Reginald Kai Mason, MD
NPI 1699739607ActiveIndividual· Surgery· Alton, IL
Surgery (MD) with Osf Multi-Specialty Group and 1 other group, practicing in Alton, Illinois. Mostly services rather than prescriptions: Medicare paid $20,831 for 106 patients in 2024, with only 16 Part D claims. Intuitive Surgical, Inc. was the largest of 2 companies reporting payments in 2024, $1,115 in all, mostly travel and lodging. Lists Christus St Vincent Regional Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1699739607 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 14, 2006 |
| Last updated in NPPES | Oct 20, 2025 |
| Certified by provider | Oct 20, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | 036169863 | IL |
| Surgery | 208600000X | 0101236379 | VA |
| Surgery | 208600000X | 2021-03370 | NC |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - General Surgery (IL); Practitioner - General Surgery (NC); Practitioner - General Surgery (NM); Practitioner - General Surgery (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 106 |
|---|---|
| Services billed | 162 across 30 procedure codes |
| Paid by Medicare | $20,831 |
Part D prescriptions in 2024
| Prescriptions (claims) | 16 · 22 30-day fills |
|---|---|
| Patients | 11 |
| Total drug cost | $111.33 |
| Generic share | 94% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | General Surgery |
Medical groups
- Osf Multi-Specialty GroupMorton, IL · 2,114 clinicians
- St Vincent HospitalSanta Fe, NM · 310 clinicians
Hospital affiliations
- Christus St Vincent Regional Medical CenterSanta Fe, NM
- Osf Saint Anthony's Health CenterAlton, IL
Industry payments (Open Payments)
- 2024$1,115 · 7 payments from 2 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $1,096 | 6 |
| Medtronic, Inc. | $18.68 | 1 |
What the 2024 payments were for
- Travel and Lodging$925.54 · 3 payments
- Food and Beverage$189.11 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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