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MARY GREELEY MEDICAL CENTER
NPI 1275203846
Clinic/Center - Adult Mental Health in Ames, IA

Active since September 15, 2021
1111 DUFF AVE STE 1431, AMES, IA 50010(515) 239-2011(515) 239-2060 Get Directions Write a Review

NPPES record last updated: December 15, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 15, 2025, Nov 21, 2025, Sep 15, 2021 (3 updates tracked since 2021).

About Mary Greeley Medical Center NPPES

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

MARY GREELEY MEDICAL CENTER (NPI 1275203846) is a healthcare organization registered as an adult mental health in Ames, Iowa and active in the NPI registry since September 2021. The organization lists Amber Deardorff, President/ceo, as its authorized official.

NPPES Registry Identity

NPI1275203846
Entity TypeOrganization
Primary Taxonomy261QM0850X
Legal Business NameMARY GREELEY MEDICAL CENTER
Location Address1111 DUFF AVE STE 1431Ames, 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 SubpartYes
Authorized OfficialAmber DeardorffPresident/ceo · (515) 239-2105
Enumeration DateSeptember 15, 2021
Last NPPES UpdateDecember 15, 20253 updates tracked since enumeration
NPPES CertifiedDecember 15, 2025
✔ NPI 1275203846 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Adult Mental HealthAmbulatory Health Care Facilities
Taxonomy Code261QM0850X
Definition
An entity, facility, or distinct part of a facility providing diagnostic, treatment, and prescriptive services related to mental and behavioral disorders in adults.
1111 DUFF AVE STE 1431, Ames, IA 50010
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mary Greeley Medical Center is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

42

Medicare enrollment records show 42 clinicians reassign Medicare billing to Mary Greeley Medical Center, which bills Medicare for the services they deliver. Of these, 16 practice at this address and 19 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 11

Nurse Practitioner12
Neurology11
Psychiatry6
Cardiovascular Disease (Cardiology)3
Obstetrics/Gynecology3
Nephrology2
Clinical Social Worker1
Interventional Cardiology1
3 other specialties3

Nearest to this location (20)

See all 42
Kimberly Case, M.S. C.N.P.
Nurse Practitioner
NPI 1255317160
1111 DUFF AVE
Ames, IA 50010
(515) 956-2880
✔ PECOS✔ Accepts MedicareSame address
Jessica Ellensohn, ARNP
Nurse Practitioner
NPI 1437721446
1111 DUFF AVE
Ames, IA 50010
(515) 239-4401
✔ PECOS✔ Accepts MedicareSame address
Stuart Christenson, MD
Cardiovascular Disease (Cardiology)
NPI 1336112499
1111 DUFF AVE
Ames, IA 50010
(515) 239-4472
✔ PECOS✔ Accepts MedicareSame address
Ryan Ellis, TLMHC
Mental Health Counselor
NPI 1861104267
1111 DUFF AVE
Ames, IA 50010
(515) 233-7560
✔ PECOS✔ Accepts MedicareSame address
Shannon Lindley, PMHNP-BC
Nurse Practitioner
NPI 1720509342
1111 DUFF AVE
Ames, IA 50010
(515) 239-2011
✔ PECOS✔ Accepts MedicareSame address
Alicia Murphy, ARNP
Nurse Practitioner
NPI 1578321238
1111 DUFF AVE
Ames, IA 50010
(515) 239-2011
✔ PECOS✔ Accepts MedicareSame address
Jason Rasmussen, MD
Cardiovascular Disease (Cardiology)
NPI 1326279290
1111 DUFF AVENUE
Ames, IA 50010
(515) 239-4472
✔ PECOS✔ Accepts MedicareSame address
Anna Statz, D.O.
Osteopathic Manipulative Medicine
NPI 1235662982
1111 DUFF AVE.
Ames, IA 50010
(515) 239-2011
✔ PECOS✔ Accepts MedicareSame address
Kasey Strosahl, D.O.
Psychiatry
NPI 1568698769
1111 DUFF AVE BEHAVIORAL HEALTH
Ames, IA 50010
(515) 239-2682
✔ PECOS✔ Accepts MedicareSame address
Amanda Van Wyk, AGNP-C
Nurse Practitioner
NPI 1700423894
1111 DUFF AVE
Ames, IA 50010
(515) 239-4472
✔ PECOS✔ Accepts MedicareSame address
Snehitha Vijaykumar, M.D.
Interventional Cardiology
NPI 1376960526
1111 DUFF AVE
Ames, IA 50010
(515) 239-4472
✔ PECOS✔ Accepts MedicareSame address
Esteffania Villegas-Santamaria, MD
Cardiovascular Disease (Cardiology)
NPI 1457804395
1111 DUFF AVE
Ames, IA 50010
(515) 239-4472
✔ PECOS✔ Accepts MedicareSame address
Alexandria Carroll, MD
Obstetrics/Gynecology
NPI 1891351631
1015 DUFF AVE STE 100
Ames, IA 50010
(515) 239-6970
✔ PECOS✔ Accepts MedicareSame address
Ann Gessner, DO
Obstetrics/Gynecology
NPI 1598768269
1015 DUFF AVE STE 100
Ames, IA 50010
(515) 239-6970
✔ PECOS✔ Accepts MedicareSame address
Emily Jordison, ARNP
Nurse Practitioner
NPI 1780965400
1015 DUFF AVE
Ames, IA 50010
(515) 239-6970
✔ PECOS✔ Accepts MedicareSame address
Joyce Lines, MD
Obstetrics/Gynecology
NPI 1649270588
1015 DUFF AVE
Ames, IA 50010
(515) 239-6970
✔ PECOS✔ Accepts MedicareSame address
Courtney Martin, DNP
Nurse Practitioner
NPI 1285459115
133 E ONEIL DR
Ames, IA 50010
(515) 451-1905
✔ PECOS✔ Accepts Medicare0.6 mi
Courtney Makus, AG-ACNP
Nurse Practitioner
NPI 1720681554
1111 DUFF AVCENUE
Ames, IA 50010
(515) 239-4472
✔ PECOS✔ Accepts Medicare1.3 mi
David Cain, DPM
Podiatry
NPI 1790221174
2222 PHILADELPHIA ST
Ames, IA 50010
(515) 663-0900
✔ PECOS✔ Accepts Medicare1.5 mi
Sarah Clark, ARNP, PMHNP-BC
Nurse Practitioner
NPI 1598521098
800 E 1ST ST STE 1700
Ankeny, IA 50021
(515) 643-8350
✔ PECOS✔ Accepts Medicare21 mi
See all 42 clinicians

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

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 1275203846. It was assigned to this organization in the NPPES registry on September 15, 2021.

Where is Mary Greeley Medical Center located?

Mary Greeley Medical Center is located at 1111 Duff Ave Ste 1431, 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 Clinic/Center, specializing in Adult Mental Health, with taxonomy code 261QM0850X.

Is Mary Greeley Medical Center enrolled in Medicare?

Yes. Mary Greeley Medical Center is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Mary Greeley Medical Center?

According to the CMS Revalidation Reassignment List (October 2026 release), 42 clinicians in 11 Medicare specialties reassign their Medicare billing to Mary Greeley Medical Center. 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 (12), Neurology (11) and Psychiatry (6). Of these, 16 practice at this address and 19 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Mary Greeley Medical Center was last updated on December 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.