Ruth Liberfarb, MD PHD
NPI 1598739211 · Child & Adolescent Psychiatry Physician · Newton, MA
Ruth Liberfarb, MD PHD is a Child & Adolescent Psychiatry Physician provider in Newton, MA (NPI 1598739211).
Provider details
- NPI number
- 1598739211
- Entity type
- Individual
- Primary specialty
- Child & Adolescent Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD PHD
- Sex
- Female
- Sole proprietor
- No
- License
- NONE (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2006-02-17
- Last updated
- 2013-03-20
Frequently asked questions
- What is Ruth Liberfarb's NPI number?
- Ruth Liberfarb's National Provider Identifier (NPI) is 1598739211, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ruth Liberfarb's specialty?
- Ruth Liberfarb is listed in the NPPES registry with a primary specialty of Child & Adolescent Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Ruth Liberfarb located?
- Ruth Liberfarb's practice location on file with NPPES is 55 Montrose St, Newton, MA 02458-2726.
- What is Ruth Liberfarb's phone number?
- The practice phone number listed in the NPPES registry for Ruth Liberfarb is (617) 332-2071.
- Is Ruth Liberfarb's NPI active?
- Yes — Ruth Liberfarb's NPI (1598739211) is active in the NPPES registry as of the last update on 2013-03-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.