Masanari Onizuka, M.B.
NPI 1831307941 · Diagnostic Radiology Physician · Iowa City, IA
Masanari Onizuka, M.B. is a Diagnostic Radiology Physician provider in Iowa City, IA (NPI 1831307941).
Provider details
- NPI number
- 1831307941
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.B.
- Sex
- Male
- Sole proprietor
- No
- License
- R-7974 (IA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2007-05-21
- Last updated
- 2007-07-08
Frequently asked questions
- What is Masanari Onizuka's NPI number?
- Masanari Onizuka's National Provider Identifier (NPI) is 1831307941, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Masanari Onizuka's specialty?
- Masanari Onizuka is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Masanari Onizuka located?
- Masanari Onizuka's practice location on file with NPPES is 200 Hawkins Dr, Iowa City, IA 52242-1009.
- What is Masanari Onizuka's phone number?
- The practice phone number listed in the NPPES registry for Masanari Onizuka is (319) 356-1616.
- Is Masanari Onizuka's NPI active?
- Yes — Masanari Onizuka's NPI (1831307941) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.