G Caleb Alexander, MD
NPI 1356402184ActiveIndividual· Internal Medicine· Burr Ridge, IL
Internal Medicine (MD) in Burr Ridge, Illinois, trained at Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $16,485 for 402 claims, against $10,726 paid for services in 2024. Pfizer Inc. reported $467.00 in payments in 2025, mostly travel and lodging.
Overview
| NPI | 1356402184 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 13, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036104441 | IL |
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 - Internal Medicine (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 53 |
|---|---|
| Services billed | 137 across 15 procedure codes |
| Paid by Medicare | $10,726 |
Part D prescriptions in 2024
| Prescriptions (claims) | 402 · 918 30-day fills |
|---|---|
| Patients | 81 |
| Total drug cost | $16,485 |
| Generic share | 95% of claims |
Education and affiliations
| Medical school | Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Internal Medicine |
Medical group
- Johns Hopkins UniversityBaltimore, MD · 2,909 clinicians
Hospital affiliation
- Johns Hopkins Hospital, theBaltimore, MD
Industry payments (Open Payments)
- 2025$467.00 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $467.00 | 1 |
What the 2025 payments were for
- Travel and Lodging$467.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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