Maggie Greving, LISW
NPI 1043581135 · Clinical Social Worker · Spencer, IA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maggie Greving, LISW is a Clinical Social Worker provider in Spencer, IA (NPI 1043581135).
Provider details
- NPI number
- 1043581135
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LISW
- Sex
- Female
- Sole proprietor
- No
- License
- 007908 (IA)
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
14 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
- 2012-01-20
- Last updated
- 2016-02-01
Frequently asked questions
- What is Maggie Greving's NPI number?
- Maggie Greving's National Provider Identifier (NPI) is 1043581135, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maggie Greving's specialty?
- Maggie Greving is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Maggie Greving located?
- Maggie Greving's practice location on file with NPPES is 201 E 11th St, Spencer, IA 51301-4436.
- What is Maggie Greving's phone number?
- The practice phone number listed in the NPPES registry for Maggie Greving is (712) 262-2922.
- Does Maggie Greving accept Medicare?
- Maggie Greving is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maggie Greving's NPI active?
- Yes — Maggie Greving's NPI (1043581135) is active in the NPPES registry as of the last update on 2016-02-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.