IndividualActive
Elizabeth Derr, LISW
NPI 1831852052 · Clinical Social Worker · Waterloo, IA
Provider details
- NPI number
- 1831852052
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LISW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 007091 (IA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(61/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 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
945 Tower Park Dr
Waterloo, IA 50701-9098
Phone: (319) 235-1230
Fax: (319) 235-1229
Street-level locationGet directions
Mailing address
711 8th Ave Se
Independence, IA 50644-3044
Registry dates
- Enumerated
- 2021-10-14
- Last updated
- 2021-10-14
- Certified
- 2021-10-14
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.