Hanna F. Shammas, M.D.
NPI 1770698854ActiveIndividual· Ophthalmology· Lynwood, CA
Ophthalmology (M.D.) with H Shammas MD Inc, practicing in Lynwood, California. Their prescriptions cost Medicare Part D more than their services did: $130,022 for 2,029 claims, against $45,040 paid for services in 2024. Alcon Vision LLC was the largest of 8 companies reporting payments in 2025, $10,507 in all, mostly royalties and licenses.
Overview
| NPI | 1770698854 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 20, 2006 |
| Last updated in NPPES | Nov 5, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | A30800 | CA |
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 - Ophthalmology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 256 |
|---|---|
| Services billed | 602 across 18 procedure codes |
| Paid by Medicare | $45,040 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,029 · 3,909 30-day fills |
|---|---|
| Patients | 495 |
| Total drug cost | $130,022 |
| Generic share | 60% of claims |
Education and affiliations
| Graduation year | 1972 |
|---|---|
| Medicare specialty | Ophthalmology |
Medical group
- H Shammas MD IncLynwood, CA · 7 clinicians
Industry payments (Open Payments)
- 2025$10,507 · 23 payments from 8 companies
- 2024$7,916 · 21 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alcon Vision LLC | $3,764 | 8 |
| Haag-Streit USA, Inc. | $3,280 | 1 |
| Topcon Corporation | $3,050 | 1 |
| Amgen Inc. | $209.29 | 8 |
| Alcon Research LLC | $128.19 | 1 |
What the 2025 payments were for
- Royalty or License$6,330 · 2 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$3,500 · 1 payment
- Food and Beverage$676.86 · 20 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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