Justin Nielsen, MA, LPC, ACT
NPI 1184193740 · Mental Health Counselor · Sioux Falls, SD
Justin Nielsen, MA, LPC, ACT is a Mental Health Counselor provider in Sioux Falls, SD (NPI 1184193740).
Provider details
- NPI number
- 1184193740
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- MA, LPC, ACT
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
7 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2018-11-13
- Last updated
- 2018-11-19
Frequently asked questions
- What is Justin Nielsen's NPI number?
- Justin Nielsen's National Provider Identifier (NPI) is 1184193740, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Justin Nielsen's specialty?
- Justin Nielsen is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Justin Nielsen located?
- Justin Nielsen's practice location on file with NPPES is 310 S 1st Ave, Sioux Falls, SD 57104-6329.
- What is Justin Nielsen's phone number?
- The practice phone number listed in the NPPES registry for Justin Nielsen is (605) 336-2556.
- Is Justin Nielsen's NPI active?
- Yes — Justin Nielsen's NPI (1184193740) is active in the NPPES registry as of the last update on 2018-11-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.