NPI Portal NPI Lookup & Verification

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Dr. Carolyn Jacob, MD

Dermatology Physician in Chicago, IL · enumerated 2006 · practices at Chicago Cosmetic Surgery and Dermatology Sc.

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

National Provider Identifier

1265498083

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Registry record

Entity type Individual (Type 1)
Name Dr. Carolyn Jacob
Credential MD
Sex Female
Practice address 515 N State St Ste 900, Chicago, IL, 60654
Fax (312) 245-9964
Enumeration date Apr 21, 2006
Last updated in NPPES Feb 5, 2020

Taxonomy & licenses

207NS0135X Procedural Dermatology Physician Allopathic & Osteopathic Physicians · License 036102098 (IL) Secondary
207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 036102098 (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
036102098 Medicaid IL -

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.

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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 Carolyn Jacob?
Carolyn Jacob is registered in NPPES with the primary taxonomy of Dermatology Physician. 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 2020-02-05.