Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

COLUMBIA ST MARY'S HOSPITAL OZAUKEE, INC.
NPI 1740747559
Psychiatric Unit in Mequon, WI

Active since February 28, 2019
13111 N PORT WASHINGTON RD, MEQUON, WI 53097(262) 243-7388 Get Directions Write a Review

NPPES record last updated: July 17, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 17, 2026, Sep 29, 2021, Aug 30, 2019 and 1 more (4 updates tracked since 2019).

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

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

COLUMBIA ST MARY'S HOSPITAL OZAUKEE, INC. (NPI 1740747559), doing business as Ascension Columbia St Mary's Hospital Ozaukee, is a healthcare organization registered as a psychiatric unit in Mequon, Wisconsin and active in the NPI registry since February 2019. The organization lists Susan Dwyer, Cfo, as its authorized official.

NPPES Registry Identity

NPI1740747559
Entity TypeOrganization
Primary Taxonomy273R00000X
Legal Business NameCOLUMBIA ST MARY'S HOSPITAL OZAUKEE, INC.
Location Address13111 N PORT WASHINGTON RDMequon, WI 53097-2416
Mailing Address13111 N Port Washington RdMequon, WI 53097-2416 · (262) 243-7300
Organization SubpartNo
Authorized OfficialSusan DwyerCfo · (414) 465-3000
Enumeration DateFebruary 28, 2019
Last NPPES UpdateJuly 17, 20264 updates tracked since enumeration
NPPES CertifiedJuly 17, 2026
NPI 1740747559 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychiatric UnitHospital Units
Taxonomy Code273R00000X
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.
13111 N PORT WASHINGTON RD, Mequon, WI 53097

Other Names 1

Doing Business AsAscension Columbia St Mary's Hospital Ozaukee

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Student in an Organized Health Care Education/Training Program
13111 N PORT WASHINGTON RD
MEQUON, WI 53097
Internal Medicine (Cardiovascular Disease)
13111 N PORT WASHINGTON RD
MEQUON, WI 53097
Speech-Language Pathologist
13111 N PORT WASHINGTON RD
MEQUON, WI 53097
Pharmacist
13111 N PORT WASHINGTON RD
MEQUON, WI 53097
Social Worker (Clinical)
13111 N PORT WASHINGTON RD
THIENSVILLE, WI 53097
Physical Therapy Assistant
13111 N PORT WASHINGTON RD
MEQUON, WI 53097
Nurse Anesthetist, Certified Registered
13111 N PORT WASHINGTON RD
MEQUON, WI 53097
Emergency Medicine
13111 N PORT WASHINGTON RD, COLUMBIA ST. MARY'S - OZAUKEE CAMPUS
MEQUON, WI 53097

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 Ozaukee, Inc.'s NPI number?

The NPI number for Columbia St Mary's Hospital Ozaukee, Inc. is 1740747559. It was assigned to this organization in the NPPES registry on February 28, 2019. The provider is doing business as Ascension Columbia St Mary's Hospital Ozaukee.

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

Columbia St Mary's Hospital Ozaukee, Inc. is located at 13111 N Port Washington Rd, Mequon, WI 53097. The listed phone number is (262) 243-7388.

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

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

When was this NPI record last updated?

The NPPES record for Columbia St Mary's Hospital Ozaukee, Inc. was last updated on July 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 days 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.