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Anesthesiology Assistant

Jennifer J. Effrein, AA

Works at hospitals in Aurora, CO · Colorado

Summary

Jennifer J. Effrein, AA is an anesthesiologist assistant at 12605 E 16th Ave, Uchealth Anschutz Medical Campus, Aurora, CO 80045. Phone: (720) 848-0000. Accepts Medicare assignment. In 2024, Jennifer J. Effrein had 107 Original Medicare patients and 110 services. NPI 1083320980. 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 assistant (Medicare lists Anesthesiology Assistant)
  • Address: 12605 E 16th Ave, Uchealth Anschutz Medical Campus, Aurora, CO 80045 · Directions
  • Phone: (720) 848‑0000
  • Medicare: Accepts Medicare assignment
  • Hospital: University of Colorado Hospital Authority
  • Group practice: University Physicians Incorporated
  • School: University Of Colorado School Of Medicine, Aurora · graduated 2022
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Jennifer J. Effrein, 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 Jennifer J. Effrein accept Medicare assignment?
Yes. Medicare's clinician data says Jennifer J. Effrein 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 Jennifer J. Effrein see?
In 2024, CMS data shows 107 Original Medicare patients and 110 services for Jennifer J. Effrein. This counts Original Medicare only and measures volume, not quality.
What is Jennifer J. Effrein's NPI number?
1083320980. 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 Jennifer J. Effrein, 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 patients107
Services billed to Medicare110
Different services or procedures47
Participating Medicare providerYes
Average age of these patients69

Most frequent services

  1. Anesthesia for other procedure on large bowel using an endoscope (00811)15 services
  2. Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)14 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 pressure73%
  • High cholesterol68%
  • Arthritis47%
  • Chronic kidney disease40%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)30%
  • Ischemic heart disease29%

Hospitals where Jennifer J. Effrein works

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

Group practices

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

  • University Physicians Incorporated3,215 clinicians in the group

Specialties

Find other clinicians: Anesthesiology Assistant, Colorado →

Other anesthesiologist assistants in Aurora

Clinicians with the same Medicare primary specialty in Aurora, CO — not a recommendation.

All anesthesiologist assistants in Aurora →

Other clinicians in University Physicians Incorporated

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

Clinician information

CredentialAA
SchoolUniversity Of Colorado School Of Medicine, Aurora
Graduation year2022
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1083320980
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