Dr. Julia Lailai Sun, MD

  • Grayslake, IL
  • Rheumatologist
NPI1235589912PAC ID2264724657
Medicare services, 2024
17,097
Medicare patients, 2024
452
Part D claims, 2024
678
Publications
2
MIPS score, 2024
95
Practice address
1475 E Belvidere Rd, Grayslake, IL 60030
Practice phone
Call (219) 789-9176
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Lake Forest Endoscopy Center LLC

Grayslake, Illinois

See all 7 affiliations

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Dr. Julia Lailai Sun is a rheumatologist in Grayslake, Illinois

Dr. Sun practices at Lake Forest Endoscopy Center LLC in Grayslake, Illinois.

Dr. Sun's NPI, 1235589912, was assigned on June 14, 2016. Dr. Sun graduated from Duke University School of Medicine in 2016. Dr. Sun holds Illinois license 036148507.

NPI and contact details
Medicare PAC ID
2264724657
NPI enumeration date
June 14, 2016
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(219) 789-9176
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
36
Medical school graduation
2016

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Julia Lailai Sun practices at Lake Forest Endoscopy Center LLC in Grayslake, Illinois

Dr. Sun's primary practice is Lake Forest Endoscopy Center LLC, at 1475 E Belvidere Rd, Grayslake, IL 60030 in Lake County. The practice phone is (219) 789-9176.

  • Lake Forest Endoscopy Center LLC
    1475 E Belvidere Rd, Grayslake, IL 60030 · Lake CountyPhone(219) 789-9176

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Julia Lailai Sun is affiliated with 6 sites of care and 1 medical group

Dr. Sun's primary practice is Lake Forest Endoscopy Center LLC in Grayslake, Illinois. Dr. Sun is also affiliated with Northwestern Medicine Central DuPage Hospital. The medical group on file is Northwestern Medical Faculty Foundation. Dmand AI also links Dr. Sun to 3 more hospitals and 1 group practice or clinic, each named with a free account.

See all 7 affiliations for Dr. Sun

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Julia Lailai Sun's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sun practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Lake Forest Endoscopy Center LLCAvailable with a free account
+5 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Julia Lailai Sun is one of 285 rheumatologists in Illinois

Rheumatology is Dr. Sun's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Sun is licensed in Illinois.

Specialties and state licenses

  • Rheumatology, IllinoisPrimaryLicense 125.068435 · taxonomy 207RR0500X

Rheumatologists near Dr. Sun

Counts of rheumatologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Julia Lailai Sun billed Medicare for 17,097 services in 2024

CMS data shows 17,097 Medicare services from Dr. Sun across 21 procedure codes in 2024, for 452 Medicare patients. Medicare paid $453,045 for them.

Medicare services, 202417,097
Medicare patients452
Paid by Medicare$453,045
Procedure codes21

Dr. Sun's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Drugs given in the office
2023: 30,9872024: 15,82249%
Tests and treatments
2023: 8682024: 72816%
Office and hospital visits
2023: 3732024: 3701%
Surgery
2023: 1682024: 1775%

Where Dr. Sun's Medicare services took place, 2024

  • In an office17,083100%
  • In a facility140%

Dr. Sun compared with the Illinois median for rheumatologists, 2024

  • Dr. Sun
  • Illinois median
Medicare services
17,097vs 98717.3 times
Medicare patients
452vs 26273% above
Part D claims
521vs 1,07752% below

Medians across 290 rheumatologists in Illinois with Dmand AI profiles that report each measure.

Dr. Sun's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Sun

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Julia Lailai Sun treated 452 Medicare patients in 2024, average age 74

CMS counts 452 Medicare patients who saw Dr. Sun in 2024. The largest group is 75 to 84, with 188 patients. 75% of them have high cholesterol, and 72% have arthritis. 12% are also on Medicaid. Their average risk score is 1.54, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Sun's median patient age at 67, with 80% women.

Medicare patients, 2024452
Average age74
Average risk score1.54
Also on Medicaid12%

Dr. Sun's Medicare patients by age, 2024

Dr. Sun's Medicare patients by sex, 2024

  • Women33474%
  • Men11826%

Chronic conditions among Dr. Sun's Medicare patients, 2024

  1. High cholesterol75%
  2. Arthritis72%
  3. High blood pressure69%
  4. Osteoporosis50%
  5. Ischemic heart disease28%
  6. Mood disorders27%
  7. Diabetes26%
  8. Anxiety25%

Share of Medicare patients with each condition. A patient can have several.

Dr. Sun's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 67

Patient panel by sex, all payers

  • Women80%
  • Men20%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Julia Lailai Sun wrote 678 Medicare Part D claims in 2024

In 2024, Dr. Sun wrote 678 Medicare Part D claims for 163 patients. 86% of them were for generic drugs. CMS names the drug for 521 of them, across 16 drugs with 11 or more claims each, at $402,324 in total drug cost. In 2023, CMS named 516 claims across 13 drugs.

