RUTH E. MASH ARNP
NPI 1205290434
Nurse Practitioner in Carroll, IA
About Ruth E. Mash Arnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RUTH E. MASH ARNP (NPI 1205290434) is an individual nurse practitioner in Carroll, Iowa, licensed in Iowa (A127940) and active in the NPI registry since April 2016. She is enrolled in Medicare PECOS, is affiliated with Greene County Medical Center, and is a graduate of Other (2015).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Ruth E. Mash Arnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Ruth Mash reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Ames, IA 50010
- Reassigned Medicare billing, Iowa enrollment
- 331 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 28
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Greene County Medical Center
Critical Access Hospitals · Jefferson, IAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 51401 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 18
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Ruth Mash's NPI number?
The NPI number for Ruth Mash is 1205290434. It was assigned to this individual provider in the NPPES registry on April 13, 2016.
Where is Ruth Mash located?
Ruth Mash practices at 1214 S Grant Rd, Carroll, IA 51401. The listed phone number is (712) 792-7500.
What is Ruth Mash's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Ruth Mash enrolled in Medicare?
Yes. Ruth Mash is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Ruth Mash's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ruth Mash reassigns Medicare benefits to Mcfarland Clinic PC (Ames, IA). The 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 Ruth Mash's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ruth Mash accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and Oscar Health and 2 other insurers list Ruth Mash 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.
Is Ruth Mash affiliated with any hospitals?
According to CMS data, Ruth Mash is affiliated with Greene County Medical Center.
When was this NPI record last updated?
The NPPES record for Ruth Mash was last updated on February 22, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.