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Natalie Joan Sefton Choi, MD

Family Medicine Physician in Geneva, IL · enumerated 2006.

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

National Provider Identifier

1154375582

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Registry record

Entity type Individual (Type 1)
Name Natalie Joan Sefton Choi
Credential MD
Sex Female
Practice address 298 Randall Rd, Geneva, IL, 60134
Phone (630) 938-3300
Fax (630) 938-3310
Enumeration date May 20, 2006
Last updated in NPPES Jun 4, 2018

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License ME101862 (FL) Secondary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 2005013764 (MO) Secondary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 036123535 (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
F400305908 Other IL MEDICARE INDIVIDUAL
200867703 Medicaid MO -
920540 Other IL MEDICARE PTAN GROUP
036123535 Medicaid IL -
F400305908 Other IL MEDICARE PTAN INDIVIDUAL
920540 Other IL MEDICARE GROUP

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

What is the NPI number for Natalie Choi?
The National Provider Identifier (NPI) for Natalie Choi is 1154375582, a Type 1 (individual) record in the CMS NPPES registry.
Where does Natalie Choi practice?
The practice location on file with NPPES is in Geneva, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-06-04.