Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
James Whitney Diamantopoulos, PA-C
Physician Assistant in Brighton, MA · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1871225904
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Registry record
Entity type Individual (Type 1)
Name James Whitney Diamantopoulos
Credential PA-C
Sex Male
Practice address 280 Washington St Ste 212, Brighton, MA, 02135
Phone (617) 762-1616
Enumeration date Jun 28, 2022
Last updated in NPPES May 5, 2023
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA8861 (MA) Primary
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
How do I verify James Diamantopoulos's NPI record?
Cross-check NPI 1871225904 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1871225904 active?
Yes, as of the latest NPPES snapshot, NPI 1871225904 is active (record last updated 2023-05-05).
Other providers at this practice address
Browse all → Newton Watertown Dermatology Assoc. PC Dermatology Physician · Brighton, MA NPI 1558477869 Integrated Dermatology Group, LLC Dermatology Physician · Brighton, MA NPI 1265941082 Integrated Dermatology of Brighton, LLC Dermatology Physician · Brighton, MA NPI 1760028872 Integrated Dermatology of Newton Watertown, LLC Dermatology Physician · Brighton, MA NPI 1356988844 Jacqueline Flaherty Physician Assistant · Brighton, MA NPI 1316622640 Integrated Dermatology of Cape Cod LLC Dermatology Physician · Brighton, MA NPI 1376385054
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-05-05.