John Greenhalgh, LICSW
NPI 1922695196 · Clinical Social Worker · North Billerica, MA
John Greenhalgh, LICSW is a Clinical Social Worker provider in North Billerica, MA (NPI 1922695196).
Provider details
- NPI number
- 1922695196
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LICSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- 119653 (MA)
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
5 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
- 2020-12-22
- Last updated
- 2020-12-22
- Certified
- 2020-12-22
Frequently asked questions
- What is John Greenhalgh's NPI number?
- John Greenhalgh's National Provider Identifier (NPI) is 1922695196, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Greenhalgh's specialty?
- John Greenhalgh is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is John Greenhalgh located?
- John Greenhalgh's practice location on file with NPPES is 216 Rangeway Rd Unit 162, North Billerica, MA 01862-2024.
- What is John Greenhalgh's phone number?
- The practice phone number listed in the NPPES registry for John Greenhalgh is (978) 621-4479.
- Is John Greenhalgh's NPI active?
- Yes — John Greenhalgh's NPI (1922695196) is active in the NPPES registry as of the last update on 2020-12-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.