Shannon O'Brien, PA
NPI 1316720857ActiveIndividual· Physician Assistant· Surprise, AZ
Physician Assistant (PA) with Arizona Pain Specialists PLLC, practicing in Surprise, Arizona. 139 Medicare patients in 2024, $31,985 paid; nearly all of their 234 Part D prescriptions were generic (97%). Nalu Medical, Inc. was the largest of 6 companies reporting payments in 2025, $944.51 in all, mostly food and beverage.
Overview
| NPI | 1316720857 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | No |
| NPI issued | Aug 17, 2023 |
| Last updated in NPPES | Aug 28, 2023 |
| Certified by provider | Aug 28, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 9820 | AZ |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Physician Assistant (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 139 |
|---|---|
| Services billed | 700 across 19 procedure codes |
| Paid by Medicare | $31,985 |
Part D prescriptions in 2024
| Prescriptions (claims) | 234 · 269 30-day fills |
|---|---|
| Patients | 113 |
| Total drug cost | $5,421 |
| Generic share | 97% of claims |
Education and affiliations
| Graduation year | 2023 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- Arizona Pain Specialists PLLCChandler, AZ · 39 clinicians
Industry payments (Open Payments)
- 2025$944.51 · 14 payments from 6 companies
- 2024$101.71 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Nalu Medical, Inc. | $617.93 | 6 |
| Boston Scientific Corporation | $186.23 | 4 |
| Si-Bone, Inc. | $87.69 | 1 |
| Valinor Pharma, LLC | $21.62 | 1 |
| Tonix Medicines, Inc. | $15.71 | 1 |
What the 2025 payments were for
- Food and Beverage$612.19 · 12 payments
- Travel and Lodging$332.32 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 59 physician assistants in Surprise · All physician assistants in Arizona