John S. Parker, MD
NPI 1114033016ActiveIndividual· Ophthalmology· Vestavia, AL
Ophthalmology (MD) in Vestavia, Alabama, trained at Louisiana State University School of Medicine in New Orleans (class of 1986). Their prescriptions cost Medicare Part D more than their services did: $1,734,307 for 5,643 claims, against $223,940 paid for services in 2024. Glaukos Corporation was the largest of 11 companies reporting payments in 2025, $1,031 in all, mostly food and beverage.
Overview
| NPI | 1114033016 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Aug 22, 2006 |
| Last updated in NPPES | Nov 15, 2022 |
| Certified by provider | Nov 15, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 13420 | AL |
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 Practitioner - Ophthalmology (AL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 587 |
|---|---|
| Services billed | 2,421 across 57 procedure codes |
| Paid by Medicare | $223,940 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,643 · 9,336 30-day fills |
|---|---|
| Patients | 1,175 |
| Total drug cost | $1,734,307 |
| Generic share | 60% of claims |
Education and affiliations
| Medical school | Louisiana State University School of Medicine in New Orleans |
|---|---|
| Graduation year | 1986 |
| Medicare specialty | Ophthalmology |
Medical group
- Parker CorneaGuntersville, AL · 5 clinicians
Hospital affiliation
- University of Alabama HospitalBirmingham, AL
Industry payments (Open Payments)
- 2025$1,031 · 27 payments from 11 companies
- 2024$938.28 · 21 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaukos Corporation | $591.90 | 16 |
| Carl Zeiss Meditec USA, Inc. | $143.97 | 1 |
| Dompe US, Inc. | $55.07 | 2 |
| Sight Sciences, Inc. | $49.59 | 1 |
| Rxsight Inc | $32.33 | 1 |
What the 2025 payments were for
- Food and Beverage$1,031 · 27 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Ophthalmology providers in Vestavia
- 1063730596
- 1194115428
- 1780799684
- 1669057535
- 1346509718