NPPES file of Aug 9, 2026

William Barry Kayen, O.D.

Optometrist · New York, NY

William Barry Kayen, O.D. is an optometrist with a practice address in New York, New York, and NPI 1295802221, issued on Nov 28, 2006. Check the license (New York T003826-1, 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
1295802221
Name
William Barry Kayen
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
T003826-1 NY
Self-reported in NPPES; status is on the state search
Practice location
347 5TH Ave, New York, NY 10016
Phone
(212) 868-2020
Enumerated
Nov 28, 2006
Record last updated
Sep 30, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(516) 374-3658
Medicare enrollment
Enrolled (PECOS I20101220000338); accepts Medicare assignment
Medical or professional school
Illinois College Of Optometry At Chicago, 1979
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest optometrist records → All 3,535 in New York → Look up another NPI →

Also registered at 347 5TH Ave

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

  1. Helene Anisfeld, MSWSocial Worker1952469421
  2. Alexis Auleta, LCSWClinical Social Worker1538457148
  3. Darcy Becker, LCSWClinical Social Worker1124076187
  4. Deborah Berry, PH.D.Psychologist1629228531
  5. William DanzOcularist1508969106
  6. Prudence Emery, LCSWClinical Social Worker1629169917

Verify William Barry Kayen 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 T003826-1    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 Barry Kayen among 3,535 optometrist records in New York

William Barry Kayen, O.D. is one of 3,535 optometrist records with a practice address in New York. 65% 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 8% of them.

  • NPI issued2006 · 8% of these records are older, 63% newer
  • In a Medicare fileNo · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 47% of these records are
  • Graduated1979 · median 2008 among the 1,667 with a school on file
  • Record last updated2010 · 66% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in New York

There are 3,535 optometrist records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 3,535 in New York → Every provider in New York → Optometrist nationwide →

The 8 optometrist records with the nearest ZIP codes

  1. Nadezhda Belous, ODNew York City, NY 100161972607547
  2. Jonah Berman, ODNew York, NY 100161194702589
  3. Happy Hong, O.D.New York, NY 100161427052984
  4. Philip Kruger, O.D., PH.D.New York, NY 100161487629168
  5. Christine Law, O.D.New York, NY 100161487746392
  6. Kenneth Mendelsohn, ODNew York, NY 100161225176878
  7. Fran Reinstein, O.D.New York, NY 100161962404079
  8. Theresa Rostkowski, O.D., M.S.W., M.A.New York, NY 100161841380748

Common questions

What is William Barry Kayen, O.D.'s NPI number?

William Barry Kayen, O.D.'s National Provider Identifier (NPI) is 1295802221, issued on Nov 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Barry Kayen, O.D. located?

The NPPES record lists a practice address at 347 5TH Ave, New York, NY, 10016. Phone: (212) 868-2020. Providers update this record themselves, so call before visiting.

How can I verify William Barry Kayen, O.D.'s license?

NPPES lists New York license number T003826-1, 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.

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.