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Internal Medicine

Ronald I. Cohen, MD

Works at hospitals in Burlington, WI · Milwaukee, WI · West Allis, WI · Wisconsin

Summary

Dr. Ronald I. Cohen, MD is an internal medicine doctor at 4202 W Oakwood Park Ct, Franklin, WI 53132. Phone: (414) 423-5250. Accepts Medicare assignment. In 2024, Ronald I. Cohen had 272 Original Medicare patients and 1,076 services. NPI 1982697942. 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 Ronald I. Cohen, 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 Ronald I. Cohen accept Medicare assignment?
Yes. Medicare's clinician data says Ronald I. Cohen 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 Ronald I. Cohen see?
In 2024, CMS data shows 272 Original Medicare patients and 1,076 services for Ronald I. Cohen. This counts Original Medicare only and measures volume, not quality.
What is Ronald I. Cohen's NPI number?
1982697942. 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 Ronald I. Cohen, 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 patients272
Services billed to Medicare1,076
Different services or procedures30
Participating Medicare providerYes
Average age of these patients73

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)388 services
  2. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)153 services
  3. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)117 services
  4. Influenza vaccine split virus, preservative free (90662)47 services
  5. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)47 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 cholesterol63%
  • Arthritis42%
  • Diabetes31%
  • Ischemic heart disease28%
  • Anxiety26%

Hospitals where Ronald I. Cohen works

Medicare's Facility Affiliation Data lists Ronald I. Cohen 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 Ronald I. Cohen is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Ronald I. Cohen as a member of these groups (CMS data updated October 2, 2026).

  • Aurora Advanced Healthcare, Inc.1,124 clinicians in the group
  • Lakeshore Medical Clinic LLC379 clinicians in the group

Specialties

Find other Internal Medicine doctors in Wisconsin →

Other internal medicine doctors in Franklin

Clinicians with the same Medicare primary specialty in Franklin, WI — not a recommendation.

All internal medicine doctors in Franklin →

Other clinicians in Aurora Advanced Healthcare, 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)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1982697942
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