Melissa Dassanayake, LCSW
NPI 1679973051 · Mental Health Counselor · Seal Beach, CA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Melissa Dassanayake, LCSW is a Mental Health Counselor provider in Seal Beach, CA (NPI 1679973051).
Provider details
- NPI number
- 1679973051
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Social Worker104100000X
Behavioral Health & Social Service Providers
- Clinical Social Worker1041C0700X
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
11 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
- 2014-09-04
- Last updated
- 2026-01-19
- Certified
- 2026-01-19
Frequently asked questions
- What is Melissa Dassanayake's NPI number?
- Melissa Dassanayake's National Provider Identifier (NPI) is 1679973051, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Melissa Dassanayake's specialty?
- Melissa Dassanayake is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Melissa Dassanayake located?
- Melissa Dassanayake's practice location on file with NPPES is 1661 Golden Rain Rd, Seal Beach, CA 90740-4907.
- What is Melissa Dassanayake's phone number?
- The practice phone number listed in the NPPES registry for Melissa Dassanayake is (562) 493-9581.
- Does Melissa Dassanayake accept Medicare?
- Melissa Dassanayake is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Melissa Dassanayake's NPI active?
- Yes — Melissa Dassanayake's NPI (1679973051) is active in the NPPES registry as of the last update on 2026-01-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.