David Lloyd Marcus, PH.D. LCSW
Clinical Social Worker · New York, NY
David Lloyd Marcus, PH.D. LCSW is a clinical social worker with a practice address in New York, New York, and NPI 1972582583, issued on Jan 12, 2006. Check the license (New York 071570, as entered in NPPES) with the New York board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- David Lloyd Marcus
- Credential
- PH.D. LCSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 071570 NY
Self-reported in NPPES; status is on the state search - Practice location
- 425 Main St, New York, NY 10044
- Phone
- (212) 777-8222
- Enumerated
- Jan 12, 2006
- Record last updated
- May 27, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (212) 263-6271
- Medicare enrollment
- Enrolled (PECOS I20051206000054); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 29,293 in New York → Look up another NPI →
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A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify David Lloyd Marcus 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 071570Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
David Lloyd Marcus among 29,293 clinical social worker records in New York
David Lloyd Marcus, PH.D. LCSW 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 not. Its NPI, issued in 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 83% newer
- In a Medicare fileNo · 8% of these records are
- In the CMS Doctors and Clinicians fileYes · 17% of these records are
- Graduated1994 · median 2001 among the 5,004 with a school on file
- Record last updated2008 · 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).
6,908 clinical social worker records list a practice address in New York
They are 6,908 of the 98,468 NPPES records with a practice address in New York, and 29,293 clinical social worker records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 29,293 in New York → Every provider in New York → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- James AdichilamakelRoosevelt Island, NY 100441457179392
- Walter Fendrich, LCSWNew York, NY 100441225260292
- Janelle Hartman, LCSW-RRoosevelt Island, NY 100441144048497
- Mark McGroskyNew York, NY 100441477856599
- Ruth Noone, LCSWNew York, NY 100441235277211
- Ellen Polivy, MSWNew York, NY 100441265647663
- Paula Sobel, LCSW CLINICAL SOCIALNy, NY 100441487792479
- Yichi WeiNew York, NY 100441518814300
Common questions
What is David Lloyd Marcus, PH.D. LCSW's NPI number?
David Lloyd Marcus, PH.D. LCSW's National Provider Identifier (NPI) is 1972582583, issued on Jan 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David Lloyd Marcus, PH.D. LCSW located?
The NPPES record lists a practice address at 425 Main St, New York, NY, 10044. Phone: (212) 777-8222. Providers update this record themselves, so call before visiting.
How can I verify David Lloyd Marcus, PH.D. LCSW's license?
NPPES lists New York license number 071570, 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. 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.