James P. Leone, PH.D., CGP
Psychologist · Cambridge, MA
James P. Leone, PH.D., CGP is a psychologist with a practice address in Cambridge, Massachusetts, and NPI 1164579264, issued on Jan 4, 2007. Check the license with the Massachusetts board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- James P. Leone
- Credential
- PH.D., CGP
- Primary taxonomy
- Psychologist 103T00000X
- Practice location
- 875 Massachusetts Ave, Cambridge, MA 02139
- Phone
- (617) 547-8135
- Enumerated
- Jan 4, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20120327000379); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychologist records → All 2,367 in Massachusetts → Look up another NPI →
Also registered at 875 Massachusetts Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify James P. Leone in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
James P. Leone among 2,367 psychologist records in Massachusetts
James P. Leone, PH.D., CGP is one of 2,367 psychologist records with a practice address in Massachusetts. 11% 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 2007, is newer than 29% of them.
- NPI issued2007 · 29% of these records are older, 54% newer
- In a Medicare fileNo · 11% of these records are
- In the CMS Doctors and Clinicians fileYes · 21% of these records are
- Graduated1978 · median 1997 among the 487 with a school on file
- Record last updated2007 · 68% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103T00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
184 psychologist records list a practice address in Cambridge
They are 184 of the 5,145 NPPES records with a practice address in Cambridge, and 2,367 psychologist records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,367 in Massachusetts → Every provider in Cambridge → Psychologist nationwide →
The 8 psychologist records with the nearest ZIP codes
- Alison Caruso, PSYDCambridge, MA 021391942388954
- Joseph DohertyCambridge, MA 021391215099718
- Tamara Feldman, PSYDCambridge, MA 021391639123540
- Pedro Garrido-Castillo, PH.D.Cambridge, MA 021391700829785
- Richard Greene, PHDCambridge, MA 021391396837738
- Lauren Imperatore, PHDCambridge, MA 021391770681793
- Carline Jean-Baptiste, PHDCambridge, MA 021391205882479
- Mary Kiely, MARY KIELY PHDCambridge, MA 021391609891936
Common questions
What is James P. Leone, PH.D., CGP's NPI number?
James P. Leone, PH.D., CGP's National Provider Identifier (NPI) is 1164579264, issued on Jan 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is James P. Leone, PH.D., CGP located?
The NPPES record lists a practice address at 875 Massachusetts Ave, Cambridge, MA, 02139. Phone: (617) 547-8135. Providers update this record themselves, so call before visiting.
How can I verify James P. Leone, PH.D., CGP's license?
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.