Marianna L. Sisk, D.O.
NPI 1306107636ActiveIndividual· Family Medicine· Oviedo, FL
Family Medicine (D.O.) with Ability Health Services and Rehabilitation LP and 2 other groups, practicing in Oviedo, Florida. Their prescriptions cost Medicare Part D more than their services did: $313,917 for 2,055 claims, against $33,190 paid for services in 2024. Pfizer Inc. was the largest of 19 companies reporting payments in 2025, $1,503 in all, mostly food and beverage. Lists Orlando Health as a hospital affiliation.
Overview
| NPI | 1306107636 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Jun 4, 2012 |
| Last updated in NPPES | Aug 16, 2022 |
| Certified by provider | Aug 16, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | OS12327 | 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 - Family Practice (FL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 139 |
|---|---|
| Services billed | 633 across 31 procedure codes |
| Paid by Medicare | $33,190 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,055 · 4,723 30-day fills |
|---|---|
| Patients | 235 |
| Total drug cost | $313,917 |
| Generic share | 79% of claims |
Education and affiliations
| Graduation year | 2012 |
|---|---|
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical groups
- Ability Health Services and Rehabilitation LPSanford, FL · 1,269 clinicians
- Ability Health Services, IncSanford, FL · 1,258 clinicians
- Orlando Physicians Network IncWindermere, FL · 232 clinicians
Hospital affiliation
- Orlando HealthOrlando, FL
Industry payments (Open Payments)
- 2025$1,503 · 74 payments from 19 companies
- 2024$2,710 · 138 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $284.85 | 14 |
| Abbvie Inc. | $266.05 | 10 |
| Novo Nordisk Inc | $171.71 | 9 |
| Astrazeneca Pharmaceuticals LP | $153.73 | 12 |
| Astellas Pharma US Inc | $95.11 | 3 |
What the 2025 payments were for
- Food and Beverage$1,503 · 74 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 70 family medicine physicians in Oviedo · All family medicine physicians in Florida