IndividualActive
Nancy Crehan, LICSW
NPI 1841501137 · Clinical Social Worker · Boston, MA
Nancy Crehan, LICSW is a Clinical Social Worker provider in Boston, MA (NPI 1841501137).
Provider details
- NPI number
- 1841501137
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LICSW
- Sex
- Female
- Sole proprietor
- No
- License
- 1023306 (MA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(83/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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
133 Brookline Ave
Hematology/Oncology
Boston, MA 02215-3904
Phone: (617) 421-5950
Fax: (617) 421-6008
Street-level locationGet directions
Mailing address
147 Milk St
Boston, MA 02109-4806
Registry dates
- Enumerated
- 2010-07-01
- Last updated
- 2010-07-01
Frequently asked questions
- What is Nancy Crehan's NPI number?
- Nancy Crehan's National Provider Identifier (NPI) is 1841501137, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Crehan's specialty?
- Nancy Crehan is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Nancy Crehan located?
- Nancy Crehan's practice location on file with NPPES is 133 Brookline Ave, Boston, MA 02215-3904.
- What is Nancy Crehan's phone number?
- The practice phone number listed in the NPPES registry for Nancy Crehan is (617) 421-5950.
- Is Nancy Crehan's NPI active?
- Yes — Nancy Crehan's NPI (1841501137) is active in the NPPES registry as of the last update on 2010-07-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.