NPPES file of Aug 9, 2026

Joy B. Cass, M.D.

Child & Adolescent Psychiatry Physician · Winchester, MA

Joy B. Cass, M.D. is a child & adolescent psychiatry physician with a practice address in Winchester, Massachusetts, and NPI 1407915747, issued on Dec 6, 2006. Check the license (Massachusetts 33743, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; 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
1407915747
Name
Joy B. Cass
Credential
M.D.
Primary taxonomy
Child & Adolescent Psychiatry Physician 2084P0804X
License number
33743 MA
Self-reported in NPPES; status is on the state search
Practice location
15 Dix St, Winchester, MA 01890
Phone
(781) 729-0960
Enumerated
Dec 6, 2006
Record last updated
Aug 28, 2009 (not updated in 17 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 15 Dix St

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

  1. Richard Dallow, MDOphthalmology Physician1083612360
  2. Patricia Joyce, A.N.P.Primary Care Nurse Practitioner1598726044
  3. William Numa, M.D.Facial Plastic Surgery Physician1538157987
  4. Frank Virnelli, MDPlastic Surgery Physician1215948195

Verify Joy B. Cass in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 33743
    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
Open the Massachusetts license search

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Child & Adolescent Psychiatry Physician providers in Massachusetts

There are 336 child & adolescent psychiatry physician records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other child & adolescent psychiatry physician records in Massachusetts

  1. Patricia Abbott, MDWestwood, MA1417001686
  2. Annah Abrams, MDBoston, MA1689665234
  3. Ashley Adams, MDBoston, MA1790342053
  4. David Adams, MDBoston, MA1942752993
  5. Peter Adams, M.D.Newton, MA1710138011
  6. Solomon Adelsky, M.D.Cambridge, MA1023350931
  7. David Agger, LICSWFalmouth, MA1588764633
  8. Blaise Aguirre, MDBelmont, MA1619936846
  9. Ireen Ahmed, MDBoston, MA1548674807
  10. Mary Ahn, M.D.Boston, MA1952429532

Common questions

What is Joy B. Cass, M.D.'s NPI number?

Joy B. Cass, M.D.'s National Provider Identifier (NPI) is 1407915747, issued on Dec 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Joy B. Cass, M.D. located?

The NPPES record lists a practice address at 15 Dix St, Winchester, MA, 01890. Phone: (781) 729-0960. Providers update this record themselves, so call before visiting.

How can I verify Joy B. Cass, M.D.'s license?

NPPES lists Massachusetts license number 33743, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.