Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Nephrology

Holly J. Kramer, MD

Works at hospitals in Maywood, IL · Illinois

Summary

Holly J. Kramer, MD (Nephrology) is listed by Medicare at 1 hospital in Maywood, IL. NPI 1003893975. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Holly J. Kramer, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

NephrologyPrimary specialty
YesAccepts Medicare assignment
32Years since medical school (graduated 1994)
Indiana Medical College, School Of Medicine Of Purdue UniversityMedical school
FemaleGender (as listed)
Loyola University Medical CenterGroup practice

Quick answers

Which hospitals does Holly J. Kramer work at?
Medicare's official clinician data lists Holly J. Kramer at 1 hospital: Loyola University Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Holly J. Kramer see patients?
Medicare's clinician data lists 1 practice location in Maywood, IL. Call before your visit to confirm the address.
What is Holly J. Kramer's specialty?
Medicare lists Nephrology as the primary specialty, and also Internal Medicine.
Does Holly J. Kramer accept Medicare assignment?
Yes. Medicare's clinician data says Holly J. Kramer accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Holly J. Kramer?
(708) 216-9000, as listed in official Medicare / NPI Registry data.
What is Holly J. Kramer's NPI number?
1003893975. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Holly J. Kramer works

Medicare's Facility Affiliation Data lists Holly J. Kramer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Holly J. Kramer is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Holly J. Kramer as a member of this group (CMS data updated 2026-10-02).

  • Loyola University Medical Center953 clinicians in the group

Specialties

Find other Nephrology doctors in Illinois →

Other nephrologists in Maywood

Clinicians with the same Medicare primary specialty in Maywood, IL — not a recommendation.

All nephrologists in Maywood →

Clinician information

CredentialMD
Medical schoolIndiana Medical College, School Of Medicine Of Purdue University
Graduation year1994
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1003893975
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians