Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Barbara Allegretti, D.C.
Chiropractor in Crystal Lake, IL · enumerated 2014.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1083036693
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Registry record
Entity type Individual (Type 1)
Name Dr. Barbara Allegretti
Credential D.C.
Sex Female
Practice address 1500 Carlemont Dr Ste M, Crystal Lake, IL, 60014
Phone (815) 444-1636
Enumeration date Jan 16, 2014
Last updated in NPPES Jan 16, 2014
Taxonomy & licenses
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders.
About the DC 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
Where does Barbara Allegretti practice?
The practice location on file with NPPES is in Crystal Lake, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Barbara Allegretti?
The National Provider Identifier (NPI) for Barbara Allegretti is 1083036693, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-01-16.