NORTH IOWA MERCY CLINICS
NPI 1336398825
Surgery in Mason City, IA

Active since September 09, 2008
910 N EISENHOWER AVE, MASON CITY, IA 50401(641) 428-6155(641) 428-6156 Get Directions Write a Review

NPPES record last updated: March 5, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 5, 2026, Nov 30, 2020, Feb 19, 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 1336398825), doing business as Mercy Bariatrics Center, is a healthcare organization registered as a surgery in Mason City, Iowa and active in the NPI registry since September 2008. The organization lists Mark C Trammel, Vp Finance, as its authorized official.

NPPES Registry Identity

NPI1336398825
Entity TypeOrganization
Primary Taxonomy208600000X
Legal Business NameNORTH IOWA MERCY CLINICS
Location Address910 N EISENHOWER AVEMason City, IA 50401-1525
Mailing Address1000 4th St SwMason City, IA 50401-2800
Fax(641) 428-6156
Organization SubpartNo
Authorized OfficialMark C TrammelVp Finance · (641) 428-7984
Enumeration DateSeptember 9, 2008
Last NPPES UpdateMarch 5, 20264 updates tracked since enumeration
NPPES CertifiedMarch 5, 2026
✔ NPI 1336398825 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
910 N EISENHOWER AVE, Mason City, IA 50401

Other Names 2

Doing Business AsMercy Bariatrics Center
Doing Business AsMercyone Weight Loss Center

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

North Iowa Mercy Clinics is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

419

Medicare enrollment records show 419 clinicians reassign Medicare billing to North Iowa Mercy Clinics, which bills Medicare for the services they deliver. Of these, 14 practice at this address and 206 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 49

Nurse Practitioner73
Certified Registered Nurse Anesthetist (CRNA)55
Family Practice44
Internal Medicine26
Cardiovascular Disease (Cardiology)23
Emergency Medicine20
Anesthesiology17
Obstetrics/Gynecology17
41 other specialties144

Nearest to this location (20)

See all 419
Nurse Practitioner
NPI 1821694258
910 N EISENHOWER AVE
Mason City, IA 50401
(641) 428-5911
✔ PECOS✔ Accepts MedicareSame address
Pediatric Medicine
NPI 1578559761
910 N EISENHOWER AVE MERCY PEDIATRIC & ADOLESCENT CLINIC
Mason City, IA 50401
(641) 428-5437
✔ PECOSSame address
Pediatric Medicine
NPI 1396314167
910 N EISENHOWER AVE
Mason City, IA 50401
(641) 428-5437
✔ PECOSSame address
Pediatric Medicine
NPI 1699126771
910 N EISENHOWER
Mason City, IA 50401
(641) 428-5437
✔ PECOSSame address
Pediatric Medicine
NPI 1609454743
910 N EISENHOWER AVE
Mason City, IA 50401
(641) 428-5437
✔ PECOSSame address
Endocrinology
NPI 1013923127
910 N EISENHOWER AVE
Mason City, IA 50401
(641) 428-7799
✔ PECOS✔ Accepts MedicareSame address
Endocrinology
NPI 1427214170
910 N EISENHOWER AVE
Mason City, IA 50401
(641) 428-7799
✔ PECOS✔ Accepts MedicareSame address
Physical Medicine and Rehabilitation
NPI 1417065608
910 N EISENHOWER AVE
Mason City, IA 50401
(641) 428-5911
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1568014835
910 N EISENHOWER AVE
Mason City, IA 50401
(641) 428-7799
✔ PECOS✔ Accepts MedicareSame address
Family Practice
NPI 1578792289
910 N EISENHOWER AVE
Mason City, IA 50401
(641) 428-7799
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1467601062
910 N EISENHOWER AVE
Mason City, IA 50401
(641) 428-7799
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1144829300
910 N EISENHOWER AVE
Mason City, IA 50401
(641) 428-6999
✔ PECOS✔ Accepts MedicareSame address
Family Practice
NPI 1942311584
910 N EISENHOWER AVE
Mason City, IA 50401
(641) 428-5911
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1922292366
910 N EISENHOWER AVE
Mason City, IA 50401
(641) 428-7799
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1518445956
910 N EISENHOWER AVE
Mason City, IA 50401
(641) 428-2400
✔ PECOS✔ Accepts Medicare0.2 mi
Pediatric Medicine
NPI 1821196684
910 N EISENHOWER SUITE PEDS
Mason City, IA 50401
(641) 422-5437
✔ PECOS1.0 mi
Pediatric Medicine
NPI 1841398609
910 N EISENHOWER SUITE PEDS
Mason City, IA 50401
(641) 422-5437
✔ PECOS1.0 mi
Nurse Practitioner
NPI 1326417577
2800 4TH ST SW STE 8
Mason City, IA 50401
(641) 424-0000
✔ PECOS✔ Accepts Medicare1.4 mi
Certified Registered Nurse Anesthetist (CRNA)
NPI 1043550817
2235 AUGUSTA DR
Mason City, IA 50401
(642) 425-0714
✔ PECOS✔ Accepts Medicare2.1 mi
Internal Medicine
NPI 1992809636
1631 4TH ST SW
Mason City, IA 50401
(641) 422-6000
✔ PECOS✔ Accepts Medicare2.2 mi
See all 419 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 North Iowa Mercy Clinics's NPI number?

The NPI number for North Iowa Mercy Clinics is 1336398825. It was assigned to this organization in the NPPES registry on September 9, 2008. The provider is doing business as Mercy Bariatrics Center and MercyOne Weight Loss Center.

Where is North Iowa Mercy Clinics located?

North Iowa Mercy Clinics is located at 910 N Eisenhower Ave, Mason City, IA 50401. The listed phone number is (641) 428-6155.

What is North Iowa Mercy Clinics's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is North Iowa Mercy Clinics enrolled in Medicare?

Yes. North Iowa Mercy Clinics is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through North Iowa Mercy Clinics?

According to the CMS Revalidation Reassignment List (October 2026 release), 419 clinicians in 49 Medicare specialties reassign their Medicare billing to North Iowa Mercy Clinics. 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 (73), Certified Registered Nurse Anesthetist (CRNA) (55) and Family Practice (44). Of these, 14 practice at this address and 206 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 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 7 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.