MASON CITY MEDICAL ASSOCIATES
NPI 1932166931
Clinic/Center - Rural Health in Mason City, IL
About Mason City Medical Associates NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MASON CITY MEDICAL ASSOCIATES (NPI 1932166931) is a healthcare organization registered as a rural health in Mason City, Illinois and active in the NPI registry since April 2006. The organization holds a CLIA Waiver certificate valid through June 14, 2028 and lists Robert J Stolba, Cfo, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mason City Medical Associates is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
56Medicare enrollment records show 56 clinicians reassign Medicare billing to Mason City Medical Associates, which bills Medicare for the services they deliver. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 16
Nearest to this location (20)
See all 56Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 14D2042630
Mason City Medical Associates · Mason City, ILFrequently 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 Mason Hospital District's NPI number?
The NPI number for Mason Hospital District is 1932166931. It was assigned to this organization in the NPPES registry on April 26, 2006. The provider is doing business as Mason City Medical Associates.
Where is Mason Hospital District located?
Mason Hospital District is located at 122 E Elm St, Mason City, IL 62664. The listed phone number is (309) 543-8564.
What is Mason Hospital District's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Rural Health, with taxonomy code 261QR1300X.
Is Mason Hospital District enrolled in Medicare?
Yes. Mason Hospital District is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Mason Hospital District?
According to the CMS Revalidation Reassignment List (October 2026 release), 56 clinicians in 16 Medicare specialties reassign their Medicare billing to Mason Hospital District. 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 Emergency Medicine (11), Nurse Practitioner (10) and Family Practice (8). Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Mason Hospital District hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 14D2042630) is associated with this NPI, valid through June 14, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
When was this NPI record last updated?
The NPPES record for Mason Hospital District was last updated on December 10, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Mason City Medical Associates · NPI 1932166931
Rural Health organization in Mason City, Illinois. Organization record, active in the CMS NPPES registry since April 26, 2006.
## Identity
- **NPI:** 1932166931 (Entity type: Organization)
- **Enumerated:** April 26, 2006
- **Primary specialty:** Clinic/Center - Rural Health · taxonomy 261QR1300X
- **Legal business name:** Mason Hospital District
- **Organization subpart:** No
- **Authorized official:** Robert Stolba, CFO
## Practice location
- **Address:** 122 E ELM ST, Mason City, IL 62664-1410
- **Phone:** (309) 543-8564 · **Fax:** (309) 543-2089
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 56 clinicians in 16 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Emergency Medicine (11), Nurse Practitioner (10), Family Practice (8); [full list](https://npiprofile.com/npi/1932166931/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 10, 2010
- **Other identifiers:** Medicare OSCAR/certification 143462 (IL)
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1932166931) · Data from the CMS NPPES public registry.