Brian Masonholder, D.O.
NPI 1851333942 · Family Medicine Physician · Columbus Junction, IA
Brian Masonholder, D.O. is a Family Medicine Physician provider in Columbus Junction, IA (NPI 1851333942).
Provider details
- NPI number
- 1851333942
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 01809 (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
20 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
- 2006-06-12
- Last updated
- 2017-02-28
Frequently asked questions
- What is Brian Masonholder's NPI number?
- Brian Masonholder's National Provider Identifier (NPI) is 1851333942, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Masonholder's specialty?
- Brian Masonholder is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Masonholder located?
- Brian Masonholder's practice location on file with NPPES is 109 E Walnut St, Columbus Junction, IA 52738-1014.
- What is Brian Masonholder's phone number?
- The practice phone number listed in the NPPES registry for Brian Masonholder is (319) 728-2429.
- Is Brian Masonholder's NPI active?
- Yes — Brian Masonholder's NPI (1851333942) is active in the NPPES registry as of the last update on 2017-02-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.