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Anesthesiology

Jeffrey J. Entress, MD

Works at hospitals in Waukesha, WI · Wisconsin

Summary

Dr. Jeffrey J. Entress, MD is an anesthesiologist at 725 S American Ave, Waukesha, WI 53188. Phone: (262) 544-2011. Accepts Medicare assignment. In 2024, Jeffrey J. Entress had 50 Original Medicare patients and 76 services. NPI 1093790289. 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: Anesthesiologist (Medicare lists Anesthesiology)
  • Address: 725 S American Ave, Waukesha, WI 53188 · Directions
  • Phone: (262) 544‑2011
  • Medicare: Accepts Medicare assignment
  • Hospital: Waukesha Memorial Hospital
  • Group practice: Anex, S.C.
  • Medical school: Medical College Of Wisconsin · graduated 1982 (44 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Jeffrey J. Entress, 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 Jeffrey J. Entress accept Medicare assignment?
Yes. Medicare's clinician data says Jeffrey J. Entress 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 Jeffrey J. Entress see?
In 2024, CMS data shows 50 Original Medicare patients and 76 services for Jeffrey J. Entress. This counts Original Medicare only and measures volume, not quality.
What is Jeffrey J. Entress's NPI number?
1093790289. 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 Jeffrey J. Entress, 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 patients50
Services billed to Medicare76
Different services or procedures36
Participating Medicare providerYes
Average age of these patients74

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 cholesterol74%
  • Ischemic heart disease48%
  • Arthritis42%
  • Anxiety38%
  • Atrial fibrillation36%

Hospitals where Jeffrey J. Entress works

Medicare's Facility Affiliation Data lists Jeffrey J. Entress 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 Jeffrey J. Entress is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Jeffrey J. Entress as a member of this group (CMS data updated October 2, 2026).

  • Anex, S.C.38 clinicians in the group

Specialties

Find other Anesthesiology doctors in Wisconsin →

Other anesthesiologists in Waukesha

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

All anesthesiologists in Waukesha →

Other clinicians in Anex, S.C.

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

Clinician information

CredentialMD
Medical schoolMedical College Of Wisconsin
Graduation year1982 (44 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1093790289
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