IndividualActive
Leslie Nicholson
NPI 1861942534 · Mental Health Counselor · Boston, MA
Leslie Nicholson is a Mental Health Counselor provider in Boston, MA (NPI 1861942534).
Provider details
- NPI number
- 1861942534
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(65/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 yrs in NPPES registry
- Profile completeness38% of score
83% 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
774 Albany St
Boston, MA 02118-2520
Phone: (617) 534-9405
Fax: (617) 534-3491
Street-level locationGet directions
Mailing address
1010 Massachusetts Ave
Boston, MA 02118-2600
Registry dates
- Enumerated
- 2016-10-06
- Last updated
- 2016-10-06
Frequently asked questions
- What is Leslie Nicholson's NPI number?
- Leslie Nicholson's National Provider Identifier (NPI) is 1861942534, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leslie Nicholson's specialty?
- Leslie Nicholson is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Leslie Nicholson located?
- Leslie Nicholson's practice location on file with NPPES is 774 Albany St, Boston, MA 02118-2520.
- What is Leslie Nicholson's phone number?
- The practice phone number listed in the NPPES registry for Leslie Nicholson is (617) 534-9405.
- Is Leslie Nicholson's NPI active?
- Yes — Leslie Nicholson's NPI (1861942534) is active in the NPPES registry as of the last update on 2016-10-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.