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Dr. Julia Sun, M.D.

Rheumatology Physician in Lake Forest, IL · enumerated 2016.

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

National Provider Identifier

1235589912

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Registry record

Entity type Individual (Type 1)
Name Dr. Julia Sun
Credential M.D.
Sex Female
Practice address 800 N Westmoreland Rd Ste 201, Lake Forest, IL, 60045
Phone (847) 388-0603
Fax (312) 694-1155
Enumeration date Jun 14, 2016
Last updated in NPPES Sep 27, 2021

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 125.068435 (IL) Secondary
207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License 036148507 (IL) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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.

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Frequently asked questions

What is the NPI number for Julia Sun?
The National Provider Identifier (NPI) for Julia Sun is 1235589912, a Type 1 (individual) record in the CMS NPPES registry.
Where does Julia Sun practice?
The practice location on file with NPPES is in Lake Forest, IL. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-09-27.