NPPES file of Aug 9, 2026

Olivia Ahn, LMSW

Social Worker · Brooklyn, NY

Olivia Ahn, LMSW is a social worker with a practice address in Brooklyn, New York, and NPI 1124787569, issued on Dec 13, 2021. Check the license (New York 114520, 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.

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

NPPES recordNPPES file of Aug 9, 2026
1124787569
Name
Olivia Ahn
Credential
LMSW
Primary taxonomy
Social Worker 104100000X
License number
114520 NY
Self-reported in NPPES; status is on the state search
Practice location
590 Flatbush Ave, Brooklyn, NY 11225
Phone
(917) 722-2392
Enumerated
Dec 13, 2021
Record last updated
Dec 13, 2021 (not updated in 5 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.
Download card Updates feed

8 nearest social worker records → All 23,561 in New York → Look up another NPI →

Also registered at 590 Flatbush Ave

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

  1. Robert Dugan, CASAC T 28543Addiction (Substance Use Disorder) Counselor1225377955
  2. Sara Eldridge, LCSWClinical Social Worker1720635147
  3. Megan-Brette Hamilton, M.A., CCC-SLPSpeech-Language Pathologist1255642096
  4. Marie Moise, LPNLicensed Practical Nurse1417113655
  5. Jonathan StraughnSpecialist1760744049

Verify Olivia Ahn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this profession
    Search for license 114520    Check 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
Find the New York license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Olivia Ahn among 23,561 social worker records in New York

Olivia Ahn, LMSW is one of 23,561 social worker records with a practice address in New York. 3% 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 2021, is newer than 55% of them.

  • NPI issued2021 · 55% of these records are older, 38% newer
  • In a Medicare fileNo · 3% of these records are
  • In the CMS Doctors and Clinicians fileNo · 5% of these records are
  • Record last updated2021 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 104100000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

3,662 social worker records list a practice address in Brooklyn

They are 3,662 of the 64,057 NPPES records with a practice address in Brooklyn, and 23,561 social worker records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 23,561 in New York → Every provider in Brooklyn → Social Worker nationwide →

The 8 social worker records with the nearest ZIP codes

  1. Maria Boncyk, LCSWBrooklyn, NY 112251760898779
  2. Caroline BrighamBrooklyn, NY 112251760871271
  3. Edmund FrancisBrooklyn, NY 112251558819029
  4. Hallie Hodenfield, LCSWBrooklyn, NY 112251285008052
  5. Rachel IsnadyBrooklyn, NY 112251629458922
  6. Rose Liebb, LMSWBrooklyn, NY 112251902114861
  7. Michael Maffai, LMSWBrooklyn, NY 112251063838993
  8. Ilona Margiotta, LMSWBrooklyn, NY 112251942749551

Common questions

What is Olivia Ahn, LMSW's NPI number?

Olivia Ahn, LMSW's National Provider Identifier (NPI) is 1124787569, issued on Dec 13, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Olivia Ahn, LMSW located?

The NPPES record lists a practice address at 590 Flatbush Ave, Brooklyn, NY, 11225. Phone: (917) 722-2392. Providers update this record themselves, so call before visiting.

How can I verify Olivia Ahn, LMSW's license?

NPPES lists New York license number 114520, 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.