Joseph E. Barrera, M.D.
NPI 1629054630ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Mission Viejo, CA
Internal Medicine, Endocrinology, Diabetes & Metabolism (M.D.) with Providence Medical Foundation, practicing in Mission Viejo, California. Their prescriptions cost Medicare Part D more than their services did: $1,259,081 for 4,495 claims, against $80,468 paid for services in 2024. Novo Nordisk Inc was the largest of 15 companies reporting payments in 2025, $761.55 in all, mostly food and beverage. Lists Providence Mission Hospital as a hospital affiliation.
Overview
| NPI | 1629054630 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 21, 2005 |
| Last updated in NPPES | Oct 15, 2021 |
| Certified by provider | Oct 15, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | G64643 | 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 - Endocrinology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 328 |
|---|---|
| Services billed | 9,148 across 41 procedure codes |
| Paid by Medicare | $80,468 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,495 · 10,912 30-day fills |
|---|---|
| Patients | 479 |
| Total drug cost | $1,259,081 |
| Generic share | 62% of claims |
Education and affiliations
| Graduation year | 1987 |
|---|---|
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Providence Medical FoundationVictorville, CA · 1,466 clinicians
Hospital affiliation
- Providence Mission HospitalMission Viejo, CA
Industry payments (Open Payments)
- 2025$761.55 · 31 payments from 15 companies
- 2024$673.64 · 37 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $134.03 | 5 |
| Lilly USA, LLC | $131.92 | 4 |
| Abbott Laboratories | $98.35 | 4 |
| Radius Health, Inc. | $56.89 | 2 |
| Amgen Inc. | $52.18 | 3 |
What the 2025 payments were for
- Food and Beverage$761.55 · 31 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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