Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Gary A. Casaccio, M.D.
Psychiatry Physician in Wheaton, IL · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1063593721
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Registry record
Entity type Individual (Type 1)
Name Dr. Gary A. Casaccio
Credential M.D.
Sex Male
Practice address 2100 Manchester Rd, Suite 1510, Wheaton, IL, 60187
Phone (630) 653-1717
Fax (630) 653-9691
Enumeration date Oct 18, 2006
Last updated in NPPES Aug 18, 2011
Taxonomy & licenses
2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 036-089544 (IL) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD 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 1063593721 active?
Yes, as of the latest NPPES snapshot, NPI 1063593721 is active (record last updated 2011-08-18).
How do I verify Gary Casaccio's NPI record?
Cross-check NPI 1063593721 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 → Maryann Tadros Chiropractor · Wheaton, IL NPI 1336149681 Meier Clinics of Illinois, P.C. Mental Health Counselor · Wheaton, IL NPI 1083661102 Meier Clinics of Illinois, P.C. Clinical Psychologist · Wheaton, IL NPI 1770523847 Meier Clinics of Illinois, P.C. Clinical Social Worker · Wheaton, IL NPI 1104834613 Barbara Hayes Clinical Social Worker · Wheaton, IL NPI 1083725733 Jane Cairo Clinical Social Worker · Wheaton, IL NPI 1922189687 Juliet Caceres Clinical Psychologist · Wheaton, IL NPI 1477634194 Christine Davis Professional Counselor · Wheaton, IL NPI 1093896656
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-08-18.