WINNMED OSSIAN CLINIC
NPI 1669893988
Clinic/Center - Primary Care in Ossian, IA
About Winnmed Ossian Clinic NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WINNMED OSSIAN CLINIC (NPI 1669893988) is a healthcare organization registered as a primary care in Ossian, Iowa and active in the NPI registry since January 2014. The organization lists Steven Robert Slessor, Cao, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Winnmed Ossian Clinic is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
170Medicare enrollment records show 170 clinicians reassign Medicare billing to Winnmed Ossian Clinic, which bills Medicare for the services they deliver. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 34
Nearest to this location (20)
See all 170Source: 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 Winneshiek Medical Center's NPI number?
The NPI number for Winneshiek Medical Center is 1669893988. It was assigned to this organization in the NPPES registry on January 6, 2014. The provider is doing business as Winnmed Ossian Clinic.
Where is Winneshiek Medical Center located?
Winneshiek Medical Center is located at 112 East Main St., Ossian, IA 52101. The listed phone number is (563) 532-9500.
What is Winneshiek Medical Center's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Primary Care, with taxonomy code 261QP2300X.
Is Winneshiek Medical Center enrolled in Medicare?
Yes. Winneshiek Medical Center is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Winneshiek Medical Center?
According to the CMS Revalidation Reassignment List (October 2026 release), 170 clinicians in 34 Medicare specialties reassign their Medicare billing to Winneshiek 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 Cardiovascular Disease (Cardiology) (34), Family Practice (20) and Nurse Practitioner (17). Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Winneshiek Medical Center was last updated on June 29, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.
# Winnmed Ossian Clinic · NPI 1669893988
Primary Care organization in Ossian, Iowa. Organization record, active in the CMS NPPES registry since January 6, 2014.
## Identity
- **NPI:** 1669893988 (Entity type: Organization)
- **Enumerated:** January 6, 2014
- **Primary specialty:** Clinic/Center - Primary Care · taxonomy 261QP2300X
- **Legal business name:** Winneshiek Medical Center
- **Organization subpart:** Yes (part of Winneshiek Medical Center)
- **Authorized official:** Steven Slessor, CAO
## Practice location
- **Address:** 112 EAST MAIN ST., Ossian, IA 52101
- **Phone:** (563) 532-9500 · **Fax:** (563) 532-9599
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 170 clinicians in 34 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Cardiovascular Disease (Cardiology) (34), Family Practice (20), Nurse Practitioner (17); [full list](https://npiprofile.com/npi/1669893988/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 29, 2023
- **Other identifiers:** Medicaid 0214491 (IA); Medicaid 2214491 (IA); Medicaid 1214491 (IA)
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Source: [NPI Profile](https://npiprofile.com/npi/1669893988) · Data from the CMS NPPES public registry.