Melissa St. John, LMFT
NPI 1952447088 · Marriage & Family Therapist · Cambridge, MA
Melissa St. John, LMFT is a Marriage & Family Therapist provider in Cambridge, MA (NPI 1952447088).
Provider details
- NPI number
- 1952447088
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- LMFT
- Sex
- Female
- Sole proprietor
- No
- License
- 1280 (MA)
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
- 2007-01-29
- Last updated
- 2007-07-08
Frequently asked questions
- What is Melissa St. John's NPI number?
- Melissa St. John's National Provider Identifier (NPI) is 1952447088, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Melissa St. John's specialty?
- Melissa St. John is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Melissa St. John located?
- Melissa St. John's practice location on file with NPPES is 350 Cambridge St, Cambridge, MA 02141-1204.
- What is Melissa St. John's phone number?
- The practice phone number listed in the NPPES registry for Melissa St. John is (617) 547-0909.
- Is Melissa St. John's NPI active?
- Yes — Melissa St. John's NPI (1952447088) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.