IndividualActive
Jessica Leffler, LMHC
NPI 1851620330 · Mental Health Counselor · Boston, MA
Jessica Leffler, LMHC is a Mental Health Counselor provider in Boston, MA (NPI 1851620330).
Provider details
- NPI number
- 1851620330
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- LMHC
- Sex
- Female
- Sole proprietor
- No
- License
- 6949 (MA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(84/100 index)
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
206 Clarendon St
Boston, MA 02116-3722
Phone: (617) 536-0944
Fax: (617) 536-8916
Street-level locationGet directions
Mailing address
206 Clarendon Street
Boston, MA 02116
Registry dates
- Enumerated
- 2009-12-14
- Last updated
- 2009-12-14
Frequently asked questions
- What is Jessica Leffler's NPI number?
- Jessica Leffler's National Provider Identifier (NPI) is 1851620330, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jessica Leffler's specialty?
- Jessica Leffler is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Jessica Leffler located?
- Jessica Leffler's practice location on file with NPPES is 206 Clarendon St, Boston, MA 02116-3722.
- What is Jessica Leffler's phone number?
- The practice phone number listed in the NPPES registry for Jessica Leffler is (617) 536-0944.
- Is Jessica Leffler's NPI active?
- Yes — Jessica Leffler's NPI (1851620330) is active in the NPPES registry as of the last update on 2009-12-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.