IndividualActive
Janet Lassen, LCSW
NPI 1811230998 · Clinical Social Worker · Mobridge, SD
Janet Lassen, LCSW is a Clinical Social Worker provider in Mobridge, SD (NPI 1811230998).
Provider details
- NPI number
- 1811230998
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- LCSW-830 (WY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(78/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 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
12451 Hwy 1806 N
Mobridge, SD 57601-5760
Phone: (605) 845-7181
Fax: (605) 845-5072
Approximate (ZIP-level) locationGet directions
Mailing address
151 W Brundage St
Sheridan, WY 82801-4217
Registry dates
- Enumerated
- 2013-03-27
- Last updated
- 2021-06-02
- Certified
- 2021-03-31
Frequently asked questions
- What is Janet Lassen's NPI number?
- Janet Lassen's National Provider Identifier (NPI) is 1811230998, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Janet Lassen's specialty?
- Janet Lassen is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Janet Lassen located?
- Janet Lassen's practice location on file with NPPES is 12451 Hwy 1806 N, Mobridge, SD 57601-5760.
- What is Janet Lassen's phone number?
- The practice phone number listed in the NPPES registry for Janet Lassen is (605) 845-7181.
- Is Janet Lassen's NPI active?
- Yes — Janet Lassen's NPI (1811230998) is active in the NPPES registry as of the last update on 2021-06-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.