Sinead Montgomery Sinnott, PHD
Clinical Psychologist · Boston, MA
Sinead Montgomery Sinnott, PHD is a clinical psychologist with a practice address in Boston, Massachusetts, and NPI 1336848969, issued on Mar 2, 2023. Check the license (Massachusetts PSY10002074, as entered in NPPES) with the Massachusetts board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Sinead Montgomery Sinnott
- Credential
- PHD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- PSY10002074 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Fruit St, Boston, MA 02114
- Phone
- (617) 855-3467
- Enumerated
- Mar 2, 2023
- Record last updated
- May 28, 2026
- Medicare enrollment
- Enrolled (PECOS I20260602004641); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 3,185 in Massachusetts → Look up another NPI →
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A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Sinead Montgomery Sinnott in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license PSY10002074Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Sinead Montgomery Sinnott among 3,185 clinical psychologist records in Massachusetts
Sinead Montgomery Sinnott, PHD is one of 3,185 clinical psychologist records with a practice address in Massachusetts. 12% 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 2023, is newer than 97% of them.
- NPI issued2023 · 97% of these records are older, 2% newer
- In a Medicare fileNo · 12% of these records are
- In the CMS Doctors and Clinicians fileYes · 24% of these records are
- Graduated2024 · median 2000 among the 777 with a school on file
- Record last updated2026 · 71% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
509 clinical psychologist records list a practice address in Boston
They are 509 of the 41,865 NPPES records with a practice address in Boston, and 3,185 clinical psychologist records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 3,185 in Massachusetts → Every provider in Boston → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Carlos Bedoya, PH.D.Boston, MA 021141285836007
- Joseph Bonvie, PSY.D.Boston, MA 021141578779559
- Barbara Breslau, EDDBoston, MA 021141699749275
- David Bullis, PHDBoston, MA 021141760445977
- Jeanne Fama, PHDBoston, MA 021141053513887
- Gary Fireman, PH.D.Boston, MA 021141164643334
- Jennifer Greenberg, PSY.D.Boston, MA 021141871798454
- Luana Marques, PHDBoston, MA 021141235331067
Common questions
What is Sinead Montgomery Sinnott, PHD's NPI number?
Sinead Montgomery Sinnott, PHD's National Provider Identifier (NPI) is 1336848969, issued on Mar 2, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Sinead Montgomery Sinnott, PHD located?
The NPPES record lists a practice address at 55 Fruit St, Boston, MA, 02114. Phone: (617) 855-3467. Providers update this record themselves, so call before visiting.
How can I verify Sinead Montgomery Sinnott, PHD's license?
NPPES lists Massachusetts license number PSY10002074, as entered by the provider. Search the Massachusetts 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.