COLUMBIA ST. MARY'S HOSPITAL MILWAUKEE, INC
NPI 1811926132
Psychiatric Unit in Milwaukee, WI

Active since June 30, 2006
3/5
Hospital Overall Rating
2323 N LAKE DRIVE, MILWAUKEE, WI 53211(414) 585-1000 Get Directions Write a Review

NPPES record last updated: July 9, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 9, 2026, Dec 31, 2024, Nov 22, 2021 and 3 more (6 updates tracked since 2018).

About Columbia St. Mary's Hospital Milwaukee, Inc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

COLUMBIA ST. MARY'S HOSPITAL MILWAUKEE, INC (NPI 1811926132), doing business as Ascension Columbia St Mary's Hospital Milwaukee, is a healthcare organization registered as a psychiatric unit in Milwaukee, Wisconsin and active in the NPI registry since June 2006. The organization lists Susan Dwyer, Cfo, as its authorized official.

NPPES Registry Identity

NPI1811926132
Entity TypeOrganization
Primary Taxonomy273R00000X
Legal Business NameCOLUMBIA ST. MARY'S HOSPITAL MILWAUKEE, INC
Location Address2323 N LAKE DRIVEMilwaukee, WI 53211-4508
Mailing AddressPo Box 773380Chicago, IL 60677-3380 · (414) 465-3736
Organization SubpartYesParent: Columbia St. Mary's Hospital Milwaukee Inc
Authorized OfficialSusan DwyerCfo · (414) 465-3093
Enumeration DateJune 30, 2006
Last NPPES UpdateJuly 9, 20266 updates tracked since enumeration
NPPES CertifiedJuly 9, 2026
✔ NPI 1811926132 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatric UnitHospital Units
Taxonomy Code273R00000X
License✔ Licensed in WI · 111
Definition
In general, a distinct unit of a hospital that provides acute or long-term care to emotionally disturbed patients, including patients admitted for diagnosis and those admitted for treatment of psychiatric problems on the basis of physicians' orders and approved nursing care plans. Long-term care may include intensive supervision to the chronically mentally ill, mentally disordered or other mentally incompetent persons; (2) For Medicare, a distinct part of a general acute care hospital admitting only patients whose admission to the unit is required for active treatment, whose treatment is of an intensity that can be provided only in an inpatient hospital setting, and whose condition is described by a psychiatric principal diagnosis contained in the Third Edition of the American Psychiatric Association Diagnostic and Statistical Manual or in Chapter 5 (Mental Disorders) of the International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM). The unit must furnish, through the use of qualified personnel, psychological services, social work services, psychiatric nursing, occupational therapy, and recreational therapy. The unit must maintain medical records that permit determination of the degree and intensity of treatment provided to individuals who are furnished services in the unit; the unit must meet special staff requirements in that the unit must have adequate numbers of qualified professional and supportive staff to evaluate inpatients, formulate written, individualized, comprehensive treatment plans, provide active treatment measures and engage in discharge planning.
2323 N LAKE DRIVE, Milwaukee, WI 53211

Other Names 1

Doing Business AsAscension Columbia St Mary's Hospital Milwaukee

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Columbia St. Mary's Hospital Milwaukee, Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

854

Medicare enrollment records show 854 clinicians reassign Medicare billing to Columbia St. Mary's Hospital Milwaukee, Inc, which bills Medicare for the services they deliver. Of these, 59 practice at this address and 357 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 59

Nurse Practitioner134
Internal Medicine125
Family Practice99
Diagnostic Radiology73
Hospitalist58
Obstetrics/Gynecology51
Neurology26
Psychiatry24
51 other specialties264

Nearest to this location (20)

