facebook tracking Winnebago Mental Health Institute: 4100 Treffert Dr - Winnebago, WI

Winnebago Mental Health Institute, Winnebago, WI

4100 Treffert Dr, Winnebago, WI 54985Winnebago County

Psychiatric hospital 335 beds (Medicare cost report FY2025) No ER listed in Medicare data

Call (920) 235-4910 Directions (opens Google Maps)

Independent directory · data from CMS, not from this hospital

Winnebago Mental Health Institute is a public psychiatric hospital in Winnebago, Wisconsin. CMS records show it does not provide emergency services. According to HospitalsInEachState.com's analysis of the July 2026 CMS release, it reported 335 beds and 3,023 inpatient discharges to Medicare for fiscal year 2025. Medicare (CMS) has not published an overall star rating for Winnebago Mental Health Institute.

In a mental health crisis? Free, 24/7 Suicide & Crisis Lifeline.
Call 988 Text 988 Chat online (opens 988lifeline.org)
Emergency? Call 911.
Nearest ER 4.9 miAurora Medical Center Oshkosh
Medicare star ratingNot ratedReason below
Beds335Medicare cost report FY2025

CMS's overall star rating covers general acute care and critical access hospitals; psychiatric hospitals are not rated.

Source: CMS Care Compare, July 2026 releaseER figures are medians, not live waitsAbout the data

Visiting Winnebago Mental Health Institute

Address 4100 Treffert Dr
Winnebago, WI 54985
County: Winnebago Directions Apple Maps Call (920) 235-4910
Emergency room No ER listed in Medicare data. In an emergency call 911 or go to the nearest ER: Aurora Medical Center Oshkosh, 4.9 miles away. ER or urgent care?
What to bring
  • Photo ID and your insurance, Medicare or Medicaid card
  • A list of your medicines, doses and allergies
  • Your doctor's name and phone number
  • A phone charger
Visiting hours and parking vary: call ahead.

Quick answers about Winnebago Mental Health Institute

What is the phone number for Winnebago Mental Health Institute?

The main phone number for Winnebago Mental Health Institute is (920) 235-4910, from Medicare's hospital records.

Call (920) 235-4910
What is the address of Winnebago Mental Health Institute?

Winnebago Mental Health Institute is at 4100 Treffert Dr, Winnebago, WI 54985.

Directions (opens Google Maps)
Does Winnebago Mental Health Institute have an emergency room?

No emergency room is listed for Winnebago Mental Health Institute in Medicare data. For an emergency, call 911 or go to the nearest ER.

Quality and performance

Centers for Medicare & Medicaid Services · data as of July 2026

Type Psychiatric
Ownership Government

CMS has not reported an emergency department wait time for Winnebago Mental Health Institute. That usually means too few cases to report, or no emergency department.

Source: CMS Hospital General Information and Timely & Effective Care. Wait times are a median over a past 12-month reporting period, not live data. Not affiliated with CMS or with Winnebago Mental Health Institute. For a medical emergency, call 911.

Other psychiatric hospitals in Wisconsin · How we source this data · Something wrong on this page? Tell us

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Health insurance at Winnebago Mental Health Institute

Original Medicare: Medicare-certified, so it can bill Original Medicare (Medicare number 524002). Medicare Advantage plans have their own networks, which this section does not cover.

Adults in Wisconsin qualify for Medicaid up to 95% of the poverty line. Ask the hospital which Wisconsin Medicaid plans it takes.

Is Winnebago Mental Health Institute in your plan?

For HealthCare.gov Marketplace plans (2027). Enter your ZIP code, then pick your insurer and plan. We only use your ZIP code to find plans; we don't save it.

Live from HealthCare.gov's Marketplace provider data, as reported by insurers. Networks change: confirm with your insurer before you get care. Not affiliated with HealthCare.gov or CMS.

Source: the insurers' 2027 machine-readable provider files listed in the CMS Marketplace public use files, loaded November 4, 2026, matched to hospitals by NPI from CMS Hospital Enrollments. How we match networks to hospitals Networks change; confirm with your insurer before you go.

Care after a stay at Winnebago Mental Health Institute

Medicare-certified providers near this hospital, with their CMS ratings. A hospital discharge planner can make the referral.

Skilled nursing facilities nearby

  • 0.4mi Park View Health Center Oshkosh, WI · 168 beds Medicare overall 5 of 5 stars · Short-stay quality 4 of 5
  • 2.3mi Edenbrook of Oshkosh Oshkosh, WI · 110 beds Medicare overall 3 of 5 stars · Short-stay quality 1 of 5
  • 3.9mi Evergreen Health Center Oshkosh, WI · 80 beds Medicare overall 5 of 5 stars · Short-stay quality 4 of 5

Skilled nursing ratings and inspections at Nursing Homes In Each State

Dialysis centers nearby See more

Home health agencies nearby See more

Hospice care providers nearby See more

Source: CMS Care Compare. Distances are approximate.

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Psychiatric care quality

In a mental health crisis? Free, 24/7 Suicide & Crisis Lifeline.
Call 988 Text 988 Chat online (opens 988lifeline.org)
Emergency? Call 911.

CMS Inpatient psychiatric care Quality Reporting Program, data through March 2025

Winnebago Mental Health Institute reports inpatient psychiatric quality results to Medicare. Follow-up within 7 days: 19% here, against 37% nationally. Where CMS compares facilities statistically, this one is no different from the national rate.

