Samuel J. Sinclair, PHD - PSYCHOLOGIST
Clinical Psychologist · Sudbury, MA
Samuel J. Sinclair, PHD - PSYCHOLOGIST is a clinical psychologist with a practice address in Sudbury, Massachusetts, and NPI 1932301751, issued on Jun 4, 2007. Check the license (Massachusetts 8893, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Samuel J. Sinclair
- Credential
- PHD - PSYCHOLOGIST
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 8893 MA
Self-reported in NPPES; status is on the state search - Practice location
- Samuel Justin Sinclair, Ph.d. PLLC, Sudbury, MA 01776
- Phone
- (617) 905-9908
- Enumerated
- Jun 4, 2007
- Record last updated
- Jun 16, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20081106000010); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 3,185 in Massachusetts → Look up another NPI →
Verify Samuel J. Sinclair in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 8893Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Brigham And Womens Physicians Organization IncJamaica Plain, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Samuel J. Sinclair among 3,185 clinical psychologist records in Massachusetts
Samuel J. Sinclair, PHD - PSYCHOLOGIST 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. Its NPI, issued in 2007, is newer than 30% of them.
- NPI issued2007 · 30% of these records are older, 50% newer
- In a Medicare fileYes · 12% of these records are
- In the CMS Doctors and Clinicians fileYes · 24% of these records are
- Graduated2007 · median 2000 among the 777 with a school on file
- Record last updated2020 · 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).
11 clinical psychologist records list a practice address in Sudbury
They are 11 of the 281 NPPES records with a practice address in Sudbury, and 3,185 clinical psychologist records in Massachusetts.
All 3,185 in Massachusetts → Every provider in Sudbury → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Steven Fischer, PSY.D.Sudbury, MA 017761205879145
- Allison Flynn, PSYDSudbury, MA 017761518274851
- Joel Goldstein, PHDSudbury, MA 017761629276480
- Stanley GutowskiSudbury, MA 017761386142297
- Martin Jacobs, PHDSunbury, MA 017761083753271
- Lisa Lentino, PH.D.Sudbury, MA 017761902822489
- Richard Monahan, PH.D.Sudbury, MA 017761891721809
- Alessandro Piselli, PH.D.Sudbury, MA 017761346549672
Common questions
What is Samuel J. Sinclair, PHD - PSYCHOLOGIST's NPI number?
Samuel J. Sinclair, PHD - PSYCHOLOGIST's National Provider Identifier (NPI) is 1932301751, issued on Jun 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Samuel J. Sinclair, PHD - PSYCHOLOGIST located?
The NPPES record lists a practice address at Samuel Justin Sinclair, Ph.d. PLLC, Sudbury, MA, 01776. Phone: (617) 905-9908. Providers update this record themselves, so call before visiting.
How can I verify Samuel J. Sinclair, PHD - PSYCHOLOGIST's license?
NPPES lists Massachusetts license number 8893, 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. 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.