Omar K. Mahmassani, D.D.S.
NPI 1497781850ActiveIndividual· Dentist· Frederick, MD
Dentist (D.D.S.) in Frederick, Maryland, trained at Georgetown University School of Medicine (class of 1989). Part D covered 33 prescriptions written in 2024, 100% of them generic. Align Technology, Inc. reported $350.00 in payments in 2025, mostly education.
Overview
| NPI | 1497781850 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.D.S. |
| Sole proprietor | Yes |
| NPI issued | Jun 25, 2006 |
| Last updated in NPPES | May 12, 2026 |
| Certified by provider | May 12, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dentist Primary | 122300000X | 10913 | MD |
| Durable Medical Equipment & Medical Supplies, Customized Equipment | 332BC3200X | 10913 | MD |
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 DME Supplier - Physician - General Practice (MD); Practitioner - Dentist (MD) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 33 · 33 30-day fills |
|---|---|
| Patients | 22 |
| Total drug cost | $105.26 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | Georgetown University School of Medicine |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Dentist |
Industry payments (Open Payments)
- 2025$350.00 · 1 payment from 1 company
- 2024$149.11 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Align Technology, Inc. | $350.00 | 1 |
What the 2025 payments were for
- Education$350.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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