After discharge

Follow-up within 7 days Patients who had a follow-up visit with a mental health provider within 7 days of leaving the hospital. Based on 242 patients. Jul 2023 – Jun 2024.
19% U.S. 37% · top 10% 53%
Follow-up within 30 days Patients who had a follow-up visit with a mental health provider within 30 days of leaving. Based on 242 patients. Jul 2023 – Jun 2024.
53% U.S. 60% · top 10% 77%
Kept taking prescribed medication Medicare patients who filled a prescription for their psychiatric medication after discharge. Based on 304 patients. Jul 2022 – Jun 2024.
88% U.S. 77% · top 10% 88%
Readmitted within 30 days Patients readmitted to any hospital within 30 days of discharge (risk-adjusted). CMS compares each facility with the national rate. Based on 584 patients. Jul 2022 – Jun 2024.
19% U.S. 19% Same as national
Discharge record sent Patients whose discharge record, with the required details, was sent with them or to their next provider. Based on 723 patients. Jan 2024 – Dec 2024.
80% U.S. 63% · top 10% 99%

During the stay

Physical restraint use Hours patients spent in physical restraints for every 1,000 hours of inpatient care. Lower is better. Jan 2024 – Dec 2024.
1.89 U.S. 0.29
Seclusion use Hours patients spent in seclusion for every 1,000 hours of inpatient care. Lower is better. Jan 2024 – Dec 2024.
2.80 U.S. 0.36
Screened for metabolic disorders Patients on antipsychotic medication who were screened for metabolic problems such as diabetes and high cholesterol. Based on 469 patients. Jan 2024 – Dec 2024.
93% U.S. 82% · top 10% 100%
Alcohol use help offered Patients with risky alcohol use who were given or offered a brief intervention. Based on 41 patients. Jan 2024 – Dec 2024.
73% U.S. 60% · top 10% 100%
Addiction treatment offered at discharge Patients with an alcohol or drug use disorder who were given or offered treatment when they left. Based on 201 patients. Jan 2024 – Dec 2024.
34% U.S. 72% · top 10% 100%
Tobacco treatment offered at discharge Tobacco users who were given or offered help to quit when they left. Based on 232 patients. Jan 2024 – Dec 2024.
44% U.S. 58% · top 10% 98%
Flu vaccination checked Patients assessed for and, where appropriate, given a flu vaccine. Based on 324 patients. Oct 2024 – Mar 2025.
40% U.S. 76% · top 10% 99%

Source: CMS Inpatient psychiatric care Quality Reporting Program (Provider Data Catalog). Better/worse labels appear only where CMS itself compared the facility with the national rate; other figures are shown next to the national figure for context. If you or someone you know is in crisis, call or text 988 (Suicide and Crisis Lifeline) or call 911.

Psychiatric hospitals by state In Wisconsin

Treatment programs near Winnebago Mental Health Institute

Mental health and substance use programs within 30 miles, for care before or after a hospital stay. In a crisis, call or text 988 (Suicide & Crisis Lifeline) or call 911.

Source: SAMHSA, FindTreatment.gov. Call to confirm services, insurance and openings.

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Size and finances

Medicare cost report · fiscal year ending Jun 2025

Beds
335
Reported to Medicare, FY2025
Employees
747
Full-time equivalent
Discharges
3,023
Inpatient stays a year
Patient revenue
$65.7 million
Net of discounts

As reported by the hospital to CMS; not audited. Operating margin is income from patient care divided by net patient revenue and leaves out investment income and donations. Compare Wisconsin hospital finances.

Who owns Winnebago Mental Health Institute

Medicare enrollment and ownership records (PECOS)

Medicare lists the hospital's legal name as State of Wisconsin, a non-profit organization.

State of Wisconsin Operational or managerial control · 100% · since 2015
State of Wisconsin Owns 5% or more directly · 100% · since 2015

Organizations with 5% or more ownership (directly or through other companies), partnership interests or operational control, as the hospital reported them to Medicare. Records can lag behind recent sales. Individuals are not listed. Who owns America's hospitals.

The area around Winnebago Mental Health Institute

HRSA shortage designations and BLS pay data

Nurse pay: registered nurses in Wisconsin earn a median $95,530 a year. Healthcare salaries in Wisconsin.

Shortage areas are designated by the Health Resources and Services Administration where there are too few primary care, mental health or dental providers for the population; scores run from 0 to 25 for primary and mental health care and 0 to 26 for dental care, higher meaning greater need.

Closest other hospitals

4.9 mi Aurora Medical Center Oshkosh Oshkosh, WI 2 hr 2 min ER visit 8.5 mi ThedaCare Regional Medical Center - Neenah Neenah, WI 2 hr 22 min ER visit 8.5 mi Children's Hospital of Wisconsin Fox Valley Neenah, WI 13 mi St Elizabeth Hsptl Appleton, WI 2 hr 23 min ER visit 16 mi Appleton Medical Center Appleton, WI 2 hr 27 min ER visit

Healthcare pay in Wisconsin

Registered nurses across Wisconsin (all employers) earned a median of $95,530 a year (BLS, May 2025).Registered Nurse (RN) salary in WisconsinPsychiatric Technician salary in WisconsinNurse Practitioner salary in WisconsinHealthcare salaries in Wisconsin

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