Nathan Evan Osterman, O.D.
NPI 1437531381ActiveIndividual· Optometrist· Cedar Park, TX
Optometrist (O.D.) with Waterloo Eye Associates, practicing in Cedar Park, Texas. Their prescriptions cost Medicare Part D more than their services did: $144,623 for 717 claims, against $79,187 paid for services in 2024. Abbvie Inc. was the largest of 6 companies reporting payments in 2025, $436.87 in all, mostly food and beverage.
Overview
| NPI | 1437531381 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | O.D. |
| Sole proprietor | No |
| NPI issued | Jun 26, 2015 |
| Last updated in NPPES | Aug 4, 2022 |
| Certified by provider | Aug 4, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 9443TG | TX |
| Optometrist | 152W00000X | 4901004909 | MI |
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 - Optometry (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 491 |
|---|---|
| Services billed | 1,308 across 23 procedure codes |
| Paid by Medicare | $79,187 |
Part D prescriptions in 2024
| Prescriptions (claims) | 717 · 1,343 30-day fills |
|---|---|
| Patients | 268 |
| Total drug cost | $144,623 |
| Generic share | 58% of claims |
Education and affiliations
| Graduation year | 2015 |
|---|---|
| Medicare specialty | Optometry |
Medical group
- Waterloo Eye AssociatesCedar Park, TX · 4 clinicians
Industry payments (Open Payments)
- 2025$436.87 · 16 payments from 6 companies
- 2024$990.82 · 22 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $183.49 | 7 |
| Alcon Vision LLC | $78.12 | 3 |
| Sun Pharmaceutical Industries Inc. | $65.47 | 2 |
| Biotissue Holdings Inc. | $47.95 | 1 |
| Tarsus Pharmaceuticals, Inc. | $43.48 | 2 |
What the 2025 payments were for
- Food and Beverage$436.87 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 63 optometrists in Cedar Park · All optometrists in Texas