Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Anna Bida-Dudun, M.D.

Obstetrics & Gynecology Physician in Dixon, IL · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1669444782

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Registry record

Entity type Individual (Type 1)

Name Dr. Anna Bida-Dudun

Credential M.D.

Sex Female

Practice address 215 E. 1st Street, Suite 215, Ksb Medical Group, Dixon, IL, 61021

Phone (815) 285-5423

Fax (815) 285-5426

Enumeration date Feb 2, 2006

Last updated in NPPES Aug 21, 2018

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 4301060145 (MI) Secondary

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 036-136200 (IL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
036136200	Medicaid	IL	-
F400173706	Other	IL	MEDICARE

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Anna Bida-Dudun?

Anna Bida-Dudun is registered in NPPES with the primary taxonomy of Obstetrics & Gynecology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-08-21.