DR. JULIA SUN M.D.
NPI 1235589912
Internal Medicine - Rheumatology in Lake Forest, IL

Active since June 14, 2016PECOS EnrolledAccepts Medicare Assignment
94.1/100
CMS Quality Rating
800 N WESTMORELAND RD STE 201, LAKE FOREST, IL 60045(847) 388-0603(312) 694-1155 Get Directions Write a Review

NPPES record last updated: September 27, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Sep 27, 2021, Jun 14, 2016 (2 updates tracked since 2016).

About Dr. Julia Sun M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JULIA SUN M.D. (NPI 1235589912) is an individual rheumatology provider in Lake Forest, Illinois, licensed in Illinois (036148507) and active in the NPI registry since June 2016. She is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Mchenry, and maintains a secondary practice location in Chicago.

NPPES Registry Identity

NPI1235589912
Entity TypeIndividualFemale
Primary Taxonomy207RR0500X
Provider Legal NameDR. JULIA SUNCredential: M.D.
Location Address800 N WESTMORELAND RD STE 201Lake Forest, IL 60045-1687
Mailing Address800 N Westmoreland Rd Ste 201Lake Forest, IL 60045-1687 · (847) 388-0603 · Fax (312) 694-1155
Fax(312) 694-1155
Sole ProprietorNo
Medical School CMSDuke University School Of MedicineGraduated 2016
Enumeration DateJune 14, 2016
Last NPPES UpdateSeptember 27, 20212 updates tracked since enumeration
NPPES CertifiedSeptember 27, 2021
NPI 1235589912 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License Licensed in IL · 036148507
Definition

An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.

Also ListedInternal MedicineTaxonomy 207R00000X · License 125.068435 (IL)
800 N WESTMORELAND RD STE 201, Lake Forest, IL 60045

Secondary Practice Location 1

Location 15841 S Maryland Ave, M/C 7082Chicago, IL 60637-1447 · Phone (773) 795-0232 · Fax (773) 702-2230

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Julia Sun M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2264724657
PECOS Enrollment IDI20210825003849
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 19

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Injection, denosumab, 1 mg J0897
Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.
6,720 services98 patients
Injection, abatacept, 10 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered) J0129
Abatacept is a medication administered via injection under a doctor's supervision. It's used to treat conditions like rheumatoid arthritis by moderating the immune system. This code applies when the doctor administers the drug, not for self-administration.
4,425 services20 patients
Injection, immune globulin, (gammagard liquid), non-lyophilized, (e.g., liquid), 500 mg J1569
The Gammagard Liquid injection is a type of immune globulin therapy. It's used to boost your body's immune system, helping it fight off infections. The therapy involves injecting a liquid form of proteins, collected from healthy donors, into your body. This is a 500mg dose.
3,130 services12 patients
Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
254 services138 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
155 services89 patients
Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 96365
This is a procedure where a medical professional inserts a small tube into your vein to deliver medication, nutrients, or fluids directly into your bloodstream. This can be for treatment, prevention, or diagnosis. The process typically takes less than an hour.
155 services74 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Northwestern Medicine Mchenry

Acute Care Hospitals · Mchenry, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140116
Location4201 Medical Center DriveMchenry, IL 60050 · Mc Henry County
Emergency services Birthing friendly

Northwestern Lake Forest Hospital

Acute Care Hospitals · Lake Forest, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140130
Location1000 N Westmoreland RoadLake Forest, IL 60045 · Lake County
Emergency services Birthing friendly

Northwestern Medicine Central Dupage Hospital

Acute Care Hospitals · Winfield, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140242
Location25 North Winfield RoadWinfield, IL 60190 · Du Page County
Emergency services Birthing friendly

Northwestern Memorial Hospital

Acute Care Hospitals · Chicago, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140281
Location251 E Huron StChicago, IL 60611 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60045 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$137.43 typical visit price
range $59.81 – $181.38
Typical copayment $34.35 (range $14.95 – $45.34)
Most-billed visit code 99204
Established Patient
$105.07 typical visit price
range $19.15 – $147.12
Typical copayment $26.26 (range $4.78 – $36.78)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

94.1/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality82.59
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 14

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Dietitian, Registered
800 N WESTMORELAND RD STE 201
LAKE FOREST, IL 60045
Social Worker (Clinical)
800 N WESTMORELAND RD STE 201
LAKE FOREST, IL 60045
Physician Assistant
800 N WESTMORELAND RD STE 201
LAKE FOREST, IL 60045
Psychiatry & Neurology (Psychiatry)
800 N WESTMORELAND RD STE 201
LAKE FOREST, IL 60045
Internal Medicine (Rheumatology)
800 N WESTMORELAND RD STE 201
LAKE FOREST, IL 60045
Internal Medicine
800 N WESTMORELAND RD STE 201
LAKE FOREST, IL 60045
Physician Assistant (Medical)
800 N WESTMORELAND RD STE 201
LAKE FOREST, IL 60045
Social Worker (Clinical)
800 N WESTMORELAND RD STE 201
LAKE FOREST, IL 60045

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Julia Sun's NPI number?

The NPI number for Julia Sun is 1235589912. It was assigned to this individual provider in the NPPES registry on June 14, 2016.

Where is Julia Sun located?

Julia Sun practices at 800 N Westmoreland Rd Ste 201, Lake Forest, IL 60045. The listed phone number is (847) 388-0603.

What is Julia Sun's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Julia Sun enrolled in Medicare?

Yes. Julia Sun is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Julia Sun affiliated with any hospitals?

According to CMS data, Julia Sun is affiliated with Northwestern Medicine Mchenry, Northwestern Lake Forest Hospital, Northwestern Medicine Central Dupage Hospital and Northwestern Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Julia Sun was last updated on September 27, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.