Ruben Ngnitewe Massa A, MD
Diagnostic Radiology Physician · Sun Prairie, WI
Ruben Ngnitewe Massa A, MD is a diagnostic radiology physician with a practice address in Sun Prairie, Wisconsin, and NPI 1003430950, issued on Jun 5, 2020. Check the license (Wisconsin 8241820, as entered in NPPES) on the Wisconsin Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Ruben Ngnitewe Massa A
- Credential
- MD
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License numbers
- 8241820 WI
MD.52956 AL
110894 GA
01098657A IN
MD29939 ME
and 4 more
Self-reported in NPPES; status is on the state search - Practice location
- 1281 Twisted Branch Way, Sun Prairie, WI 53590
- Phone
- (913) 980-3405
- Enumerated
- Jun 5, 2020
- Record last updated
- Jun 22, 2026
- Medicare enrollment
- Enrolled (PECOS I20260529004249); may accept Medicare assignment
- Medical or professional school
- University Of Missouri, Columbia School Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 1,005 in Wisconsin → Look up another NPI →
Also registered at 1281 Twisted Branch Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephanie Schumaker-Karstetter, APSWSocial Worker1245979004
Verify Ruben Ngnitewe Massa A in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 8241820Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Ruben Ngnitewe Massa A among 1,005 diagnostic radiology physician records in Wisconsin
Ruben Ngnitewe Massa A, MD is one of 1,005 diagnostic radiology physician records with a practice address in Wisconsin. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2020, is newer than 91% of them.
- NPI issued2020 · 91% of these records are older, 5% newer
- In a Medicare fileNo · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2020 · median 2006 among the 664 with a school on file
- Record last updated2026 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Radiology Physician providers in Wisconsin
There are 1,005 diagnostic radiology physician records in Wisconsin. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,005 in Wisconsin → Every provider in Sun Prairie → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Matthew Pipho, M.D.Verona, WI 535931285054064
- Steven Rawlins, M.D.Waunakee, WI 535971366676025
- Philip Carlson, MDWindsor, WI 535981750359832
- John Wentz, MDRichland Center, WI 535811902866445
- Carolyn Haerr, MDFitchburg, WI 535751033188032
- Jacob Schroeder, MDMonroe, WI 535661477181915
- Jacob McCallum, DOMiddleton, WI 535621194210492
- Cristopher Meyer, MDMiddleton, WI 535621366497406
Common questions
What is Ruben Ngnitewe Massa A, MD's NPI number?
Ruben Ngnitewe Massa A, MD's National Provider Identifier (NPI) is 1003430950, issued on Jun 5, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Ruben Ngnitewe Massa A, MD located?
The NPPES record lists a practice address at 1281 Twisted Branch Way, Sun Prairie, WI, 53590. Phone: (913) 980-3405. Providers update this record themselves, so call before visiting.
How can I verify Ruben Ngnitewe Massa A, MD's license?
NPPES lists Wisconsin license number 8241820, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.