What is L Arnold's NPI number?

L Arnold's National Provider Identifier (NPI) is 1922977594, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is L Arnold's specialty?

L Arnold is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).

Where is L Arnold located?

L Arnold's practice location on file with NPPES is 806 Commerce Dr, Decorah, IA 52101-2363.

What is L Arnold's phone number?

The practice phone number listed in the NPPES registry for L Arnold is (563) 387-8028.

Is L Arnold's NPI active?

Yes — L Arnold's NPI (1922977594) is active in the NPPES registry as of the last update on 2025-11-03.

IndividualActive

L Arnold, MSW

NPI 1922977594 · Social Worker · Decorah, IA

L Arnold, MSW is a Social Worker provider in Decorah, IA (NPI 1922977594).

Provider details

NPI number: 1922977594
Entity type: Individual
Primary specialty: Social WorkerBehavioral Health & Social Service Providers
Credential: MSW
Sex: Male
Sole proprietor: No
License: 133896 (IA)

Specialties & taxonomies

Social WorkerPrimary104100000XLicense 133896 (IA)
Behavioral Health & Social Service Providers

Profile Score

Established profile(54/100 index)

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

806 Commerce Dr

Decorah, IA 52101-2363

Phone: (563) 387-8028

Fax: (563) 334-8273

Street-level locationGet directions

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Mailing address