Sarah Siak, PAC MPAS
NPI 1285624726ActiveIndividual· Physician Assistant· Kissimmee, FL
Physician Assistant (PAC MPAS) with Leavitt Medical Associates of Florida Inc, practicing in Kissimmee, Florida. Their prescriptions cost Medicare Part D more than their services did: $1,023,307 for 1,164 claims, against $25,281 paid for services in 2024. Abbvie Inc. was the largest of 21 companies reporting payments in 2025, $3,132 in all, mostly food and beverage.
Overview
| NPI | 1285624726 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PAC MPAS |
| Sole proprietor | No |
| NPI issued | Oct 26, 2005 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA9101340 | FL |
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 (FL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 137 |
|---|---|
| Services billed | 828 across 26 procedure codes |
| Paid by Medicare | $25,281 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,164 · 1,381 30-day fills |
|---|---|
| Patients | 356 |
| Total drug cost | $1,023,307 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Leavitt Medical Associates of Florida IncThe Villages, FL · 198 clinicians
Industry payments (Open Payments)
- 2025$3,132 · 151 payments from 21 companies
- 2024$3,750 · 189 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $486.54 | 22 |
| Novartis Pharmaceuticals Corporation | $464.10 | 25 |
| Genzyme Corporation | $337.51 | 12 |
| Leo Pharma Inc. | $277.01 | 10 |
| Ucb, Inc. | $206.02 | 9 |
What the 2025 payments were for
- Food and Beverage$3,127 · 150 payments
- Education$5.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 86 physician assistants in Kissimmee · All physician assistants in Florida