Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Barbara Guido, APN-CNP
Nurse Practitioner in Chicago, IL · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1780784611
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Registry record
Entity type Individual (Type 1)
Name Barbara Guido
Credential APN-CNP
Sex Female
Practice address 250 E Superior St Ste 4-420, Chicago, IL, 60611
Phone (312) 472-4720
Fax (312) 472-4565
Enumeration date Sep 22, 2006
Last updated in NPPES Mar 30, 2018
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209-001735 (IL) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 041198627 | Other | IL | STATE LICENSE |
| 209001735 | Other | IL | STATE LICENSE |
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 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.
What specialty is Barbara Guido?
Barbara Guido is registered in NPPES with the primary taxonomy of Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-30.