NPPES file of Aug 9, 2026

Thrassos S. Calligas, M.D.

Child & Adolescent Psychiatry Physician · Brighton, MA

Thrassos S. Calligas, M.D. is a child & adolescent psychiatry physician with a practice address in Brighton, Massachusetts, and NPI 1245277284, issued on May 31, 2006. Check the license (Massachusetts 42645, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1245277284
Name
Thrassos S. Calligas
Credential
M.D.
Primary taxonomy
Child & Adolescent Psychiatry Physician 2084P0804X
License number
42645 MA
Self-reported in NPPES; status is on the state search
Practice location
30 Warren St, Brighton, MA 02135
Phone
(617) 779-1688
Enumerated
May 31, 2006
Record last updated
Jul 13, 2026
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 30 Warren St

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

  1. Alexandra Adams, MAClinical Child & Adolescent Psychologist1942190152
  2. Angeline Alicea, LCSWClinical Social Worker1720598477
  3. Robert AntonelliClinical Child & Adolescent Psychologist1457088353
  4. Benjamin Aronson, LMHCClinical Child & Adolescent Psychologist1043878507
  5. Rachel Azrin, LCSWClinical Social Worker1639338916
  6. Cristina Baens, DMD, MSCDPediatric Dentistry1689759763

Verify Thrassos S. Calligas 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 42645
    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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67% fewer Medicare Part D claims than the average child & adolescent psychiatry physician in 2024

168 Medicare Part D claims for 11 beneficiaries, against an average of 504 among the 3,545 providers of this specialty who prescribed in Part D.

  1. Thrassos Calligas168
  2. Specialty average504

Most prescribed

  1. Clonazepam46 claims
  2. Bupropion Xl12 claims
  3. Risperidone12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Thrassos S. Calligas among 336 child & adolescent psychiatry physician records in Massachusetts

Thrassos S. Calligas, M.D. is one of 336 child & adolescent psychiatry physician records with a practice address in Massachusetts. 51% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 53% newer
  • In a Medicare fileYes · 51% of these records are
  • In the CMS Doctors and Clinicians fileNo · 29% of these records are
  • Record last updated2026 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0804X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Child & Adolescent Psychiatry Physician providers in Massachusetts

There are 336 child & adolescent psychiatry physician records in Massachusetts.

The 8 child & adolescent psychiatry physician records with the nearest ZIP codes

  1. Jessica Becker, MDBrighton, MA 021351326429036
  2. Pandeeswari Raveendran, M.D.Brighton, MA 021351124247267
  3. Crystal Han, M.D.Cambridge, MA 021381922539352
  4. Alexandra Harrison, MDCambridge, MA 021381568446706
  5. Mireya Nadal-Vicens, M.D., PH.D.Cambridge, MA 021381962501155
  6. Aleksandra Phillips, M.D.Cambridge, MA 021381316018450
  7. Nancy Rappaport, M.D.Cambridge, MA 021381295814481
  8. Ayelet Barkai, M.D.Cambridge, MA 021391841247582

Common questions

What is Thrassos S. Calligas, M.D.'s NPI number?

Thrassos S. Calligas, M.D.'s National Provider Identifier (NPI) is 1245277284, issued on May 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thrassos S. Calligas, M.D. located?

The NPPES record lists a practice address at 30 Warren St, Brighton, MA, 02135. Phone: (617) 779-1688. Providers update this record themselves, so call before visiting.

How can I verify Thrassos S. Calligas, M.D.'s license?

NPPES lists Massachusetts license number 42645, 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.

How much does Thrassos S. Calligas, M.D. prescribe under Medicare Part D?

In 2024, Thrassos S. Calligas, M.D. had 168 Medicare Part D claims for 11 beneficiaries; the average among child & adolescent psychiatry physician prescribers was 504. Part D covers Medicare prescriptions 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. Medicare files from data.cms.gov. 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.