Holly Kramer, MD
NPI 1003893975ActiveIndividual· Internal Medicine, Nephrology· Maywood, IL
Internal Medicine, Nephrology (MD) in Maywood, Illinois, trained at Indiana Medical College, School of Medicine of Purdue University (class of 1994). Their prescriptions cost Medicare Part D more than their services did: $23,431 for 363 claims, against $8,044 paid for services in 2024. Bayer Healthcare Pharmaceuticals Inc. was the largest of 3 companies reporting payments in 2025, $21,079 in all, mostly consulting fees.
Overview
| NPI | 1003893975 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 30, 2005 |
| Last updated in NPPES | Nov 29, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 36106749 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nephrology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 55 |
|---|---|
| Services billed | 113 across 6 procedure codes |
| Paid by Medicare | $8,044 |
Part D prescriptions in 2024
| Prescriptions (claims) | 363 · 962 30-day fills |
|---|---|
| Patients | 63 |
| Total drug cost | $23,431 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Indiana Medical College, School of Medicine of Purdue University |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical group
- Loyola University Medical CenterMaywood, IL · 953 clinicians
Hospital affiliation
- Loyola University Medical CenterMaywood, IL
Industry payments (Open Payments)
- 2025$21,079 · 9 payments from 3 companies
- 2024$1,368 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bayer Healthcare Pharmaceuticals Inc. | $17,549 | 6 |
| Eli Lilly and Company | $2,280 | 1 |
| Alexion Pharmaceuticals, Inc. | $1,250 | 2 |
What the 2025 payments were for
- Consulting Fee$17,158 · 4 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$2,280 · 1 payment
- Travel and Lodging$1,641 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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