NPPES file of Aug 9, 2026

Caroline O'Sullivan, LCSW

Clinical Social Worker · New York, NY

Caroline O'Sullivan, LCSW is a clinical social worker with a practice address in New York, New York, and NPI 1689280166, issued on Sep 20, 2020. Check the license with the New York board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1689280166
Name
Caroline O'Sullivan
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
Practice location
57 Saint Marks PL, New York, NY 10003
Phone
(212) 982-3470
Enumerated
Sep 20, 2020
Record last updated
Sep 20, 2020 (not updated in 6 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 57 Saint Marks PL

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Allison AbramsClinical Social Worker1841054426
  2. Megan BattersonMental Health Counselor1861634099
  3. Janette Bischoff, LPMHCMental Health Counselor1902737653
  4. Eric Blazsek, LMHCAddiction (Substance Use Disorder) Counselor1225318207
  5. Emily Brown, LMSWMental Health Counselor1558516195
  6. Triston BrownMental Health Counselor1558223388

Verify Caroline O'Sullivan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this professionCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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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.

Other clinical social worker records in New York

  1. Daniel Aaron, LCSW, PH.D.Bronx, NY1922076017
  2. Leslie Aaron, LCSWNew York, NY1740346683
  3. Michael Aaron, LMSWNew York, NY1750678868
  4. Ortal Aaron, BABronx, NY1255413142
  5. Sharon Aaron, LCSWBinghamton, NY1073521589
  6. Shawna Marie Aarons-Cooke, LCSWNew Rochelle, NY1700060076
  7. Cindy Aaronson, MSW, PHDNew York, NY1912079799
  8. Anita Aasen, LCSWVictor, NY1740569581
  9. Janet Ab EdBrooklyn, NY1033476841
  10. Julie Abada, LCSWFresh Meadows, NY1942375829

Common questions

What is Caroline O'Sullivan, LCSW's NPI number?

Caroline O'Sullivan, LCSW's National Provider Identifier (NPI) is 1689280166, issued on Sep 20, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Caroline O'Sullivan, LCSW located?

The NPPES record lists a practice address at 57 Saint Marks PL, New York, NY, 10003. Phone: (212) 982-3470. Providers update this record themselves, so call before visiting.

How can I verify Caroline O'Sullivan, LCSW's license?

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.