Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Amy Suzanne Diehl, PSY.D.
Psychologist in Wilmington, DE · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1649399247
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Registry record
Entity type Individual (Type 1)
Name Amy Suzanne Diehl
Credential PSY.D.
Sex Female
Practice address 1521 Concord Pike, Suite 103, Wilmington, DE, 19803
Phone (302) 428-0205
Fax (302) 428-1123
Enumeration date Mar 28, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
103T00000X Psychologist Behavioral Health & Social Service Providers · License B1-0000706 (DE) Primary
103T00000X Psychologist Behavioral Health & Social Service Providers · License PS015272 (PA) Secondary
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
Is NPI 1649399247 active?
Yes, as of the latest NPPES snapshot, NPI 1649399247 is active (record last updated 2007-07-08).
How do I verify Amy Diehl's NPI record?
Cross-check NPI 1649399247 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 → Kelly Cunningham Professional Counselor · Wilmington, DE NPI 1710947536 Donald Unger Psychologist · Wilmington, DE NPI 1629177563 Ann Rogerson Social Worker · Wilmington, DE NPI 1194824045 Kathryn Bove Psychologist · Wilmington, DE NPI 1518066463 Sharon Metaxas Social Worker · Wilmington, DE NPI 1699873596 Dorothy Rawley Psychologist · Wilmington, DE NPI 1588762470 Sharon Jacobs Psychologist · Wilmington, DE NPI 1518066455 Hilna Moskowitz Psychologist · Wilmington, DE NPI 1952400897
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.