Registry data as of Aug 27, 2026

Chris Keizerstein

Social Worker · East Hampton, NY

Chris Keizerstein is a social worker with a practice address in East Hampton, New York, and NPI 1912781758, issued on Aug 22, 2023. 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, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1912781758
Name
Chris Keizerstein
Primary taxonomy
Social Worker 104100000X
Practice location
316 Accabonac RD, East Hampton, NY 11937
Phone
(631) 324-3344
Enumerated
Aug 22, 2023
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 316 Accabonac RD

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

  1. Carolina Agudelo GonzalezGroup Psychotherapy Psychologist1922652353
  2. Dylan BennettStudent in an Organized Health Care Education/Training Program1467173112
  3. Mollie CohenSocial Worker1992419501
  4. Hali Devlin, MHCMental Health Counselor1962070813
  5. Monica Guillen, LMSWSocial Worker1932675907
  6. Cristina Jimenez, MSW, MASocial Worker1730884420

Verify Chris Keizerstein 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
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.

19 social worker records list a practice address in East Hampton

They are 19 of the 189 NPPES records with a practice address in East Hampton, 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 19 in East Hampton → All 23,561 in New York → Every provider in East Hampton →

Other social worker records in New York

  1. Sheila AagnerNew York, NY1801720784
  2. Desiree AaronBronx, NY1851277875
  3. Joy Aaron, LMSWAlbany, NY1295376192
  4. Fay Aaronson, LCSW-RMargaretville, NY1710253224
  5. Iliana Abad, LMSWBrooklyn, NY1427328194
  6. Samantha AbadNew York, NY1831948561
  7. Angelyse Abalco, LMSWSmithtown, NY1083255251
  8. Nicola Abbadessa, LCSWRego Park, NY1235239310
  9. Fadhil AbbasBuffalo, NY1588222418
  10. Marya Abbas, LMSWJackson Heights, NY1770355190

Common questions

What is Chris Keizerstein's NPI number?

Chris Keizerstein's National Provider Identifier (NPI) is 1912781758, issued on Aug 22, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Chris Keizerstein located?

The NPPES record lists a practice address at 316 Accabonac RD, East Hampton, NY, 11937. Phone: (631) 324-3344. Providers update this record themselves, so call before visiting.

How can I verify Chris Keizerstein'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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Built from the named public files by PlainDoctor's data pipeline (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) 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 27, 2026.