Dr. Holly Kramer, MD
Nephrology (Kidney) (Nephrology Physician)
2160 S First Ave, 101-1740 Loyola University Medical Center
Maywood, IL 60153
Who else practices at this address →
Cook County includes primary care (3% of residents) and mental health (4% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Medical school
- Indiana Medical College, School of Medicine of Purdue University (1994)
- Years since graduation
- 32
- In the NPI registry since
- 2005
- Medicare patients seen, 2024
- 55
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 1994Medical school: Indiana Medical College, School of Medicine of Purdue University
- 2005Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Nephrology Physician primary
IL license 36106749
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Loyola University Medical Center Maywood, IL
Medical groups
- Loyola University Medical Center (953 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 55
- Services billed
- 113
- Patients’ average age
- 75
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 20-29 minutes | 64 | 31 |
| New patient office or other outpatient visit, 30-44 minutes | 15 | 15 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 3 companies reported 9 payments worth $21,079 in total to this clinician.
| Bayer HealthCare Pharmaceuticals Inc. | $17,549 |
|---|---|
| Eli Lilly and Company | $2,280 |
| Alexion Pharmaceuticals, Inc. | $1,250 |
| Consulting Fee | $17,158 |
|---|---|
| Compensation for services other than consulting (speaking, faculty) | $2,280 |
| Travel and Lodging | $1,641 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Bayer HealthCare Pharmaceuticals Inc. Oct 6, 2025 | Consulting Fee Kerendia · Cardio-Renal | $9,450 |
| Bayer HealthCare Pharmaceuticals Inc. Jun 21, 2025 | Consulting Fee Kerendia · Cardio-Renal | $6,458 |
| Eli Lilly and Company Sep 4, 2025 | Compensation for services other than consulting (speaking, faculty) | $2,280 |
| Bayer HealthCare Pharmaceuticals Inc. Oct 6, 2025 | Travel and Lodging Kerendia · Cardio-Renal · travel to Anaheim, CA · in-kind | $703 |
| Alexion Pharmaceuticals, Inc. Dec 15, 2025 | Consulting Fee | $625 |
| Alexion Pharmaceuticals, Inc. Dec 15, 2025 | Consulting Fee | $625 |
| Bayer HealthCare Pharmaceuticals Inc. Oct 5, 2025 | Travel and Lodging Kerendia · Cardio-Renal · travel to Anaheim, CA · in-kind | $490 |
| Bayer HealthCare Pharmaceuticals Inc. Oct 5, 2025 | Travel and Lodging Kerendia · Cardio-Renal · travel to Anaheim, CA · in-kind | $224 |
| Bayer HealthCare Pharmaceuticals Inc. Oct 6, 2025 | Travel and Lodging Kerendia · Cardio-Renal · travel to Anaheim, CA · in-kind | $224 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.