IndividualActive
Mary Nielsen, MSSA, LISW
NPI 1366598542 · Social Worker · Dayton, OH
Mary Nielsen, MSSA, LISW is a Social Worker provider in Dayton, OH (NPI 1366598542).
Provider details
- NPI number
- 1366598542
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSSA, LISW
- Sex
- Female
- Sole proprietor
- Yes
- License
- I4458 (OH)
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
3095 Kettering Blvd
Dayton, OH 45439-1921
Phone: (937) 293-8300
Fax: (937) 534-1347
Street-level locationGet directions
Mailing address
9138 Payne Farm Ln
Dayton, OH 45458-9388
Registry dates
- Enumerated
- 2007-01-28
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mary Nielsen's NPI number?
- Mary Nielsen's National Provider Identifier (NPI) is 1366598542, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Nielsen's specialty?
- Mary Nielsen is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Mary Nielsen located?
- Mary Nielsen's practice location on file with NPPES is 3095 Kettering Blvd, Dayton, OH 45439-1921.
- What is Mary Nielsen's phone number?
- The practice phone number listed in the NPPES registry for Mary Nielsen is (937) 293-8300.
- Is Mary Nielsen's NPI active?
- Yes — Mary Nielsen's NPI (1366598542) 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.