Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Diane Louise Rotnem, PHD, LICSW

Clinical Social Worker in Guilford, CT · enumerated 2007.

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

National Provider Identifier

1891902979

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Diane Louise Rotnem

Credential PHD, LICSW

Sex Female

Practice address Guilford, CT, 06437

Phone (203) 453-1572

Enumeration date May 17, 2007

Last updated in NPPES Aug 27, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License AP08-992 (MN) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 19567 (MN) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 000535 (CT) Primary

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

Other identifiers

Identifier	Type	State	Issuer
14000535CT 01	Other	CT	ANTHEM PROVIDER ID

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

Is NPI 1891902979 active?

Yes, as of the latest NPPES snapshot, NPI 1891902979 is active (record last updated 2024-08-27).

How do I verify Diane Rotnem's NPI record?

Cross-check NPI 1891902979 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Blair Mccracken Clinical Psychologist · Guilford, CT NPI 1124241492 Deborah Abbott Clinical Psychologist · Guilford, CT NPI 1023223450

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-08-27.