Michael Guerena, MD
NPI 1841222171ActiveIndividual· Specialist· Oceanside, CA
Specialist (MD) in Oceanside, California, trained at Loyola University of Chicago, Stritch School of Medicine (class of 1990). 595 Medicare patients in 2024, $452,353 paid; nearly all of their 2,690 Part D prescriptions were generic (91%). Janssen Biotech, Inc. was the largest of 26 companies reporting payments in 2025, $2,506 in all, mostly food and beverage.
Overview
| NPI | 1841222171 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 7, 2006 |
| Last updated in NPPES | May 1, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | G80926 | 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 - Urology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 595 |
|---|---|
| Services billed | 22,646 across 79 procedure codes |
| Paid by Medicare | $452,353 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,690 · 5,039 30-day fills |
|---|---|
| Patients | 684 |
| Total drug cost | $466,152 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | Loyola University of Chicago, Stritch School of Medicine |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Urology |
| Telehealth | Offers telehealth |
Medical group
- North Coast Urology Medical Associates IncOceanside, CA · 4 clinicians
Hospital affiliations
- Scripps Memorial Hospital - EncinitasEncinitas, CA
- Tri-City Medical CenterOceanside, CA
Industry payments (Open Payments)
- 2025$2,506 · 96 payments from 26 companies
- 2024$2,350 · 78 payments from 29 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $330.91 | 7 |
| Sumitomo Pharma America, Inc. | $295.11 | 16 |
| Astellas Pharma US Inc | $222.70 | 5 |
| Abbvie Inc. | $170.82 | 10 |
| Progenics Pharmaceuticals, Inc. | $170.30 | 3 |
What the 2025 payments were for
- Food and Beverage$2,359 · 94 payments
- Education$146.99 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 47 Specialist providers in Oceanside · All Specialist providers in California