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Internal Medicine

Jake E. Decker, MD

Works at hospitals in Milwaukee, WI · Kenosha, WI · Wisconsin

Summary

Jake E. Decker, MD (Internal Medicine) is listed by Medicare at 3 hospitals in Milwaukee, WI and Kenosha, WI. NPI 1639516230. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Jake E. Decker, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
13Years since medical school (graduated 2013)
Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv UniversityMedical school
MaleGender (as listed)
The Medical College of Wisconsin IncGroup practice

Quick answers

Which hospitals does Jake E. Decker work at?
Medicare's official clinician data lists Jake E. Decker at 3 hospitals: Aurora St Lukes Medical Center, Froedtert Memorial Lutheran Hospital and Froedtert South Inc.. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Jake E. Decker see patients?
Medicare's clinician data lists 2 practice locations, including Milwaukee, WI. Call before your visit to confirm the address.
What is Jake E. Decker's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Jake E. Decker accept Medicare assignment?
Yes. Medicare's clinician data says Jake E. Decker accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Jake E. Decker offer telehealth?
Medicare's clinician data says Jake E. Decker offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Jake E. Decker?
(414) 805-3666, as listed in official Medicare / NPI Registry data.
What is Jake E. Decker's NPI number?
1639516230. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Jake E. Decker works

Medicare's Facility Affiliation Data lists Jake E. Decker at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Jake E. Decker is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Jake E. Decker as a member of this group (CMS data updated 2026-10-02).

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

Specialties

Find other Internal Medicine doctors in Wisconsin →

Other internal medicine doctors in Milwaukee

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

All internal medicine doctors in Milwaukee →

Clinician information

CredentialMD
Medical schoolClvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University
Graduation year2013
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1639516230
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  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