Darin Eric Johnson, PA-C
NPI 1235295254ActiveIndividual· Physician Assistant, Surgical· Laguna Hills, CA
Physician Assistant, Surgical (PA-C) with Orthopaedic Specialty Institute Medical Group of Orange County, practicing in Laguna Hills, California. 68 Medicare patients in 2024, $30,834 paid; nearly all of their 547 Part D prescriptions were generic (98%). Si-Bone, Inc. was the largest of 5 companies reporting payments in 2025, $165.51 in all, mostly food and beverage. Lists Memorialcare Saddleback Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1235295254 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Dec 28, 2006 |
| Last updated in NPPES | Apr 21, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Surgical Primary | 363AS0400X | PA17664 | 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 - Physician Assistant (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 68 |
|---|---|
| Services billed | 452 across 49 procedure codes |
| Paid by Medicare | $30,834 |
Part D prescriptions in 2024
| Prescriptions (claims) | 547 · 565 30-day fills |
|---|---|
| Patients | 191 |
| Total drug cost | $6,730 |
| Generic share | 98% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Orthopaedic Specialty Institute Medical Group of Orange CountyNewport Beach, CA · 64 clinicians
Hospital affiliations
- Memorialcare Saddleback Medical CenterLaguna Hills, CA
- Providence Mission HospitalMission Viejo, CA
Industry payments (Open Payments)
- 2025$165.51 · 7 payments from 5 companies
- 2024$506.38 · 20 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Si-Bone, Inc. | $60.41 | 2 |
| Abbvie Inc. | $36.74 | 2 |
| Becton, Dickinson and Company | $34.00 | 1 |
| Abbott Laboratories | $19.19 | 1 |
| Acera Surgical, Inc. | $15.17 | 1 |
What the 2025 payments were for
- Food and Beverage$131.51 · 6 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$34.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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