Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Diane Marie Quinn
Counselor in Ontario, CA · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1184947251
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Diane Marie Quinn
Sex Female
Practice address 2930 Inland Empire Blvd, Suite 120, Ontario, CA, 91764
Phone (909) 980-6700
Fax (909) 980-6003
Enumeration date Mar 3, 2010
Last updated in NPPES Mar 3, 2010
Taxonomy & licenses
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
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Diane Quinn?
Diane Quinn is registered in NPPES with the primary taxonomy of Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Angelica Frutis Mental Health Counselor · Ontario, CA NPI 1962629980 Ruth Albarran Mental Health Counselor · Ontario, CA NPI 1578744488 Luis Deleon Marriage & Family Therapist · Ontario, CA NPI 1255587259 Zinnia Rose Counselor · Ontario, CA NPI 1639323900 Elisha Araoz Mental Health Counselor · Ontario, CA NPI 1699912311 Lindsey Haussamen Mental Health Counselor · Ontario, CA NPI 1790923027 Jennifer Rosales Mental Health Counselor · Ontario, CA NPI 1528209533 Cristina Ruiz Mazon Mental Health Counselor · Ontario, CA NPI 1689980278
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-03-03.