Andrew Blasius Johnston, MD
NPI 1912404922ActiveIndividual· Ophthalmology· Knoxville, TN
Ophthalmology (MD) in Knoxville, Tennessee, trained at University of Tennessee, Hsc, College of Medicine (class of 2018). In 2024 Medicare paid $127,751 for 654 patients, and Part D covered 1,417 of their prescriptions, 65% of them generic. Alcon Vision LLC reported $55.76 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1912404922 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 7, 2018 |
| Last updated in NPPES | May 24, 2022 |
| Certified by provider | May 24, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 65229 | TN |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 654 |
|---|---|
| Services billed | 1,729 across 35 procedure codes |
| Paid by Medicare | $127,751 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,417 · 2,300 30-day fills |
|---|---|
| Patients | 425 |
| Total drug cost | $116,503 |
| Generic share | 65% of claims |
Education and affiliations
| Medical school | University of Tennessee, Hsc, College of Medicine |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | Ophthalmology |
Medical group
- Campbell Cunningham Taylor PCKnoxville, TN · 15 clinicians
Industry payments (Open Payments)
- 2025$55.76 · 2 payments from 1 company
- 2024$246.82 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alcon Vision LLC | $55.76 | 2 |
What the 2025 payments were for
- Food and Beverage$55.76 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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