Ellen Zimmerman, L.C.S.W.
NPI 1659300457 · Clinical Social Worker · Portland, ME
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ellen Zimmerman, L.C.S.W. is a Clinical Social Worker provider in Portland, ME (NPI 1659300457).
Provider details
- NPI number
- 1659300457
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- L.C.S.W.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 00634 (ME)
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
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
Mailing address
Registry dates
- Enumerated
- 2006-07-02
- Last updated
- 2019-08-27
Frequently asked questions
- What is Ellen Zimmerman's NPI number?
- Ellen Zimmerman's National Provider Identifier (NPI) is 1659300457, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ellen Zimmerman's specialty?
- Ellen Zimmerman is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Ellen Zimmerman located?
- Ellen Zimmerman's practice location on file with NPPES is 205 Ocean Ave, Portland, ME 04103-5712.
- What is Ellen Zimmerman's phone number?
- The practice phone number listed in the NPPES registry for Ellen Zimmerman is (207) 773-7993.
- Does Ellen Zimmerman accept Medicare?
- Ellen Zimmerman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ellen Zimmerman's NPI active?
- Yes — Ellen Zimmerman's NPI (1659300457) is active in the NPPES registry as of the last update on 2019-08-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.