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Dr. David Van Diamond, MD

Internal Medicine Physician in Cambridge, MA · enumerated 2006 · practices at Massachusetts Institute of Technology.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1265411664

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Registry record

Entity type Individual (Type 1)
Name Dr. David Van Diamond
Credential MD
Sex Male
Practice address 77 Massachusetts Ave, Mit E23/209, Cambridge, MA, 02139
Phone (617) 253-7625
Fax (617) 253-6373
Enumeration date Jan 13, 2006
Last updated in NPPES Apr 5, 2012

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 44907 (MA) Primary
2083X0100X Occupational Medicine Physician Allopathic & Osteopathic Physicians · License 44907 (MA) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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.

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Frequently asked questions

How do I verify David Diamond's NPI record?
Cross-check NPI 1265411664 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1265411664 active?
Yes, as of the latest NPPES snapshot, NPI 1265411664 is active (record last updated 2012-04-05).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-04-05.