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

Neurology

Jonathan W. Florczak, MD

Works at hospitals in Milwaukee, WI · Wisconsin

Summary

Dr. Jonathan W. Florczak, MD is a neurologist at 8701 W Watertown Plank, Milwaukee, WI 53226. Phone: (414) 805-3666. Accepts Medicare assignment. In 2024, Jonathan W. Florczak had 73 Original Medicare patients and 149 services. NPI 1942213996. 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.

  • Specialty: Neurologist (Medicare lists Neurology)
  • Address: 8701 W Watertown Plank, Milwaukee, WI 53226 · Directions (1 more location)
  • Phone: (414) 805‑3666
  • Medicare: Accepts Medicare assignment
  • Hospital: Froedtert Memorial Lutheran Hospital
  • Group practice: The Medical College of Wisconsin Inc
  • Medical school: Indiana University School Of Medicine · graduated 2001 (25 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Jonathan W. Florczak, 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 Jonathan W. Florczak accept Medicare assignment?
Yes. Medicare's clinician data says Jonathan W. Florczak 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 Jonathan W. Florczak see?
In 2024, CMS data shows 73 Original Medicare patients and 149 services for Jonathan W. Florczak. This counts Original Medicare only and measures volume, not quality.
What is Jonathan W. Florczak's NPI number?
1942213996. 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 Jonathan W. Florczak, 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 patients73
Services billed to Medicare149
Different services or procedures15
Participating Medicare providerYes
Average age of these patients59

Most frequent services

  1. Injection of chemical for paralysis of facial and neck nerve muscles on both sides of face (64615)36 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)27 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)23 services
  4. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)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 cholesterol56%
  • Anxiety56%
  • Arthritis53%
  • Depression44%
  • High blood pressure42%
  • Asthma32%

Hospitals where Jonathan W. Florczak works

Medicare's Facility Affiliation Data lists Jonathan W. Florczak 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 Jonathan W. Florczak is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Jonathan W. Florczak as a member of this group (CMS data updated October 2, 2026).

  • The Medical College of Wisconsin Inc2,115 clinicians in the group

Specialties

Find other Neurology doctors in Wisconsin →

Other neurologists in Milwaukee

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

All neurologists in Milwaukee →

Other clinicians in The Medical College of Wisconsin Inc

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

Clinician information

CredentialMD
Medical schoolIndiana University School Of Medicine
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)1942213996
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