Mason Olivia Siddiqui, PA-C
NPI 1447927207ActiveIndividual· Physician Assistant· Columbus, MS
Physician Assistant (PA-C) with Bethany R Hairston MD, practicing in Columbus, Mississippi. Their prescriptions cost Medicare Part D more than their services did: $394,805 for 453 claims, against $83,549 paid for services in 2024. Daiichi Sankyo Inc. was the largest of 32 companies reporting payments in 2025, $1,737 in all, mostly food and beverage.
Overview
| NPI | 1447927207 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Aug 27, 2021 |
| Last updated in NPPES | Mar 23, 2026 |
| Certified by provider | Mar 23, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | — | — |
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 (AZ); Practitioner - Physician Assistant (MS); Practitioner - Physician Assistant (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 194 |
|---|---|
| Services billed | 3,973 across 60 procedure codes |
| Paid by Medicare | $83,549 |
Part D prescriptions in 2024
| Prescriptions (claims) | 453 · 687 30-day fills |
|---|---|
| Patients | 156 |
| Total drug cost | $394,805 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 2021 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Bethany R Hairston MDColumbus, MS · 4 clinicians
Industry payments (Open Payments)
- 2025$1,737 · 77 payments from 32 companies
- 2024$1,978 · 84 payments from 31 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Daiichi Sankyo Inc. | $231.59 | 16 |
| Pfizer Inc. | $114.47 | 6 |
| Merck Sharp & Dohme LLC | $114.02 | 4 |
| Novartis Pharmaceuticals Corporation | $99.53 | 4 |
| Janssen Biotech, Inc. | $96.38 | 4 |
What the 2025 payments were for
- Food and Beverage$1,737 · 77 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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