See all 854
Pathology
NPI 1881796001
2323 N LAKE DR
Milwaukee, WI 53211
(414) 585-1448
✔ PECOS✔ Accepts MedicareSame address
Certified Nurse Midwife (CNM)
NPI 1679347868
2323 N LAKE DR
Milwaukee, WI 53211
(414) 585-1941
✔ PECOS✔ Accepts MedicareSame address
Anesthesiology
NPI 1992788814
2323 N LAKE DR
Milwaukee, WI 53211
(414) 291-1000
✔ PECOS✔ Accepts MedicareSame address
Internal Medicine
NPI 1528322674
2323 N LAKE DR
Milwaukee, WI 53211
(414) 270-4932
✔ PECOSSame address
Psychiatry
NPI 1912438417
2323 N LAKE DR STE 1031
Milwaukee, WI 53211
(414) 585-1620
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1689224735
2301 N LAKE DR
Milwaukee, WI 53211
(414) 272-2876
✔ PECOS✔ Accepts MedicareSame address
Registered Dietitian or Nutrition Professional
NPI 1295347227
2323 N LAKE DR
Milwaukee, WI 53211
(414) 585-1297
✔ Accepts MedicareSame address
Hospitalist
NPI 1376550806
2323 N LAKE DR
Milwaukee, WI 53211
(414) 270-4932
✔ PECOS✔ Accepts MedicareSame address
Clinical Psychologist
NPI 1689167694
2301 N LAKE DR
Milwaukee, WI 53211
(414) 291-1000
✔ PECOS✔ Accepts MedicareSame address
Thoracic Surgery
NPI 1619243813
2301 N LAKE DR
Milwaukee, WI 53211
(414) 585-1000
✔ PECOS✔ Accepts MedicareSame address
Podiatry
NPI 1598148058
2301 N LAKE DR
Milwaukee, WI 53211
(414) 291-1000
✔ PECOS✔ Accepts MedicareSame address
Neurology
NPI 1134582729
2301 N LAKE DR
Milwaukee, WI 53211
(414) 585-1000
✔ PECOS✔ Accepts MedicareSame address
Peripheral Vascular Disease
NPI 1881698496
2301 N LAKE DR
Milwaukee, WI 53211
(608) 738-6827
✔ PECOS✔ Accepts MedicareSame address
Family Practice
NPI 1811429459
2301 N LAKE DR
Milwaukee, WI 53211
(414) 585-1000
✔ PECOS✔ Accepts MedicareSame address
Cardiovascular Disease (Cardiology)
NPI 1891014148
2301 N LAKE DR STE 406
Milwaukee, WI 53211
(414) 298-7230
✔ PECOS✔ Accepts MedicareSame address
Epileptologists
NPI 1295778629
2301 N LAKE DR
Milwaukee, WI 53211
(414) 585-6763
✔ PECOS✔ Accepts MedicareSame address
Qualified Audiologist
NPI 1114139409
2315 N LAKE DR SUITE 1005
Milwaukee, WI 53211
(414) 271-4141
✔ Accepts MedicareSame address
Obstetrics/Gynecology
NPI 1871693176
2315 N LAKE DR SUITE 501
Milwaukee, WI 53211
(414) 289-9668
✔ PECOSSame address
Physical Medicine and Rehabilitation
NPI 1982090817
2323 N LAKE DR
Milwaukee, WI 53211
(414) 298-6700
✔ PECOS✔ Accepts MedicareSame address
Interventional Pain Management
NPI 1114900677
2301 N LAKE DR
Milwaukee, WI 53211
(414) 291-1075
✔ PECOSSame address
See all 854 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Quality Ratings CMS Care Compare

Quality and patient-experience ratings for Ascension Columbia St Mary's Hospital Milwaukee (CMS certification number 520051), from CMS Care Compare.

Ascension Columbia St Mary's Hospital Milwaukee

Acute Care Hospitals · Milwaukee, WI
3/5 CMS Overall Rating
OwnershipVoluntary non-profit - Church
CMS Certification Number520051
Location2323 N Lake DrMilwaukee, WI 53211 · Milwaukee County · (414) 585-1374
Emergency services Birthing friendly Meaningful use of EHRs

Patient Experience

HCAHPS patient survey · Jan 2023 – Dec 2023
2/5 summary rating
Nurse communication
2/5
Doctor communication
3/5
Staff responsiveness
2/5
Communication about medicines
2/5
Discharge information
2/5
Care transition
2/5
Cleanliness
2/5
Quietness
3/5
Overall hospital rating
2/5
Recommend hospital
3/5
Star ratings summarize responses from patients surveyed after discharge, collected through the CMS HCAHPS program.

