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

Nurse Practitioner

Karen R. Woolsey, NP

Works at hospitals in Oneida, NY · Reedsburg, WI · Watertown, NY … · New York, Wisconsin, Arizona

Summary

Karen R. Woolsey, NP is a nurse practitioner at 2000 N Dewey Ave, Reedsburg, WI 53959. Phone: (214) 666-9604. Accepts Medicare assignment. In 2024, Karen R. Woolsey had 165 Original Medicare patients and 173 services. NPI 1558728055. 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 Karen R. Woolsey, 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 Karen R. Woolsey accept Medicare assignment?
Yes. Medicare's clinician data says Karen R. Woolsey 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 Karen R. Woolsey see?
In 2024, CMS data shows 165 Original Medicare patients and 173 services for Karen R. Woolsey. This counts Original Medicare only and measures volume, not quality.
What is Karen R. Woolsey's NPI number?
1558728055. 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 Karen R. Woolsey, 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 patients165
Services billed to Medicare173
Different services or procedures6
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)80 services
  2. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)78 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 pressure75%
  • High cholesterol75%
  • Arthritis62%
  • Ischemic heart disease56%
  • Diabetes53%
  • Chronic kidney disease49%

Hospitals where Karen R. Woolsey works

Medicare's Facility Affiliation Data lists Karen R. Woolsey 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.

  • Oneida Health HospitalOneida, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330115
  • Reedsburg Area Medical CenterReedsburg, WI · Critical Access Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 521351
  • Samaritan Medical CenterWatertown, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330157
  • Valley View Medical CenterFort Mohave, AZ · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 030117
  • Wyoming CountyWarsaw, NY · Critical Access Hospital · Emergency services: listed by Medicare · CCN 331323

Practice locations

Addresses where Karen R. Woolsey is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Karen R. Woolsey as a member of these groups (CMS data updated October 2, 2026).

  • Apogee Medical Group, New York, PC120 clinicians in the group
  • Apogee Medical Group Inc82 clinicians in the group
  • Apogee Medical Group North Carolina71 clinicians in the group
  • Apogee Medical Group Wisconsin SC42 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, Wisconsin →

Other nurse practitioners in Reedsburg

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

All nurse practitioners in Reedsburg →

Other clinicians in Apogee Medical Group, New York, PC

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

Clinician information

CredentialNP
Graduation year2015
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1558728055
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