Ellen M. Boynton, PA-C
NPI 1699073916ActiveIndividual· Physician Assistant· Saint Louis, MO
Physician Assistant (PA-C) in Saint Louis, Missouri, trained at Saint Louis University School of Medicine (class of 2011). Part D covered 315 prescriptions written in 2024, 84% of them generic. Genzyme Corporation was the largest of 8 companies reporting payments in 2025, $993.01 in all, mostly food and beverage.
Overview
| NPI | 1699073916 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Mar 10, 2011 |
| Last updated in NPPES | Aug 5, 2026 |
| Certified by provider | Aug 5, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 085004009 | IL |
| Physician Assistant | 363A00000X | 20240478142 | MO |
| Physician Assistant | 363A00000X | 52534 | CA |
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 (CA); Practitioner - Physician Assistant (IL); Practitioner - Physician Assistant (MO) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 315 · 641 30-day fills |
|---|---|
| Patients | 90 |
| Total drug cost | $17,107 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | Saint Louis University School of Medicine |
|---|---|
| Graduation year | 2011 |
| Medicare specialty | Physician Assistant |
Medical group
- Allergy, Asthma and Sinus Care Center, LLCSwansea, IL · 10 clinicians
Industry payments (Open Payments)
- 2025$993.01 · 27 payments from 8 companies
- 2024$279.70 · 13 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $312.36 | 6 |
| Astrazeneca Pharmaceuticals LP | $277.17 | 10 |
| Ars Pharmaceuticals Operations, Inc. | $124.98 | 1 |
| Organon LLC | $106.62 | 1 |
| Csl Behring | $94.15 | 5 |
What the 2025 payments were for
- Food and Beverage$993.01 · 27 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 512 physician assistants in Saint Louis · All physician assistants in Missouri