Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Heather Marie Castiglioni, PAC
Physician Assistant in Dover, DE · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1366453607
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Registry record
Entity type Individual (Type 1)
Name Heather Marie Castiglioni
Credential PAC
Sex Female
Practice address 640 S State St, Dover, DE, 19901
Phone (302) 744-7122
Enumeration date Aug 11, 2006
Last updated in NPPES Oct 16, 2018
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License C50000489 (DE) Primary
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 1366453607 active?
Yes, as of the latest NPPES snapshot, NPI 1366453607 is active (record last updated 2018-10-16).
How do I verify Heather Castiglioni's NPI record?
Cross-check NPI 1366453607 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 → William Rosenfeld Emergency Medical Services (Emergency Medicine) Physician · Dover, DE NPI 1841295136 Robert Mckennett Certified Registered Nurse Anesthetist · Dover, DE NPI 1609872480 Catherine Westrom Certified Registered Nurse Anesthetist · Dover, DE NPI 1821081886 Bayhealth Medical Center / Kent General Hospital Family Medicine Physician · Dover, DE NPI 1962495838 Carolyn Lane Certified Registered Nurse Anesthetist · Dover, DE NPI 1154317717 Kimberly Westra Certified Registered Nurse Anesthetist · Dover, DE NPI 1861489189 Neal Brickhouse Anesthesiology Physician · Dover, DE NPI 1588653810 Constance Brauer Certified Registered Nurse Anesthetist · Dover, DE NPI 1265421598
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-10-16.