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Internal Medicine

Nathalie Jean, MD

Works at hospitals in Rhinelander, WI · Wausau, WI · Carlinville, IL … · Wisconsin, Illinois

Summary

Dr. Nathalie Jean, MD is an internal medicine doctor at 20733 N Broad St, Carlinville, IL 62626. Phone: (217) 854-3141. Accepts Medicare assignment. In 2024, Nathalie Jean had 123 Original Medicare patients and 274 services. NPI 1700134293. 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 Nathalie Jean, 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 Nathalie Jean accept Medicare assignment?
Yes. Medicare's clinician data says Nathalie Jean 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 Nathalie Jean see?
In 2024, CMS data shows 123 Original Medicare patients and 274 services for Nathalie Jean. This counts Original Medicare only and measures volume, not quality.
What is Nathalie Jean's NPI number?
1700134293. 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 Nathalie Jean, 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 patients123
Services billed to Medicare274
Different services or procedures26
Participating Medicare providerYes
Average age of these patients75

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)102 services
  2. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)53 services
  3. Telephone medical discussion with physician, 11-20 minutes (99442)21 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%
  • Chronic kidney disease75%
  • Diabetes49%
  • Heart failure48%
  • Arthritis42%

Hospitals where Nathalie Jean works

Medicare's Facility Affiliation Data lists Nathalie Jean 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.

Practice locations

Addresses where Nathalie Jean is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.

Group practices

Medicare enrollment lists Nathalie Jean as a member of these groups (CMS data updated October 2, 2026).

  • Aspirus Rhinelander and Tomahawk Hospitals and Clinics, Inc.574 clinicians in the group
  • Mayo Clinic Health System-Southwest Wisconsin Region Inc534 clinicians in the group
  • Aspirus Medical Group, Inc.268 clinicians in the group
  • Aspirus Wausau Hospital Inc237 clinicians in the group
  • Aspirus Riverview Hospital and Clinics Inc172 clinicians in the group
  • Howard Young Medical Center Inc of Woodruff Wisconsin56 clinicians in the group

Specialties

Find other Internal Medicine doctors in Illinois →

Other internal medicine doctors in Carlinville

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

All internal medicine doctors in Carlinville →

Other clinicians in Aspirus Rhinelander and Tomahawk Hospitals and Clinics, Inc.

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

Clinician information

CredentialMD
Graduation year2001 (25 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1700134293
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