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NORTH IOWA MERCY CLINICS
NPI 1972610376
Internal Medicine - Medical Oncology in Mason City, IA

Active since August 23, 2006
1000 4TH ST SW, MASON CITY, IA 50401(641) 428-6300(641) 428-6374 Get Directions Write a Review

NPPES record last updated: March 5, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Mar 5, 2026, Mar 15, 2021, Nov 30, 2020 and 2 more (5 updates tracked since 2017).

About North Iowa Mercy Clinics NPPES

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

NORTH IOWA MERCY CLINICS (NPI 1972610376), doing business as Mercyone North Iowa Cancer Center, is a healthcare organization registered as a medical oncology in Mason City, Iowa and active in the NPI registry since August 2006. The organization lists Mark C Trammel, Vp Fianance, as its authorized official.

NPPES Registry Identity

NPI1972610376
Entity TypeOrganization
Primary Taxonomy207RX0202X
Legal Business NameNORTH IOWA MERCY CLINICS
Location Address1000 4TH ST SWMason City, IA 50401-2800
Mailing Address1000 4th St SwMason City, IA 50401-2800
Phone(641) 428-6300
Fax(641) 428-6374
Organization SubpartNo
Authorized OfficialMark C TrammelVp Fianance · (641) 428-7984
Enumeration DateAugust 23, 2006
Last NPPES UpdateMarch 5, 20265 updates tracked since enumeration
NPPES CertifiedMarch 5, 2026
✔ NPI 1972610376 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
Definition
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.
1000 4TH ST SW, Mason City, IA 50401
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Other Names 1

Doing Business AsMercyone North Iowa Cancer Center

Other Identifiers 2

Medicaid0238360IA
Other13845IA · Wellmark

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and more.Insurance ›

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.

LINDA S VOLD LISW
Social Worker (Clinical)
1000 4TH ST SW, SUITE BS
MASON CITY, IA 50401
Cerro Gordo County (641) 422-7797
BURT HUMBURG MD
Internal Medicine
1000 4TH ST SW
MASON CITY, IA 50401
Cerro Gordo County (641) 428-7000
SUMATHY NAGRAJ IYENGAR M.D.,
Hospitalist
1000 4TH ST SW, MERCY MEDICAL CENTER-HOSPITALIST DEPT
MASON CITY, IA 50401
Cerro Gordo County (641) 428-7000
DR. SATINDERJIT SINGH M.D.
Emergency Medicine
1000 4TH ST SW
MASON CITY, IA 50401
Cerro Gordo County (641) 428-7234
ASHLEY MATERN ARNP
Nurse Practitioner (Family)
1000 4TH ST SW
MASON CITY, IA 50401
Cerro Gordo County (641) 428-6999
ROBERT D. FROEHNER CRNA
Nurse Anesthetist, Certified Registered
1000 4TH ST SW
MASON CITY, IA 50401
Cerro Gordo County (641) 422-7000
DR. THOMAS P DELANEY MD
Hospitalist
1000 4TH ST SW, SUITE HOSP
MASON CITY, IA 50401
Cerro Gordo County (641) 422-7000
NORTH IOWA MERCY CLINICS
Nurse Practitioner
1000 4TH ST SW
MASON CITY, IA 50401
Cerro Gordo County (641) 428-5932

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 North Iowa Mercy Clinics's NPI number?

The NPI number for North Iowa Mercy Clinics is 1972610376. It was assigned to this organization in the NPPES registry on August 23, 2006. The provider is doing business as MercyOne North Iowa Cancer Center.

Where is North Iowa Mercy Clinics located?

North Iowa Mercy Clinics is located at 1000 4th St SW, Mason City, IA 50401. The listed phone number is (641) 428-6300.

What is North Iowa Mercy Clinics's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

What insurance does North Iowa Mercy Clinics accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Home State Health, Ambetter from NH Healthy Families and Ambetter from Sunflower Health Plan and 1 other insurer list North Iowa Mercy Clinics 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 North Iowa Mercy Clinics was last updated on March 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.