Zachary Tyser, MD
NPI 1609215490ActiveIndividual· Obstetrics & Gynecology· Daytona Beach, FL
Obstetrics & Gynecology (MD) with Florida Hospital Healthcare Partners, Inc and 1 other group, practicing in Daytona Beach, Florida. Their prescriptions cost Medicare Part D more than their services did: $25,371 for 487 claims, against $8,901 paid for services in 2024. Astellas Pharma US Inc was the largest of 12 companies reporting payments in 2025, $545.84 in all, mostly food and beverage. Lists Adventhealth Daytona Beach and 1 other hospital as hospital affiliations.
Overview
| NPI | 1609215490 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 14, 2013 |
| Last updated in NPPES | Nov 3, 2025 |
| Certified by provider | Nov 3, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | ME132198 | FL |
| Obstetrics & Gynecology | 207V00000X | LL35836 | SC |
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 - Obstetrics/Gynecology (FL); Practitioner - Obstetrics/Gynecology (NH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 96 |
|---|---|
| Services billed | 139 across 18 procedure codes |
| Paid by Medicare | $8,901 |
Part D prescriptions in 2024
| Prescriptions (claims) | 487 · 953 30-day fills |
|---|---|
| Patients | 146 |
| Total drug cost | $25,371 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Obstetrics/Gynecology |
Medical groups
- Florida Hospital Healthcare Partners, IncPalm Coast, FL · 642 clinicians
- Schwenker and Stavoy, MD, PADaytona Beach, FL · 6 clinicians
Hospital affiliations
- Adventhealth Daytona BeachDaytona Beach, FL
- Halifax Health Medical CenterDaytona Beach, FL
Industry payments (Open Payments)
- 2025$545.84 · 23 payments from 12 companies
- 2024$325.61 · 17 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $162.80 | 5 |
| Exact Sciences Corporation | $63.82 | 3 |
| Smith+nephew, Inc. | $47.89 | 2 |
| Amgen Inc. | $47.24 | 3 |
| Millicent US Inc | $46.01 | 2 |
What the 2025 payments were for
- Food and Beverage$545.84 · 23 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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