IndividualActive
Mary Niessen, LICSW
NPI 1356404958 · Social Worker · Sartell, MN
Mary Niessen, LICSW is a Social Worker provider in Sartell, MN (NPI 1356404958).
Provider details
- NPI number
- 1356404958
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- LICSW
- Sex
- Female
- Sole proprietor
- No
- License
- 10428 (MN)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 index)
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
211 2nd Ave N
Sartell, MN 56377-1728
Phone: (320) 253-8940
Fax: (320) 253-1846
Street-level locationGet directions
Mailing address
Po Box 2390
Saint Cloud, MN 56302-2390
Registry dates
- Enumerated
- 2006-12-18
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mary Niessen's NPI number?
- Mary Niessen's National Provider Identifier (NPI) is 1356404958, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Niessen's specialty?
- Mary Niessen is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Mary Niessen located?
- Mary Niessen's practice location on file with NPPES is 211 2nd Ave N, Sartell, MN 56377-1728.
- What is Mary Niessen's phone number?
- The practice phone number listed in the NPPES registry for Mary Niessen is (320) 253-8940.
- Is Mary Niessen's NPI active?
- Yes — Mary Niessen's NPI (1356404958) 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.