William Larsen, PH.D.
NPI 1083712301 · Clinical Psychologist · Grand Rapids, MN
William Larsen, PH.D. is a Clinical Psychologist provider in Grand Rapids, MN (NPI 1083712301).
Provider details
- NPI number
- 1083712301
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- LP0562 (MN)
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
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
- 2006-09-20
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Larsen's NPI number?
- William Larsen's National Provider Identifier (NPI) is 1083712301, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Larsen's specialty?
- William Larsen is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is William Larsen located?
- William Larsen's practice location on file with NPPES is 525 Itasca St, Grand Rapids, MN 55744-2965.
- What is William Larsen's phone number?
- The practice phone number listed in the NPPES registry for William Larsen is (218) 327-2295.
- Is William Larsen's NPI active?
- Yes — William Larsen's NPI (1083712301) 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.