David John Massop, MD
NPI 1003267956ActiveIndividual· Ophthalmology, Retina Specialist· Des Moines, IA
Ophthalmology, Retina Specialist (MD) in Des Moines, Iowa, trained at Creighton University School of Medicine (class of 2016). In 2024 Medicare paid $4,935,895 for 1,303 patients, and Part D covered 615 of their prescriptions, 55% of them generic. US Oncology Corporate, Inc. was the largest of 7 companies reporting payments in 2025, $607.01 in all, mostly food and beverage.
Overview
| NPI | 1003267956 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jun 22, 2016 |
| Last updated in NPPES | Apr 12, 2021 |
| Certified by provider | Apr 12, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology, Retina Specialist Primary | 207WX0107X | 47004 | IA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Ophthalmology (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,303 |
|---|---|
| Services billed | 141,780 across 60 procedure codes |
| Paid by Medicare | $4,935,895 |
Part D prescriptions in 2024
| Prescriptions (claims) | 615 · 1,005 30-day fills |
|---|---|
| Patients | 213 |
| Total drug cost | $24,519 |
| Generic share | 55% of claims |
Education and affiliations
| Medical school | Creighton University School of Medicine |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Ophthalmology |
Medical group
- Wolfe Clinic IncSpencer, IA · 39 clinicians
Industry payments (Open Payments)
- 2025$607.01 · 10 payments from 7 companies
- 2024$739.59 · 11 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| US Oncology Corporate, Inc. | $222.10 | 1 |
| Abbvie Inc. | $139.68 | 2 |
| Genentech, Inc. | $105.55 | 1 |
| Regeneron Healthcare Solutions, Inc. | $62.59 | 3 |
| Neurotech Pharmaceuticals, Inc. | $29.86 | 1 |
What the 2025 payments were for
- Food and Beverage$607.01 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records