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NORTH IOWA MERCY CLINICS
NPI 1922274653
Internal Medicine - Endocrinology, Diabetes & Metabolism in Mason City, IA

Active since May 02, 2008
910 N EISENHOWER AVE, STE MDC, MASON CITY, IA 50401(641) 428-7799(641) 428-5274 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, Nov 30, 2020, Feb 18, 2020 and 1 more (4 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 1922274653), doing business as Mercyone Diabetes Care, is a healthcare organization registered as an endocrinology, diabetes & metabolism in Mason City, Iowa and active in the NPI registry since May 2008. The organization lists Mark C Trammel, Vp Finance, as its authorized official.

NPPES Registry Identity

NPI1922274653
Entity TypeOrganization
Primary Taxonomy207RE0101X
Legal Business NameNORTH IOWA MERCY CLINICS
Location Address910 N EISENHOWER AVE, STE MDCMason City, IA 50401-1525
Mailing Address1000 4th St SwMason City, IA 50401-2800
Phone(641) 428-7799
Fax(641) 428-5274
Organization SubpartNo
Authorized OfficialMark C TrammelVp Finance · (641) 428-7984
Enumeration DateMay 2, 2008
Last NPPES UpdateMarch 5, 20264 updates tracked since enumeration
NPPES CertifiedMarch 5, 2026
✔ NPI 1922274653 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
910 N EISENHOWER AVE, Mason City, IA 50401
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Other Names 1

Doing Business AsMercyone Diabetes Care

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 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.

NORTH IOWA MERCY CLINICS
Internal Medicine (Nephrology)
910 N EISENHOWER AVE
MASON CITY, IA 50401
Cerro Gordo County (641) 428-7799
MARK C JOHNSON MD
Internal Medicine
910 N EISENHOWER AVE
MASON CITY, IA 50401
Cerro Gordo County (641) 428-7799
MICHAEL TINGUELY
Physician Assistant (Surgical)
910 N EISENHOWER AVE
MASON CITY, IA 50401
Cerro Gordo County (641) 428-7000
LEMAN OLSON RPH
Pharmacist
910 N EISENHOWER AVE
MASON CITY, IA 50401
Cerro Gordo County (641) 422-7917
JOHN C JUSTIN MD
Pediatrics
910 N EISENHOWER AVE
MASON CITY, IA 50401
Cerro Gordo County (641) 422-7388
JENNA PAULUS
Physician Assistant
910 N EISENHOWER AVE
MASON CITY, IA 50401
Cerro Gordo County (641) 428-2400
KATIE SHANNON DNP
Nurse Practitioner (Adult Health)
910 N EISENHOWER AVE
MASON CITY, IA 50401
Cerro Gordo County (641) 428-6999
MERCY HEALTH SERVICES- IOWA CORP
Home Health
910 N EISENHOWER AVE
MASON CITY, IA 50401
Cerro Gordo County (641) 428-6444

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 1922274653. It was assigned to this organization in the NPPES registry on May 2, 2008. The provider is doing business as MercyOne Diabetes Care.

Where is North Iowa Mercy Clinics located?

North Iowa Mercy Clinics is located at 910 N Eisenhower Ave Ste Mdc, Mason City, IA 50401. The listed phone number is (641) 428-7799.

What is North Iowa Mercy Clinics's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

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.