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Internal Medicine

Ndudi C. Aniemeka, MD

Sees patients in Chicago, IL · Illinois

Summary

Dr. Ndudi C. Aniemeka, MD is an internal medicine doctor at 5219 W Madison St, Chicago, IL 60644. Phone: (773) 378-4823. Accepts Medicare assignment. In 2024, Ndudi C. Aniemeka had 87 Original Medicare patients and 544 services. NPI 1255447421. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 5219 W Madison St, Chicago, IL 60644 · Directions
  • Phone: (773) 378‑4823
  • Medicare: Accepts Medicare assignment
  • Medical school: graduated 1984 (42 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Ndudi C. Aniemeka, 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 Ndudi C. Aniemeka accept Medicare assignment?
Yes. Medicare's clinician data says Ndudi C. Aniemeka 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 Ndudi C. Aniemeka see?
In 2024, CMS data shows 87 Original Medicare patients and 544 services for Ndudi C. Aniemeka. This counts Original Medicare only and measures volume, not quality.
What is Ndudi C. Aniemeka's NPI number?
1255447421. 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 Ndudi C. Aniemeka, 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 patients87
Services billed to Medicare544
Different services or procedures19
Participating Medicare providerYes
Average age of these patients66

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)282 services
  2. Follow-up psychiatric collaborative care management, subsequent calendar month, first 60 minutes (99493)52 services
  3. Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes (99348)38 services
  4. Advance care planning, first 30 minutes (99497)38 services
  5. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)35 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 cholesterol61%
  • Diabetes55%
  • Arthritis46%
  • Depression30%
  • COPD29%

Practice locations

Addresses where Ndudi C. Aniemeka is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Internal Medicine doctors in Illinois →

Other internal medicine doctors in Chicago

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

All internal medicine doctors in Chicago →

Clinician information

CredentialMD
Graduation year1984 (42 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1255447421
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  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