John Mattathil John, L.C.S.W.
Clinical Social Worker · Brooklyn, NY
John Mattathil John, L.C.S.W. is a clinical social worker with a practice address in Brooklyn, New York, and NPI 1023291952, issued on Dec 13, 2007. Check the license (New York 049236, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Mattathil John
- Credential
- L.C.S.W.
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 049236 NY
Self-reported in NPPES; status is on the state search - Practice location
- 185 Montague St, Brooklyn, NY 11201
- Phone
- (718) 222-1701
- Enumerated
- Dec 13, 2007
- Record last updated
- Dec 13, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (718) 222-1474
- Medicare enrollment
- Enrolled (PECOS I20100301000344); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 29,293 in New York → Look up another NPI →
Also registered at 185 Montague St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Susan Kolin-Liebman, D.M.D.Orthodontics and Dentofacial Orthopedics Dentistry1700959756
- Crystal Quashie, PT, DPTPhysical Therapist1366859068
- Mikaela Sargeant, AUDAudiologist1720915523
Verify John Mattathil John in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license 049236Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Mhh Psychology And Speech-Language Pathology Therapy Services PLLCNew Hyde Park, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Mattathil John among 29,293 clinical social worker records in New York
John Mattathil John, L.C.S.W. is one of 29,293 clinical social worker records with a practice address in New York. 8% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 17% of them.
- NPI issued2007 · 17% of these records are older, 68% newer
- In a Medicare fileYes · 8% of these records are
- In the CMS Doctors and Clinicians fileYes · 17% of these records are
- Graduated2004 · median 2001 among the 5,004 with a school on file
- Record last updated2007 · 65% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3,449 clinical social worker records list a practice address in Brooklyn
They are 3,449 of the 64,057 NPPES records with a practice address in Brooklyn, and 29,293 clinical social worker records in New York.
All 29,293 in New York → Every provider in Brooklyn → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Patricia Bowles-Lyons, LCSW, LPBrooklyn, NY 112011598782195
- Dolores Caviglia-Fischer, LCSWBrooklyn, NY 112011912990623
- Joan Daly, LCSWBrooklyn, NY 112011275599383
- Nancy Dannenberg, LCSWBrooklyn, NY 112011578500583
- Stephanie Despins-Daly, LCSWBrooklyn, NY 112011053372573
- Victoria Dexter, LCSWBrooklyn, NY 112011760445563
- Cheryl Finley, LCSWBrooklyn, NY 112011891756078
- Ernest Fried, PH.D.; LCSWBrooklyn, NY 112011447229539
Common questions
What is John Mattathil John, L.C.S.W.'s NPI number?
John Mattathil John, L.C.S.W.'s National Provider Identifier (NPI) is 1023291952, issued on Dec 13, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Mattathil John, L.C.S.W. located?
The NPPES record lists a practice address at 185 Montague St, Brooklyn, NY, 11201. Phone: (718) 222-1701. Providers update this record themselves, so call before visiting.
How can I verify John Mattathil John, L.C.S.W.'s license?
NPPES lists New York license number 049236, as entered by the provider. Search the New York 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. Medicare files from data.cms.gov. 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.