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ST JOSEPH MERCY HOSPITAL
NPI 1780658443
General Acute Care Hospital in Ypsilanti, MI

Active since February 17, 2006
4/5
Hospital Overall Rating
5301 HURON RIVER DRIVE, YPSILANTI, MI 48197(734) 712-3456 Get Directions Write a Review

NPPES record last updated: May 4, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 4, 2026, Jun 9, 2025, Jul 1, 2024 (3 updates tracked since 2024).

About St Joseph Mercy Hospital NPPES

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

ST JOSEPH MERCY HOSPITAL (NPI 1780658443), doing business as Trinity Heath Ann Arbor Hospital, is a healthcare organization registered as a general acute care hospital in Ypsilanti, Michigan and active in the NPI registry since February 2006. The organization lists Ariana Grace Raymond, Manager Provider Enrollment, as its authorized official.

NPPES Registry Identity

NPI1780658443
Entity TypeOrganization
Primary Taxonomy282N00000X
Legal Business NameST JOSEPH MERCY HOSPITAL
Location Address5301 HURON RIVER DRIVEYpsilanti, MI 48197-1051
Mailing Address20555 Victor PkwyLivonia, MI 48152-7031 · (734) 343-3922
Phone(734) 712-3456
Organization SubpartNo
Authorized OfficialAriana Grace RaymondManager Provider Enrollment · (734) 343-1466
Enumeration DateFebruary 17, 2006
Last NPPES UpdateMay 4, 20263 updates tracked since enumeration
NPPES CertifiedMay 4, 2026
✔ NPI 1780658443 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyGeneral Acute Care HospitalHospitals
Taxonomy Code282N00000X
Definition
An acute general hospital is an institution whose primary function is to provide inpatient diagnostic and therapeutic services for a variety of medical conditions, both surgical and non-surgical, to a wide population group. The hospital treats patients in an acute phase of illness or injury, characterized by a single episode or a fairly short duration, from which the patient returns to his or her normal or previous level of activity.
Also ListedObstetrics & Gynecology · Maternal & Fetal MedicineTaxonomy 207VM0101X · License 810030 (MI)
5301 HURON RIVER DRIVE, Ypsilanti, MI 48197
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Other Names 1

Doing Business AsTrinity Heath Ann Arbor Hospital

Other Identifiers 5

Medicaid1557023MI
Medicaid5172017MI
Other00042MI · Blue Cross And Bcn
Other100019MI · Care Choices
Other4480502MI · Aetna Sportsnet

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, Priority Health.Insurance ›

Hospital Quality Ratings CMS Care Compare

Quality and patient-experience ratings for Trinity Health Ann Arbor Hospital (CMS certification number 230156), from CMS Care Compare.

Trinity Health Ann Arbor Hospital

Acute Care Hospitals · Ann Arbor, MI
4/5 CMS Overall Rating
OwnershipVoluntary non-profit - Church
CMS Certification Number230156
Location5301 E Huron River DrAnn Arbor, MI 48106 · Washtenaw County · (734) 712-3456
Emergency services Birthing friendly Meaningful use of EHRs

Patient Experience

HCAHPS patient survey · Jan 2023 – Dec 2023
4/5 summary rating
Nurse communication
4/5
Doctor communication
4/5
Staff responsiveness
3/5
Communication about medicines
4/5
Discharge information
4/5
Care transition
4/5
Cleanliness
1/5
Quietness
3/5
Overall hospital rating
4/5
Recommend hospital
4/5
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
2.4 No different than national
Death rate for heart attack patients
11.2% No different than national
Death rate for CABG surgery patients
2.2% No different than national
Death rate for COPD patients
8.5% No different than national
Death rate for heart failure patients
9.3% Better than the national benchmark
Death rate for pneumonia patients
15.4% No different than national

Infections 6

Central Line Associated Bloodstream Infection (ICU + select Wards)
8 observed cases · 10.992 predicted · 9,970 patient days
0.728 No different than national
Catheter Associated Urinary Tract Infections (ICU + select Wards)
9 observed cases · 13.135 predicted · 9,276 patient days
0.685 No different than national
SSI - Colon Surgery
23 observed cases · 11.195 predicted · 433 patient days
2.054 Worse than the national rate
SSI - Abdominal Hysterectomy
0 observed cases · 1.801 predicted · 216 patient days
0.000 No different than national
MRSA Bacteremia
9 observed cases · 10.735 predicted · 153,907 patient days
0.838 No different than national
Clostridium Difficile (C.Diff)
29 observed cases · 72.282 predicted · 147,547 patient days
0.401 Better than the national benchmark

Unplanned Hospital Visits 14

Hospital return days for heart attack patients
501 days per 100 discharges
Hospital return days for heart failure patients
1121 days per 100 discharges
Hospital return days for pneumonia patients
732 more days than average per 100 discharges
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)
609 No different than national
Rate of inpatient admissions for patients receiving outpatient chemotherapy
233 No different than national
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapy
233 No different than national

Timely & Effective Care 15

Emergency department volume
Very high
Percentage of healthcare personnel who are up to date with COVID-19 vaccinations
0%
Hospital Harm - Severe Hypoglycemia
1
Hospital Harm - Severe Hyperglycemia
8
Healthcare workers given influenza vaccination
75%
Average (median) time patients spent in the emergency department before leaving from the visit A lower number of minutes is better
241 minutes

Maternal Health 4

Elective Delivery
33%
Maternal Morbidity Structural Measure
Yes
Risk Adjusted Severe Obstetric Complications (All)
3772
Risk Adjusted Severe Obstetric Complications (excluding blood-transfusion-only cases)
3772

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 St Joseph Mercy Hospital's NPI number?

The NPI number for St Joseph Mercy Hospital is 1780658443. It was assigned to this organization in the NPPES registry on February 17, 2006. The provider is doing business as Trinity Heath Ann Arbor Hospital.

Where is St Joseph Mercy Hospital located?

St Joseph Mercy Hospital is located at 5301 Huron River Drive, Ypsilanti, MI 48197. The listed phone number is (734) 712-3456.

What is St Joseph Mercy Hospital's specialty?

The primary specialty registered for this NPI is General Acute Care Hospital with taxonomy code 282N00000X.

Is St Joseph Mercy Hospital a Medicare-certified hospital?

Yes. Trinity Health Ann Arbor Hospital is a Medicare-certified hospital (Acute Care Hospitals). The hospital provides emergency services.

What quality rating does St Joseph Mercy Hospital have?

CMS rates Trinity Health Ann Arbor Hospital 4 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 St Joseph Mercy Hospital accept?

Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list St Joseph Mercy Hospital 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 St Joseph Mercy Hospital was last updated on May 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.