Individual Healthcare Provider
Ruben Ngnitewe Massa A, MD
Provider's NPPES record last updated: June 22, 2026
Overview
- Entity Type
- Individual Healthcare Provider
- NPI
- 1003430950
- Primary Specialty
- Radiology — Diagnostic Radiology
- Practice Location
- Sun Prairie, Wisconsin
- Sole Proprietor
- No
Federal Screening
NPISignal checked this NPI against federal exclusion sources. Results below are based on the NPI number itself — an identifier match, not a name match.
List of Excluded Individuals/Entities (LEIE)
HHS Office of Inspector General
No potential match was identified in NPISignal's indexed List of Excluded Individuals/Entities (LEIE) records as of 2026-09-10.
- Source data
- September 10, 2026
- Records indexed
- 84,001
- Screened
- Sep 18, 2026, 3:53 AM UTC
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
SAM.gov Exclusions
U.S. General Services Administration
SAM.gov Exclusions was not checked.
SAM.gov screening is not configured on this deployment. No SAM check has been performed.
- Screened
- Not checked
This is an NPI-based check only. NPISignal does not publish name-based exclusion matches on a provider profile. A shared or similar name is a lead that requires human review, not an identification, and this page is not the place to make one. Run a name-based screening below to see potential matches with the reasons for each.
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
Searches OIG LEIE and SAM.gov by name and reviews every potential match.
Specialties & Taxonomies
- Primary
Radiology
Diagnostic Radiology
Allopathic & Osteopathic Physicians
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
Taxonomy code 2085R0202X
Provider-Reported License Information
- Radiology (Wisconsin)
- 8241820
- Radiology (Oklahoma)
- 46990
- Radiology (New Hampshire)
- 38889
- Radiology (Indiana)
- 01098657A
- Radiology (Georgia)
- 110894
- Radiology (Michigan)
- 4301515674
- Radiology (Oregon)
- MD228042
- Radiology (Maine)
- MD29939
- Radiology (Alabama)
- MD.52956
Practice Locations
Practice Location
1281 Twisted Branch Way
Sun Prairie, Wisconsin 53590-9012
Phone: (913) 980-3405
Additional Practice Location
1100 Reid Pkwy
Richmond, Indiana 47374-1157
Phone: (765) 983-3000
Additional Practice Location
489 State St
Bangor, Maine 04401-6616
Phone: (207) 973-7000
Additional Practice Location
22 Bramhall St
Portland, Maine 04102-3134
Phone: (207) 662-4735
Fax: (207) 482-7898
Record Information
- Enumeration Date
- June 5, 2020
- Provider's NPPES Record Last Updated
- June 22, 2026
- Certification Date
- June 22, 2026
- NPISignal NPPES Dataset
- August 2026
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