Justin Mattson, RD/LD
NPI 1023987260 · Registered Dietitian · Colby, KS
Justin Mattson, RD/LD is a Registered Dietitian provider in Colby, KS (NPI 1023987260).
Provider details
- NPI number
- 1023987260
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RD/LD
- Sex
- Male
- Sole proprietor
- No
- License
- 5340 (AL)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Dietary & Nutritional Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
- 2025-11-04
- Last updated
- 2025-11-04
- Certified
- 2025-11-04
Frequently asked questions
- What is Justin Mattson's NPI number?
- Justin Mattson's National Provider Identifier (NPI) is 1023987260, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Justin Mattson's specialty?
- Justin Mattson is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Justin Mattson located?
- Justin Mattson's practice location on file with NPPES is 1442 County Road R, Colby, KS 67701-9512.
- What is Justin Mattson's phone number?
- The practice phone number listed in the NPPES registry for Justin Mattson is (818) 434-3331.
- Is Justin Mattson's NPI active?
- Yes — Justin Mattson's NPI (1023987260) is active in the NPPES registry as of the last update on 2025-11-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.