John L. Baker, OD
NPI 1447243936ActiveIndividual· Optometrist· Chicago, IL
Optometrist (OD) in Chicago, Illinois, trained at Pennsylvania College of Optometry (class of 1984). In 2024 Medicare paid $2,075 for 25 patients, and Part D covered 60 of their prescriptions, 75% of them generic.
Overview
| NPI | 1447243936 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | OD |
| Sole proprietor | No |
| NPI issued | Aug 30, 2005 |
| Last updated in NPPES | Oct 6, 2025 |
| Certified by provider | Oct 6, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 046008191 | IL |
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 (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 25 |
|---|---|
| Services billed | 36 across 9 procedure codes |
| Paid by Medicare | $2,075 |
Part D prescriptions in 2024
| Prescriptions (claims) | 60 · 100 30-day fills |
|---|---|
| Patients | 11 |
| Total drug cost | $1,828 |
| Generic share | 75% of claims |
Education and affiliations
| Medical school | Pennsylvania College of Optometry |
|---|---|
| Graduation year | 1984 |
| Medicare specialty | Optometry |
Medical group
- Midwestern UniversityDowners Grove, IL · 115 clinicians
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 848 optometrists in Chicago · All optometrists in Illinois