MARY GREELEY MEDICAL CENTER
NPI 1477539492
General Acute Care Hospital in Ames, IA

Q: What is Mary Greeley Medical Center's NPI number?

The NPI number for Mary Greeley Medical Center is 1477539492. It was assigned to this organization in the NPPES registry on December 21, 2005.

Q: What is Mary Greeley Medical Center's specialty?

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

Q: What quality rating does Mary Greeley Medical Center have?

CMS rates Mary Greeley Medical Center 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.

Active since December 21, 2005

4/5

Hospital Overall Rating

1111 DUFF AVE, AMES, IA 50010(515) 239-2011(515) 239-2060 Get Directions Write a Review

NPPES record last updated: November 21, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Mary Greeley Medical Center NPPES

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

MARY GREELEY MEDICAL CENTER (NPI 1477539492) is a healthcare organization registered as a general acute care hospital in Ames, Iowa and active in the NPI registry since December 2005. The organization lists Amber Deardorff, President/ceo, as its authorized official.

NPPES Registry Identity

NPI1477539492

Entity TypeOrganization

Primary Taxonomy282N00000X

Legal Business NameMARY GREELEY MEDICAL CENTER

Location Address1111 DUFF AVEAmes, IA 50010-5745

Mailing Address1111 Duff AveAmes, IA 50010-5745 · (515) 239-2011 · Fax (515) 239-2060

Phone(515) 239-2011

Fax(515) 239-2060

Organization SubpartNo

Authorized OfficialAmber DeardorffPresident/ceo · (515) 239-2105

Enumeration DateDecember 21, 2005

Last NPPES UpdateNovember 21, 2025

NPPES CertifiedNovember 21, 2025

✔ NPI 1477539492 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ 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.

1111 DUFF AVE, Ames, IA 50010

Open in Google Maps ↗

Other Identifiers 2

Medicaid0159145IA

Medicaid0600304IA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica.Insurance ›

Hospital Quality Ratings CMS Care Compare

Quality and patient-experience ratings for Mary Greeley Medical Center (CMS certification number 160030), from CMS Care Compare.

Mary Greeley Medical Center

Acute Care Hospitals · Ames, IA

4/5 CMS Overall Rating

OwnershipGovernment - Local

CMS Certification Number160030

Location1111 Duff AvenueAmes, IA 50010 · Story County · (515) 239-2011

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

3/5

Quietness

4/5

Overall hospital rating

4/5

Recommend hospital

5/5

Star ratings summarize responses from patients surveyed after discharge, collected through the CMS HCAHPS program.

Complications & Deaths 18

Rate of complications for hip/knee replacement patients

4.3 No different than national

Death rate for heart attack patients

10.7% No different than national

Death rate for COPD patients

8.9% No different than national

Death rate for heart failure patients

14.4% No different than national

Death rate for pneumonia patients

18.6% No different than national

Death rate for stroke patients

13.2% No different than national

Infections 5

Central Line Associated Bloodstream Infection (ICU + select Wards)

0 observed cases · 1.692 predicted · 2,535 patient days

0.000 No different than national

Catheter Associated Urinary Tract Infections (ICU + select Wards)

6 observed cases · 3.216 predicted · 4,616 patient days

1.866 No different than national

SSI - Colon Surgery

2 observed cases · 3.584 predicted · 146 patient days

0.558 No different than national

MRSA Bacteremia

1 observed case · 1.428 predicted · 40,464 patient days

0.700 No different than national

Clostridium Difficile (C.Diff)

14 observed cases · 20.241 predicted · 37,498 patient days

0.692 No different than national

Unplanned Hospital Visits 13

Hospital return days for heart attack patients

187 days per 100 discharges

Hospital return days for heart failure patients

506 days per 100 discharges

Hospital return days for pneumonia patients

344 days per 100 discharges

Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)

2638 No different than national

Rate of inpatient admissions for patients receiving outpatient chemotherapy

26 No different than national

Rate of emergency department (ED) visits for patients receiving outpatient chemotherapy

26 No different than national

Timely & Effective Care 16

Emergency department volume

Medium

Percentage of healthcare personnel who are up to date with COVID-19 vaccinations

2.8%

Healthcare workers given influenza vaccination

95%

Average (median) time patients spent in the emergency department before leaving from the visit A lower number of minutes is better

142 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

359 minutes

Left before being seen

Maternal Health 2

Elective Delivery

23%

Maternal Morbidity Structural Measure

Yes

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.

DR. THOMAS M WERNIMONT MD

Emergency Medicine

1111 DUFF AVE
AMES, IA 50010

Story County (515) 239-2155

RYAN ELSEY DO

Hospitalist

1111 DUFF AVE
AMES, IA 50010

Story County (515) 239-6992

JEFFREY A. DRAWBOND MD

Anesthesiology

1111 DUFF AVE
AMES, IA 50010

Story County (515) 239-2182

DR. AUSTIN GRECO M.D.

Internal Medicine (Hematology & Oncology)

1111 DUFF AVE
AMES, IA 50010

Story County (515) 239-4401

JULIE TROUT

Nurse Practitioner (Psychiatric/Mental Health)

1111 DUFF AVE
AMES, IA 50010

Story County (515) 239-2011

MS. CHERI LYNN THIELEKE PA-C

Physician Assistant

1111 DUFF AVE
AMES, IA 50010

Story County (515) 239-2155

MS. SARAH LINNEA HAVEMAN RD, CDE

Dietitian, Registered

1111 DUFF AVE
AMES, IA 50010

Story County (515) 956-2882

TRAVIS L. MATTSON MD

Emergency Medicine

1111 DUFF AVE, MCFARLAND CLINIC PC
AMES, IA 50010

Story County (515) 239-2155

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 Mary Greeley Medical Center's NPI number?

The NPI number for Mary Greeley Medical Center is 1477539492. It was assigned to this organization in the NPPES registry on December 21, 2005.

Where is Mary Greeley Medical Center located?

Mary Greeley Medical Center is located at 1111 Duff Ave, Ames, IA 50010. The listed phone number is (515) 239-2011.

What is Mary Greeley Medical Center's specialty?

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

Is Mary Greeley Medical Center a Medicare-certified hospital?

Yes. Mary Greeley Medical Center is a Medicare-certified hospital (Acute Care Hospitals). The hospital provides emergency services.

What quality rating does Mary Greeley Medical Center have?

CMS rates Mary Greeley Medical Center 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 Mary Greeley Medical Center accept?

Health plans from Medica list Mary Greeley Medical Center 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 Mary Greeley Medical Center was last updated on November 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.