Heather L. Brinkman, PHY ASSIST CERT
NPI 1992718522ActiveIndividual· Physician Assistant· Saint Louis, MO
Physician Assistant (PHY ASSIST CERT) with Mercy Clinic Gastroenterology LLC, practicing in Saint Louis, Missouri. Their prescriptions cost Medicare Part D more than their services did: $12,465 for 131 claims, against $6,500 paid for services in 2024. Genzyme Corporation was the largest of 2 companies reporting payments in 2025, $196.81 in all, mostly food and beverage. Lists Mercy Hospital St Louis as a hospital affiliation.
Overview
| NPI | 1992718522 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PHY ASSIST CERT |
| Sole proprietor | No |
| NPI issued | Aug 14, 2006 |
| Last updated in NPPES | Dec 13, 2022 |
| Certified by provider | Dec 13, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 2022043392 | MO |
| Physician Assistant | 363A00000X | 2005022722 | MO |
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 (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 97 |
|---|---|
| Services billed | 103 across 11 procedure codes |
| Paid by Medicare | $6,500 |
Part D prescriptions in 2024
| Prescriptions (claims) | 131 · 191 30-day fills |
|---|---|
| Patients | 51 |
| Total drug cost | $12,465 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Mercy Clinic Gastroenterology LLCWashington, MO · 67 clinicians
Hospital affiliation
- Mercy Hospital St LouisSaint Louis, MO
Industry payments (Open Payments)
- 2025$196.81 · 4 payments from 2 companies
- 2024$55.11 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $177.87 | 3 |
| Phathom Pharmaceuticals, Inc. | $18.94 | 1 |
What the 2025 payments were for
- Food and Beverage$196.81 · 4 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