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

Gynecological Oncology

Nikki L. Neubauer, MD

Works at hospitals in Oak Lawn, IL · Downers Grove, IL · Chicago, IL … · Illinois

Summary

Dr. Nikki L. Neubauer, MD is a gynecologic oncologist at 3825 Highland Ave, Suite 307, Downers Grove, IL 60515. Phone: (708) 422-3242. Accepts Medicare assignment. In 2024, Nikki L. Neubauer had 317 Original Medicare patients and 58,301 services. NPI 1598975336. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Nikki L. Neubauer, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Nikki L. Neubauer accept Medicare assignment?
Yes. Medicare's clinician data says Nikki L. Neubauer accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Nikki L. Neubauer see?
In 2024, CMS data shows 317 Original Medicare patients and 58,301 services for Nikki L. Neubauer. This counts Original Medicare only and measures volume, not quality.
What is Nikki L. Neubauer's NPI number?
1598975336. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Nikki L. Neubauer, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients317
Services billed to Medicare58,301
Different services or procedures105
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Injection, pembrolizumab, 1 mg (J9271)10,200 services
  2. Injection, paclitaxel, 1 mg (J9267)8,700 services
  3. Injection, eflapegrastim-xnst, 0.1 mg (J1449)4,884 services
  4. Injection, dexamethasone sodium phosphate, 1 mg (J1100)1,844 services
  5. Injection, ondansetron hydrochloride, per 1 mg (J2405)464 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)63%
  • Arthritis47%
  • Diabetes31%
  • Chronic kidney disease31%

Hospitals where Nikki L. Neubauer works

Medicare's Facility Affiliation Data lists Nikki L. Neubauer at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Advocate Christ Hospital & Medical CenterOak Lawn, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140208
  • Advocate Good Samaritan HospitalDowners Grove, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140288
  • Advocate Trinity HospitalChicago, IL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 140048
  • Elmhurst Memorial HospitalElmhurst, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140200
  • Palos Community HospitalPalos Heights, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140062

Practice locations

Addresses where Nikki L. Neubauer is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Nikki L. Neubauer as a member of this group (CMS data updated October 2, 2026).

  • Affiliated Oncologists LLC44 clinicians in the group

Specialties

Find other Gynecological Oncology doctors in Illinois →

Other gynecologic oncologists in Downers Grove

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

All gynecologic oncologists in Downers Grove →

Other clinicians in Affiliated Oncologists LLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolClvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University
Graduation year2005 (21 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1598975336
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians