NPPES file of Aug 9, 2026

William J. Caldera, LMSW

Social Worker · Sleepy Hollow, NY

William J. Caldera, LMSW is a social worker with a practice address in Sleepy Hollow, New York, and NPI 1588103576, issued on Feb 23, 2017. Check the license (New York 099545-1, 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
1588103576
Name
William J. Caldera
Credential
LMSW
Primary taxonomy
Social Worker 104100000X
License number
099545-1 NY
Self-reported in NPPES; status is on the state search
Practice location
155 N Washington St, Sleepy Hollow, NY 10591
Phone
(914) 409-7100
Enumerated
Feb 23, 2017
Record last updated
Feb 23, 2017 (not updated in 9 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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Verify William J. Caldera 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 099545-1
    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

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William J. Caldera among 23,561 social worker records in New York

William J. Caldera, 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 2017, is newer than 34% of them.

  • NPI issued2017 · 34% of these records are older, 62% newer
  • In a Medicare fileNo · 3% of these records are
  • In the CMS Doctors and Clinicians fileNo · 5% of these records are
  • Record last updated2017 · 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).

8 social worker records list a practice address in Sleepy Hollow

They are 8 of the 472 NPPES records with a practice address in Sleepy Hollow, and 23,561 social worker records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 social worker records with the nearest ZIP codes

  1. Kimberly Andron, LCSW-RSleepy Hollow, NY 105911689944332
  2. Ellie Becker, LMSWValhalla, NY 105911386979714
  3. Charles Boardman, LMSWTarrytown, NY 105911801176722
  4. Barbara ClarkTarrytown, NY 105911164909065
  5. Jacqueline Fiorello, LCSWTarrytown, NY 105911275721383
  6. Jill Francesconi, LMSWTarrytown, NY 105911487934386
  7. Christopher Giaquinta, LMSWTarrytown, NY 105911235654989
  8. Tania Hammock, LCSWTarrytown, NY 105911912243171

Common questions

What is William J. Caldera, LMSW's NPI number?

William J. Caldera, LMSW's National Provider Identifier (NPI) is 1588103576, issued on Feb 23, 2017. An NPI identifies a provider in billing; it is not a license.

Where is William J. Caldera, LMSW located?

The NPPES record lists a practice address at 155 N Washington St, Sleepy Hollow, NY, 10591. Phone: (914) 409-7100. Providers update this record themselves, so call before visiting.

How can I verify William J. Caldera, LMSW's license?

NPPES lists New York license number 099545-1, 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.