Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Diana Yvonne Guintu, M.ED., LPC
Professional Counselor in Wylie, TX · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1689990269
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Registry record
Entity type Individual (Type 1)
Name Mrs. Diana Yvonne Guintu
Credential M.ED., LPC
Sex Female
Practice address 203 N Jackson Ave, Wylie, TX, 75098
Phone (972) 442-7770
Fax (972) 442-7771
Enumeration date Apr 8, 2010
Last updated in NPPES Apr 8, 2010
Taxonomy & licenses
101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 19612 (TX) Primary
LPC · Licensed Professional Counselor: A licensed mental-health counselor providing psychotherapy.
About the LPC 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
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 Diana Guintu?
Diana Guintu is registered in NPPES with the primary taxonomy of Professional 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 →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-04-08.