Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Derek Perez Pieraldi, PSYD
Clinical Psychologist in Ponce, PR · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1558491068
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Registry record
Entity type Individual (Type 1)
Name Derek Perez Pieraldi
Credential PSYD
Sex Male
Practice address 1360 Calle Eduardo Cuevas, Ponce, PR, 00717
Phone (787) 221-9198
Enumeration date Mar 6, 2007
Last updated in NPPES Oct 12, 2010
Taxonomy & licenses
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 2582 (PR) Primary
PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice.
About the PSYD 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 specialty is Derek Perez Pieraldi?
Derek Perez Pieraldi is registered in NPPES with the primary taxonomy of Clinical Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-10-12.