Ruben Ngnitewe Massa a, MD
NPI 1003430950 · Diagnostic Radiology Physician · Sun Prairie, WI
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Provider details
- NPI number
- 1003430950
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2020014721 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
4 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (3)
- 1100 Reid PkwyRichmond, IN 47374-1157Phone: (765) 983-3000
- 489 State StBangor, ME 04401-6616Phone: (207) 973-7000
- 22 Bramhall StPortland, ME 04102-3134Phone: (207) 662-4735Fax: (207) 482-7898
Registry dates
- Enumerated
- 2020-06-05
- Last updated
- 2026-05-20
- Certified
- 2026-05-20
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.