Mary Callahan, LMSW-CC
NPI 1427386085 · Clinical Social Worker · South Portland, ME
Mary Callahan, LMSW-CC is a Clinical Social Worker provider in South Portland, ME (NPI 1427386085).
Provider details
- NPI number
- 1427386085
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LMSW-CC
- Sex
- Female
- Sole proprietor
- Yes
- License
- MC11870 (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
16 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
- 2009-11-19
- Last updated
- 2009-11-19
Frequently asked questions
- What is Mary Callahan's NPI number?
- Mary Callahan's National Provider Identifier (NPI) is 1427386085, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Callahan's specialty?
- Mary Callahan is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mary Callahan located?
- Mary Callahan's practice location on file with NPPES is 609 Main St, South Portland, ME 04106-5453.
- What is Mary Callahan's phone number?
- The practice phone number listed in the NPPES registry for Mary Callahan is (207) 239-1854.
- Is Mary Callahan's NPI active?
- Yes — Mary Callahan's NPI (1427386085) is active in the NPPES registry as of the last update on 2009-11-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.