Diya Kallivayalil, PH.D
NPI 1275754863 · Psychologist · Somerville, MA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diya Kallivayalil, PH.D is a Psychologist provider in Somerville, MA (NPI 1275754863).
Provider details
- NPI number
- 1275754863
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D
- Sex
- Female
- Sole proprietor
- No
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
83% 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
- 2007-05-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is Diya Kallivayalil's NPI number?
- Diya Kallivayalil's National Provider Identifier (NPI) is 1275754863, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diya Kallivayalil's specialty?
- Diya Kallivayalil is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Diya Kallivayalil located?
- Diya Kallivayalil's practice location on file with NPPES is Victims of Violence Program, Somerville, MA 02143.
- What is Diya Kallivayalil's phone number?
- The practice phone number listed in the NPPES registry for Diya Kallivayalil is (617) 575-5208.
- Does Diya Kallivayalil accept Medicare?
- Diya Kallivayalil is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diya Kallivayalil's NPI active?
- Yes — Diya Kallivayalil's NPI (1275754863) 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.