IndividualActive
Irene Merwin, PSY.D.
NPI 1902944531 · Clinical Psychologist · Cambridge, MA
Irene Merwin, PSY.D. is a Clinical Psychologist provider in Cambridge, MA (NPI 1902944531).
Provider details
- NPI number
- 1902944531
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 3622 (MA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 index)
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
240 Concord Ave
1-A
Cambridge, MA 02138-1337
Phone: (617) 731-9096
Street-level locationGet directions
Mailing address
52 Harrison St
Brookline, MA 02446-6958
Registry dates
- Enumerated
- 2007-02-03
- Last updated
- 2007-07-08
Frequently asked questions
- What is Irene Merwin's NPI number?
- Irene Merwin's National Provider Identifier (NPI) is 1902944531, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Irene Merwin's specialty?
- Irene Merwin is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Irene Merwin located?
- Irene Merwin's practice location on file with NPPES is 240 Concord Ave, Cambridge, MA 02138-1337.
- What is Irene Merwin's phone number?
- The practice phone number listed in the NPPES registry for Irene Merwin is (617) 731-9096.
- Is Irene Merwin's NPI active?
- Yes — Irene Merwin's NPI (1902944531) 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.