Matthew D. Krein, O.D.
NPI 1316250459ActiveIndividual· Optometrist· Elizabethtown, KY
Optometrist (O.D.) with Cherokee Nation and 1 other group, practicing in Elizabethtown, Kentucky. Mostly services rather than prescriptions: Medicare paid $11,557 for 120 patients in 2024, with only 38 Part D claims. Sun Pharmaceutical Industries Inc. was the largest of 3 companies reporting payments in 2025, $96.89 in all, mostly food and beverage. Lists Cherokee Nation W W Hastings Indian Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1316250459 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | O.D. |
| Sole proprietor | No |
| NPI issued | Jul 19, 2010 |
| Last updated in NPPES | Oct 22, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 1880DT | KY |
| Optometrist | 152W00000X | 2659 | OK |
| Optometrist | 152W00000X | 2665 | AR |
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 (OK); Practitioner - Optometry (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 120 |
|---|---|
| Services billed | 183 across 20 procedure codes |
| Paid by Medicare | $11,557 |
Part D prescriptions in 2024
| Prescriptions (claims) | 38 · 42 30-day fills |
|---|---|
| Patients | 21 |
| Total drug cost | $10,267 |
| Generic share | 29% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Optometry |
Medical groups
- Cherokee NationTahlequah, OK · 449 clinicians
- Northeastern State University College of OptometrySalina, OK · 22 clinicians
Hospital affiliations
- Cherokee Nation W W Hastings Indian HospitalTahlequah, OK
- Northeastern Health SystemTahlequah, OK
Industry payments (Open Payments)
- 2025$96.89 · 3 payments from 3 companies
- 2024$22.62 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sun Pharmaceutical Industries Inc. | $50.58 | 1 |
| Alcon Vision LLC | $27.57 | 1 |
| Genzyme Corporation | $18.74 | 1 |
What the 2025 payments were for
- Food and Beverage$96.89 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 26 optometrists in Elizabethtown · All optometrists in Kentucky