RUBEN NGNITEWE MASSA A MD
NPI 1003430950
Radiology - Diagnostic Radiology in Sun Prairie, WI
About Ruben Ngnitewe Massa A Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RUBEN NGNITEWE MASSA A MD (NPI 1003430950) is an individual diagnostic radiology provider in Sun Prairie, Wisconsin, licensed in Wisconsin (8241820) and active in the NPI registry since June 2020. He is enrolled in Medicare PECOS, is affiliated with Major Hospital, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
Other Identifiers 1
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
Ruben Ngnitewe Massa A Md 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 Reassignments
11Medicare enrollment records show Ruben Ngnitewe Massa A reassigns Medicare billing to 11 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fort Wayne, IN 46804
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Summit Radiology PC
Danville, IN 46122
- Reassigned Medicare billing, Wisconsin enrollment
Linton, IN 47441
- Reassigned Medicare billing, Wisconsin enrollment
Shelbyville, IN 46176
- Reassigned Medicare billing, Wisconsin enrollment
Richmond, IN 47374
- Reassigned Medicare billing, Indiana enrollment
- 527 clinicians in this Medicare group
Tulsa, OK 74135
- Reassigned Medicare billing, Wisconsin enrollment
Rome, GA 30165
- Reassigned Medicare billing, Wisconsin enrollment
Dallas, TX 75244
- Reassigned Medicare billing, Wisconsin enrollment
- 303 clinicians in this Medicare group
Portland, ME 04102
- Reassigned Medicare billing, Wisconsin enrollment
Portland, OR 97227
- Reassigned Medicare billing, Wisconsin enrollment
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Major Hospital
Acute Care Hospitals · Shelbyville, INPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53590 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SUN PRAIRIE, WI 53590
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 Ruben Ngnitewe Massa A's NPI number?
The NPI number for Ruben Ngnitewe Massa A is 1003430950. It was assigned to this individual provider in the NPPES registry on June 5, 2020.
Where is Ruben Ngnitewe Massa A located?
Ruben Ngnitewe Massa A practices at 1281 Twisted Branch Way, Sun Prairie, WI 53590. The listed phone number is (913) 980-3405.
What is Ruben Ngnitewe Massa A's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Ruben Ngnitewe Massa A enrolled in Medicare?
Yes. Ruben Ngnitewe Massa A 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 organizations bill Medicare for Ruben Ngnitewe Massa A's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ruben Ngnitewe Massa A reassigns Medicare benefits to 11 organizations: Summit Radiology P C (Fort Wayne, IN), Hendricks County Radiology Inc (Danville, IN), Greene County General Hospital (Linton, IN), X-Ray Physicians Of Shelbyville PC (Shelbyville, IN), Reid Physician Associates, Inc. (Richmond, IN) and 6 more organizations, listed in the Medicare section above. Each 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 Ruben Ngnitewe Massa A's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ruben Ngnitewe Massa A accept?
Health plans from Blue Cross and Blue Shield of Oklahoma and CareSource list Ruben Ngnitewe Massa A 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 Ruben Ngnitewe Massa A affiliated with any hospitals?
According to CMS data, Ruben Ngnitewe Massa A is affiliated with Major Hospital.
When was this NPI record last updated?
The NPPES record for Ruben Ngnitewe Massa A was last updated on June 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Ruben Ngnitewe Massa A, MD · NPI 1003430950
Diagnostic Radiology physician in Sun Prairie, Wisconsin. Individual provider, active in the CMS NPPES registry since June 5, 2020.
## Identity
- **NPI:** 1003430950 (Entity type: Individual)
- **Enumerated:** June 5, 2020
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** 8241820 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 1281 TWISTED BRANCH WAY, Sun Prairie, WI 53590-9012
- **Phone:** (913) 980-3405
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 11 organizations under Medicare reassignment (form CMS-855R): Summit Radiology P C (NPI 1073584587, Fort Wayne, IN); Hendricks County Radiology Inc (NPI 1588703946, Danville, IN); Greene County General Hospital (NPI 1942703004, Linton, IN); X-Ray Physicians Of Shelbyville PC (NPI 1144351347, Shelbyville, IN); Reid Physician Associates, Inc. (NPI 1265689111, Richmond, IN); and 6 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Missouri, Columbia School Of Medicine, class of 2020
## Record status
- **NPPES last updated:** June 22, 2026
- **Other identifiers:** Other 2020014721 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1003430950) · Data from the CMS NPPES public registry.