Ruth Firmin, PHD
NPI 1689233702 · Clinical Psychologist · Belmont, MA
Ruth Firmin, PHD is a Clinical Psychologist provider in Belmont, MA (NPI 1689233702).
Provider details
- NPI number
- 1689233702
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- No
- License
- PS01813 (RI)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
7 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
- 2019-06-12
- Last updated
- 2021-09-01
- Certified
- 2021-09-01
Frequently asked questions
- What is Ruth Firmin's NPI number?
- Ruth Firmin's National Provider Identifier (NPI) is 1689233702, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ruth Firmin's specialty?
- Ruth Firmin is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Ruth Firmin located?
- Ruth Firmin's practice location on file with NPPES is 115 Mill St, Belmont, MA 02478-1064.
- What is Ruth Firmin's phone number?
- The practice phone number listed in the NPPES registry for Ruth Firmin is (617) 855-3445.
- Is Ruth Firmin's NPI active?
- Yes — Ruth Firmin's NPI (1689233702) is active in the NPPES registry as of the last update on 2021-09-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.