Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Diana M Ronell, PHD

Q: What is the NPI number for Diana Ronell?

The National Provider Identifier (NPI) for Diana Ronell is 1023041894, a Type 1 (individual) record in the CMS NPPES registry.

Psychologist in Arlington, MA · enumerated 2006.

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

National Provider Identifier

1023041894

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Registry record

Entity type Individual (Type 1)

Name Dr. Diana M Ronell

Credential PHD

Sex Female

Practice address 366 Massachusetts Ave, Suite 101, Arlington, MA, 02474

Phone (617) 491-1296

Enumeration date Jul 7, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License 6913 (MA) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Diana Ronell?

The National Provider Identifier (NPI) for Diana Ronell is 1023041894, a Type 1 (individual) record in the CMS NPPES registry.

Where does Diana Ronell practice?

The practice location on file with NPPES is in Arlington, MA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.