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Nurse Practitioner

Jennifer A. Garrels

Works at hospitals in Winfield, IL · McHenry, IL · Illinois

Summary

Jennifer A. Garrels is a nurse practitioner at 10350 Haligus Rd, Huntley, IL 60142. Phone: (815) 788-7500. Accepts Medicare assignment. In 2024, Jennifer A. Garrels had 325 Original Medicare patients and 521 services. NPI 1801351648. 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 Jennifer A. Garrels, 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 A. Garrels accept Medicare assignment?
Yes. Medicare's clinician data says Jennifer A. Garrels 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 A. Garrels see?
In 2024, CMS data shows 325 Original Medicare patients and 521 services for Jennifer A. Garrels. This counts Original Medicare only and measures volume, not quality.
What is Jennifer A. Garrels's NPI number?
1801351648. 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 A. Garrels, 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 patients325
Services billed to Medicare521
Different services or procedures33
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)165 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)109 services
  3. Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen (87635)51 services
  4. Detection test by nucleic acid for multiple types influenza virus (87502)35 services
  5. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)26 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 pressure70%
  • High cholesterol68%
  • Arthritis51%
  • Ischemic heart disease32%
  • Anxiety25%
  • Diabetes24%

Hospitals where Jennifer A. Garrels works

Medicare's Facility Affiliation Data lists Jennifer A. Garrels 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 A. Garrels is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.

Group practices

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

  • Northwestern Medical Faculty Foundation4,503 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, Illinois →

Other nurse practitioners in Huntley

Clinicians with the same Medicare primary specialty in Huntley, IL — not a recommendation.

All nurse practitioners in Huntley →

Other clinicians in Northwestern Medical Faculty Foundation

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

Clinician information

Graduation year2018
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1801351648
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