Complications & Deaths 19

Rate of complications for hip/knee replacement patients
Cases too small to report
Death rate for heart attack patients
12.3% No different than national
Death rate for CABG surgery patients
3.2% No different than national
Death rate for COPD patients
8.5% No different than national
Death rate for heart failure patients
11.7% No different than national
Death rate for pneumonia patients
14.7% No different than national

Infections 6

Central Line Associated Bloodstream Infection (ICU + select Wards)
8 observed cases · 18.071 predicted · 13,758 patient days
0.443 Better than the national benchmark
Catheter Associated Urinary Tract Infections (ICU + select Wards)
6 observed cases · 18.3 predicted · 12,589 patient days
0.328 Better than the national benchmark
SSI - Colon Surgery
2 observed cases · 5.173 predicted · 177 patient days
0.387 No different than national
SSI - Abdominal Hysterectomy
3 observed cases · 1.425 predicted · 165 patient days
2.105 No different than national
MRSA Bacteremia
4 observed cases · 5.502 predicted · 85,281 patient days
0.727 No different than national
Clostridium Difficile (C.Diff)
29 observed cases · 36.228 predicted · 76,514 patient days
0.800 No different than national

Unplanned Hospital Visits 14

Hospital return days for heart attack patients
157 days per 100 discharges
Hospital return days for heart failure patients
272 days per 100 discharges
Hospital return days for pneumonia patients
194 days per 100 discharges
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)
1508 No different than national
Rate of inpatient admissions for patients receiving outpatient chemotherapy
147 No different than national
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapy
147 No different than national

Timely & Effective Care 20

Emergency department volume
High
Admit Decision Time to ED Departure Time for Admitted Patients - non psychiatric/mental health disorders
525 minutes
Admit Decision Time to ED Departure Time for Admitted Patients - psychiatric/mental health disorders
806 minutes
Percentage of healthcare personnel who are up to date with COVID-19 vaccinations
1.1%
Average (median) time patients spent in the emergency department before leaving from the visit A lower number of minutes is better
162 minutes
Average (median) time patients spent in the emergency department before leaving from the visit- Psychiatric/Mental Health Patients. A lower number of minutes is better
194 minutes

Maternal Health 2

Elective Delivery
50%
Maternal Morbidity Structural Measure
Yes

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Columbia St. Mary's Hospital Milwaukee, Inc's NPI number?

The NPI number for Columbia St. Mary's Hospital Milwaukee, Inc is 1811926132. It was assigned to this organization in the NPPES registry on June 30, 2006. The provider is doing business as Ascension Columbia St Mary's Hospital Milwaukee.

Where is Columbia St. Mary's Hospital Milwaukee, Inc located?

Columbia St. Mary's Hospital Milwaukee, Inc is located at 2323 N Lake Drive, Milwaukee, WI 53211. The listed phone number is (414) 585-1000.

What is Columbia St. Mary's Hospital Milwaukee, Inc's specialty?

The primary specialty registered for this NPI is Psychiatric Unit with taxonomy code 273R00000X.

Is Columbia St. Mary's Hospital Milwaukee, Inc enrolled in Medicare?

Yes. Columbia St. Mary's Hospital Milwaukee, Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Columbia St. Mary's Hospital Milwaukee, Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 854 clinicians in 59 Medicare specialties reassign their Medicare billing to Columbia St. Mary's Hospital Milwaukee, Inc. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Nurse Practitioner (134), Internal Medicine (125) and Family Practice (99). Of these, 59 practice at this address and 357 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Is Columbia St. Mary's Hospital Milwaukee, Inc a Medicare-certified hospital?

Yes. Ascension Columbia St Mary's Hospital Milwaukee is a Medicare-certified hospital (Acute Care Hospitals). The hospital provides emergency services.

What quality rating does Columbia St. Mary's Hospital Milwaukee, Inc have?

CMS rates Ascension Columbia St Mary's Hospital Milwaukee 3 out of 5 stars overall on Care Compare, based on measures of safety, patient experience and outcomes. The full measure detail is in the Hospital Quality Ratings section above.

What insurance does Columbia St. Mary's Hospital Milwaukee, Inc accept?

Health plans from Anthem Blue Cross and Blue Shield and Network Health list Columbia St. Mary's Hospital Milwaukee, Inc as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Columbia St. Mary's Hospital Milwaukee, Inc was last updated on July 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.