Melissa Nystuen, LCSW
NPI 1538504782 · Clinical Social Worker · Williston, ND
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Melissa Nystuen, LCSW is a Clinical Social Worker provider in Williston, ND (NPI 1538504782).
Provider details
- NPI number
- 1538504782
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- No
- License
- 4400 (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
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
Mailing address
Registry dates
- Enumerated
- 2013-05-01
- Last updated
- 2013-05-01
Frequently asked questions
- What is Melissa Nystuen's NPI number?
- Melissa Nystuen's National Provider Identifier (NPI) is 1538504782, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Melissa Nystuen's specialty?
- Melissa Nystuen is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Melissa Nystuen located?
- Melissa Nystuen's practice location on file with NPPES is 316 2nd Ave West, Williston, ND 58801.
- What is Melissa Nystuen's phone number?
- The practice phone number listed in the NPPES registry for Melissa Nystuen is (701) 774-4600.
- Does Melissa Nystuen accept Medicare?
- Melissa Nystuen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Melissa Nystuen's NPI active?
- Yes — Melissa Nystuen's NPI (1538504782) is active in the NPPES registry as of the last update on 2013-05-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.