Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Diana Horowitz, M.S., L.AC.
Acupuncturist in Denver, CO · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1770546996
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Registry record
Entity type Individual (Type 1)
Name Ms. Diana Horowitz
Credential M.S., L.AC.
Sex Female
Practice address 3867 Tennyson St, Ste D, Denver, CO, 80212
Phone (720) 404-9926
Enumeration date Apr 10, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
LAC · Licensed Acupuncturist: A practitioner licensed to perform acupuncture.
About the LAC 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.
Frequently asked questions
What is the NPI number for Diana Horowitz?
The National Provider Identifier (NPI) for Diana Horowitz is 1770546996, a Type 1 (individual) record in the CMS NPPES registry.
Where does Diana Horowitz practice?
The practice location on file with NPPES is in Denver, CO. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.