Claire Alvarez
NPI 1891230553 · Social Worker · Lowell, MA
Claire Alvarez is a Social Worker provider in Lowell, MA (NPI 1891230553).
Provider details
- NPI number
- 1891230553
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
Behavioral Health & Social Service Providers
- Counselor101Y00000X
Behavioral Health & Social Service Providers
- Psychologist103T00000X
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
9 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
- 2017-01-04
- Last updated
- 2026-01-05
- Certified
- 2026-01-05
Frequently asked questions
- What is Claire Alvarez's NPI number?
- Claire Alvarez's National Provider Identifier (NPI) is 1891230553, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Claire Alvarez's specialty?
- Claire Alvarez is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Claire Alvarez located?
- Claire Alvarez's practice location on file with NPPES is 77 E Merrimack St, Lowell, MA 01852-1251.
- What is Claire Alvarez's phone number?
- The practice phone number listed in the NPPES registry for Claire Alvarez is (978) 744-9705.
- Is Claire Alvarez's NPI active?
- Yes — Claire Alvarez's NPI (1891230553) is active in the NPPES registry as of the last update on 2026-01-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.