John Gilbert Constantine Laing
Clinical Social Worker · Boston, MA
John Gilbert Constantine Laing is a clinical social worker with a practice address in Boston, Massachusetts, and NPI 1699258988, issued on Sep 12, 2018. Check the license with the Massachusetts board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John Gilbert Constantine Laing
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- Practice location
- 71 Greenwood Ave, Boston, MA 02136
- Phone
- (617) 590-6531
- Enumerated
- Sep 12, 2018
- Record last updated
- Sep 12, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 17,815 in Massachusetts → Look up another NPI →
Verify John Gilbert Constantine Laing in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John Gilbert Constantine Laing among 17,815 clinical social worker records in Massachusetts
John Gilbert Constantine Laing is one of 17,815 clinical social worker records with a practice address in Massachusetts. 8% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2018, is newer than 65% of them.
- NPI issued2018 · 65% of these records are older, 23% newer
- In a Medicare fileNo · 8% of these records are
- In the CMS Doctors and Clinicians fileNo · 17% of these records are
- Record last updated2018 · 68% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,906 clinical social worker records list a practice address in Boston
They are 1,906 of the 41,865 NPPES records with a practice address in Boston, and 17,815 clinical social worker records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 17,815 in Massachusetts → Every provider in Boston → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Edgar AcostaHyde Park, MA 021361568755437
- Lakisha Austin, LICSWHyde Park, MA 021361851692370
- Rachel GreenHyde Park, MA 021361013425297
- David KennedyHyde Park, MA 021361467935361
- Shamieka Layne, MSWHyde Park, MA 021361558710996
- Samantha LouisHyde Park, MA 021361588002695
- Cameron MathieuBrighton, MA 021361235658337
- Myrtise Maurice, LICSWHyde Park, MA 021361871809111
Common questions
What is John Gilbert Constantine Laing's NPI number?
John Gilbert Constantine Laing's National Provider Identifier (NPI) is 1699258988, issued on Sep 12, 2018. An NPI identifies a provider in billing; it is not a license.
Where is John Gilbert Constantine Laing located?
The NPPES record lists a practice address at 71 Greenwood Ave, Boston, MA, 02136. Phone: (617) 590-6531. Providers update this record themselves, so call before visiting.
How can I verify John Gilbert Constantine Laing's license?
Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.