Roger Larson, PSYD
NPI 1841231065 · Psychologist · Bismarck, ND
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Roger Larson, PSYD is a Psychologist provider in Bismarck, ND (NPI 1841231065).
Provider details
- NPI number
- 1841231065
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PSYD
- Sex
- Male
- Sole proprietor
- No
- License
- 219 (ND)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
- 2006-06-09
- Last updated
- 2007-07-08
Frequently asked questions
- What is Roger Larson's NPI number?
- Roger Larson's National Provider Identifier (NPI) is 1841231065, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Roger Larson's specialty?
- Roger Larson is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Roger Larson located?
- Roger Larson's practice location on file with NPPES is 1237 W Divide Ave, Bismarck, ND 58501-1208.
- What is Roger Larson's phone number?
- The practice phone number listed in the NPPES registry for Roger Larson is (701) 328-8883.
- Does Roger Larson accept Medicare?
- Roger Larson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Roger Larson's NPI active?
- Yes — Roger Larson's NPI (1841231065) 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.