Robert Peterson, D.O.
Psychiatry & Neurology, Psychiatry (D.O.) with Los Angeles County Department of Mental Health, practicing in Gardena, California. Their prescriptions cost Medicare Part D more than their services did: $166,112 for 1,249 claims, against $12,948 paid for services in 2024. Viiv Healthcare Company reported $15.04 in payments in 2024, mostly food and beverage. A record with the same name and state is on the OIG exclusion list; it carries no NPI, so check it before acting.
Overview
| NPI | 1669865424 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | Yes |
| NPI issued | Mar 17, 2015 |
| Last updated in NPPES | Oct 27, 2022 |
| Certified by provider | Oct 27, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | 20A14381 | CA |
Exclusion screening
Possible match: verify before acting. The OIG list has a record with the same name in California, but that record carries no NPI, so it may be a different person or business.
| Matched by | Name on OIG list | Exclusion type | Excluded since | Location |
|---|---|---|---|---|
| Name + state | Robert Hershey Peterson · Nurse/Nurses Aide | 1128a2 | Apr 19, 2012 | N Palm Springs, CA |
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | Possible (name) | See above |
| 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 - Psychiatry (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 47 |
|---|---|
| Services billed | 133 across 7 procedure codes |
| Paid by Medicare | $12,948 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,249 · 1,349 30-day fills |
|---|---|
| Patients | 101 |
| Total drug cost | $166,112 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Psychiatry |
| Telehealth | Offers telehealth |
Medical group
- Los Angeles County Department of Mental HealthGardena, CA · 282 clinicians
Industry payments (Open Payments)
- 2024$15.04 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Viiv Healthcare Company | $15.04 | 1 |
What the 2024 payments were for
- Food and Beverage$15.04 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 31 psychiatrists in Gardena · All psychiatrists in California