Amber Marzen, ARNP
Individual provider Active NPI Family Nurse Practitioner · Sheffield, IA
NPI 1902577331 · NPPES record last updated Jul 15, 2025
Key facts
- NPI
- 1902577331
- Entity type
- Individual (NPI type 1)
- Primary specialty
- Family Nurse Practitioner 363LF0000X
- License
- A165787 (IA)
- Practice address
- 203 S 2ND St
Sheffield, IA 50475-5008 - Phone
- (641) 892-4495
- Fax
- (641) 892-4278
- NPI assigned
- Sep 24, 2021
- Sex
- Female
- Sole proprietor
- Yes
Organizations & group practices 4
Hospital & facility affiliations 1
Medicare Care Compare profile
- Specialty
- Nurse Practitioner
- Education
- Other, 2021
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
- North Iowa Mercy Clinics
Practice addresses (Care Compare)
1000 4TH St SW
Mason City, IA 50401-2800
203 S 2ND St
Mercyone Sheffield Family Medicine
Sheffield, IA 50475-5008
Phone (641) 892-4495
Hospital & facility affiliations
- Mercyone North Iowa Medical Center
Merit-based Incentive Payment System (MIPS)
- Final score
- 81.55 of 100
- Quality
- 73.89
- Promoting interoperability
- 93
- Improvement activities
- 40
- Cost
- 70.44
Medicare participation
- Medicare fee-for-service enrollment
- Enrolled in IA
- Eligible to order & refer
- Part B services: Yes · DME: Yes · Home health: Yes · Power mobility devices: Yes · Hospice: No
Medicare enrollment records
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20211203001737 | IA | Practitioner - Nurse Practitioner | 9931599032 | Reassigns benefits to 1 organization |
National Provider Directory
- Medicare enrollment (NPD)
- Yes
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| North Iowa Mercy Clinics | Current |
Accepting new patients | |
| North Iowa Mercy Clinics | Current | Accepting new patients | |
| North Iowa Mercy Clinics | Current |
Accepting new patients | |
| Floyd County Memorial Hospital Commission | Past | Accepting new patients |
Locations
1000 4th St SW
Mason City, IA 50401
Phone (641) 424-6704
702 E Main Ave
Rockford, IA 50468
Phone (641) 756-3303
Interoperability endpoints
- amarzen3951318@direct.trinity-health.org
Specialties & licenses
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Family Nurse Practitioner | 363LF0000X | A165787 | IA | Yes |
Addresses
Primary practice location
203 S 2ND St
Sheffield, IA 50475-5008
Mailing address
203 S 2ND St
Sheffield, IA 50475-5008
Phone (641) 892-4495
Electronic endpoints
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | amarzen3951318@direct.trinity-health.org | Direct |
Other providers in Sheffield, IA
- Anna M. Clausen
- Innate, Inc.
- Mercy Health Services-Iowa Corp
- Joy Moretz
- Ruth Ann Nelson
- North Iowa Mercy Clinics
- Nancy K Plagge
All providers in Sheffield, IA · Family Nurse Practitioner in Iowa
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Record last updated by the provider on Jul 15, 2025. Information in NPPES is self-reported and not verified by CMS.
- NUCC Health Care Provider Taxonomy: specialty names.
- Medicare Fee-For-Service Public Provider Enrollment (CMS/PECOS): enrollments, PAC IDs and benefit reassignments.
- Order and Referring (CMS).
- Medicare Care Compare provider data (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.