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

Ms. Diane Marie Blackwood, LMSW LADC

Addiction (Substance Use Disorder) Counselor in Vernon Rockville, CT · enumerated 2017.

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

National Provider Identifier

1811407133

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Ms. Diane Marie Blackwood

Credential LMSW LADC

Sex Female

Practice address Vernon Rockville, CT, 06066

Phone (860) 872-0501

Enumeration date Oct 2, 2017

Last updated in NPPES Oct 2, 2017

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

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 1040 (CT) Secondary

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 1239 (CT) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1811407133 active?

Yes, as of the latest NPPES snapshot, NPI 1811407133 is active (record last updated 2017-10-02).

How do I verify Diane Blackwood's NPI record?

Cross-check NPI 1811407133 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 →

Howard Weiner Psychiatry Physician · Vernon, CT NPI 1891787859 Edna Arrieta Anesthesiology Physician · Rockville, CT NPI 1457326837 Alfred Caudullo Emergency Medicine Physician · Vernon, CT NPI 1942276118 Louise Caudullo Emergency Medicine Physician · Vernon, CT NPI 1558338079 Kathleen Bannon Women's Health Nurse Practitioner · Rockville, CT NPI 1811964034 Rockville General Hospital, Inc General Acute Care Hospital · Vernon, CT NPI 1871536227 Eastern Connecticut Pathology Consultants, P.C. Anatomic Pathology & Clinical Pathology Physician · Vernon, CT NPI 1346363215 Sarah Von Duntz Clinical Social Worker · Vernon, CT NPI 1770886400

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-10-02.