Part D claims, 2024678
Drugs named by CMS16
Total drug cost$402,324
Part D patients163

Dr. Sun's Part D claims by kind of drug, 2024

  • Generic584 claims86%
  • Brand-name94 claims14%

Dr. Sun's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Sun's Part D claims, 2024

  • Opioids12%83 of 678 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 5162024: 5211%

Drugs named by CMS: 16 in 2024, 13 in 2023.

See all prescribing by Dr. Sun

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Julia Lailai Sun scored 95 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Sun for performance year 2024, reported through an alternative payment model (APM). Dr. Sun accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Sun as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Sun's MIPS scores, performance year 2024

  • 95of 100Final score
  • 83of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Julia Lailai Sun has 2 publications on record

Dmand AI links 2 papers to Dr. Sun in 2017. Dr. Sun's most frequent co-authors are Nabil Alzaeim, Apinya Lertratanakul, MD and David D. McPherson, MD.

Papers2

Dr. Sun's most frequent co-authors

Recent publications by Dr. Sun

See all 2 publications and co-authors

See who Dr. Sun researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Sun works with, so you can find a warm path to the right rheumatologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Julia Lailai Sun received $80,410 in industry payments from 2019 to 2023

CMS Open Payments shows 8 general payments to Dr. Sun from 4 drug and device companies from 2019 to 2023. Grants make up the largest share, 99% of the total. Pfizer Inc. paid the most, $80,000.

General payments to Dr. Sun by program year, 2019 to 2023

General payments to Dr. Sun by kind, 2019 to 2023

$80.4Kin total
  • Grants$80,00099%
  • Food and beverage$3570%
  • Education$530%

Companies that paid Dr. Sun the most, 2019 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. Sun

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Julia Lailai Sun graduated from Duke University School of Medicine

Dr. Sun graduated from Duke University School of Medicine in 2016.

  1. Medical schoolDuke University School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Julia Lailai Sun's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Julia Lailai Sun

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Julia Lailai Sun's NPI number?

Dr. Julia Lailai Sun's NPI number is 1235589912. It was assigned on June 14, 2016, and it is active in the NPI Registry.

What kind of doctor is Dr. Julia Lailai Sun?

Dr. Julia Lailai Sun is a rheumatologist in Grayslake, Illinois. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).

Where does Dr. Julia Lailai Sun practice?

Dr. Sun practices at 1475 E Belvidere Rd, Grayslake, IL 60030. Dr. Sun's primary practice is Lake Forest Endoscopy Center LLC in Grayslake, Illinois. Dmand AI also links Dr. Sun to 3 hospitals and 1 group practice or clinic.

What is Dr. Julia Lailai Sun's office phone number?

The practice phone on file for Dr. Sun is (219) 789-9176.

What is Dr. Julia Lailai Sun's medical license number?

Dr. Sun holds Illinois license 036148507.

Which hospitals is Dr. Julia Lailai Sun affiliated with?

Dr. Sun is affiliated with Northwestern Medicine Central DuPage Hospital. Dmand AI links Dr. Sun to 3 more hospitals.

What medical group is Dr. Julia Lailai Sun part of?

Dr. Sun is linked to Northwestern Medical Faculty Foundation.

Does Dr. Julia Lailai Sun accept Medicare?

Yes. CMS data shows Dr. Sun billed Medicare for 17,097 services in 2024, and Dr. Sun accepts Medicare assignment.

Does Dr. Julia Lailai Sun offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Sun as offering telehealth services.

What is Dr. Julia Lailai Sun's MIPS score?

Dr. Sun's MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).

Show 8 more questionsShow fewer questions

How many Medicare patients does Dr. Julia Lailai Sun see?

CMS counts 452 Medicare patients who saw Dr. Sun in 2024, with an average age of 74.

What services does Dr. Julia Lailai Sun bill to Medicare?

In 2024, Dr. Sun's most billed Medicare services were injected or infused drug (J0897), injected or infused drug (J0129) and injected or infused drug (J1569).

Where did Dr. Julia Lailai Sun go to medical school?

Dr. Sun graduated from Duke University School of Medicine in 2016.

What drugs does Dr. Julia Lailai Sun prescribe most?

In 2024 Medicare Part D data, Dr. Sun's most prescribed drugs by claims were Prednisone, Hydroxychloroquine Sulfate and Methotrexate.

Has Dr. Julia Lailai Sun received payments from drug or device companies?

CMS Open Payments shows $80,410 in general payments to Dr. Sun from 4 companies from 2019 to 2023. The largest total came from Pfizer Inc.

How long has Dr. Julia Lailai Sun been practicing?

Dr. Sun graduated from medical school in 2016, 10 years ago.

Does Dr. Julia Lailai Sun do research?

Dmand AI links 2 publications to Dr. Sun.

Who does Dr. Julia Lailai Sun publish with?

Dr. Sun's most frequent co-authors are Nabil Alzaeim (1 shared paper), Apinya Lertratanakul, MD (1 shared paper) and David D. McPherson, MD (1 shared paper).

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