Richard Allen Guerrero Jr., M.D.
NPI 1891715835ActiveIndividual· Surgery· Fountain Valley, CA
Surgery (M.D.) in Fountain Valley, California, trained at University of Southern California Keck School of Medicine (class of 2000). 67 Medicare patients in 2024, $69,622 paid; nearly all of their 67 Part D prescriptions were generic (94%). W. L. Gore & Associates, Inc. was the largest of 3 companies reporting payments in 2025, $420.92 in all, mostly food and beverage.
Overview
| NPI | 1891715835 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 20, 2006 |
| Last updated in NPPES | Jul 31, 2026 |
| Certified by provider | Jul 31, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | A79327 | 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 - General Surgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 67 |
|---|---|
| Services billed | 299 across 28 procedure codes |
| Paid by Medicare | $69,622 |
Part D prescriptions in 2024
| Prescriptions (claims) | 67 · 67 30-day fills |
|---|---|
| Patients | 62 |
| Total drug cost | $2,977 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | University of Southern California Keck School of Medicine |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | General Surgery |
Hospital affiliations
- Foothill Regional Medical CenterTustin, CA
- Garden Grove Hospital & Medical CenterGarden Grove, CA
- Huntington Beach HospitalHuntington Beach, CA
- Uci Health-OrangeOrange, CA
Industry payments (Open Payments)
- 2025$420.92 · 6 payments from 3 companies
- 2024$1,084 · 15 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| W. L. Gore & Associates, Inc. | $248.92 | 4 |
| Teleflex LLC | $166.75 | 1 |
| Intuitive Surgical, Inc. | $5.25 | 1 |
What the 2025 payments were for
- Food and Beverage$420.92 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 24 general surgeons in Fountain Valley · All general surgeons in California