 30-day fills |
|---|---|
| Patients | 129 |
| Total drug cost | $2,159 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 1981 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Enloe Medical CenterChico, CA · 333 clinicians
Hospital affiliation
- Enloe HealthChico, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 57 internal medicine physicians in Redding · All internal medicine physicians in California