Annette Lynn Giangiacomo, MD
NPI 1912929019ActiveIndividual· Ophthalmology· Green Bay, WI
Ophthalmology (MD) with Tower Clock Eye Center SC, practicing in Green Bay, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $216,986 for 2,420 claims, against $21,997 paid for services in 2024. Abbvie Inc. reported $28.99 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1912929019 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 25, 2006 |
| Last updated in NPPES | Jun 4, 2024 |
| Certified by provider | Jun 4, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 44891 | WI |
| Ophthalmology | 207W00000X | A91112 | CA |
| Ophthalmology | 207W00000X | 2006-01410 | NC |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Ophthalmology (GA); Practitioner - Ophthalmology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 158 |
|---|---|
| Services billed | 406 across 18 procedure codes |
| Paid by Medicare | $21,997 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,420 · 5,164 30-day fills |
|---|---|
| Patients | 523 |
| Total drug cost | $216,986 |
| Generic share | 68% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Ophthalmology |
Medical group
- Tower Clock Eye Center SCGreen Bay, WI · 8 clinicians
Industry payments (Open Payments)
- 2025$28.99 · 1 payment from 1 company
- 2024$15.06 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $28.99 | 1 |
What the 2025 payments were for
- Food and Beverage$28.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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