Dr. Yun Ju Kim, MD

  • Oak Brook, IL
  • Gastroenterologist
NPI1841524683PAC ID9234496704
Medicare services, 2024
263
Medicare patients, 2024
196
Part D claims, 2024
316
Publications
4
Hospital affiliations
2
Practice address
2011 York Rd, Oak Brook, IL 60523
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Diag Svcs-Mam Oak Brook-Clinic - HOPD

Acute Care Hospital outpatient department · Oak Brook, Illinois

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Dr. Yun Ju Kim is a gastroenterologist in Oak Brook, Illinois

Dr. Kim practices at Diag Svcs-Mam Oak Brook-Clinic - HOPD in Oak Brook, Illinois.

Dr. Kim's NPI, 1841524683, was assigned on September 27, 2009. Dr. Kim graduated from Chung-Ang University College of Medicine in 2005. Dr. Kim's Indiana license number on file is 01079054A.

NPI and contact details
Medicare PAC ID
9234496704
NPI enumeration date
September 27, 2009
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
47
Medical school graduation
2005

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

Dr. Yun Ju Kim practices at Diag Svcs-Mam Oak Brook-Clinic - HOPD in Oak Brook, Illinois

Dr. Kim's primary practice is Diag Svcs-Mam Oak Brook-Clinic - HOPD, at 2011 York Rd, Oak Brook, IL 60523.

  • Diag Svcs-Mam Oak Brook-Clinic - HOPD
    2011 York Rd, Oak Brook, IL 60523

Source: Dmand AI Affiliation Data

Dr. Yun Ju Kim is affiliated with 5 sites of care and 1 medical group

Dr. Kim's primary practice is Diag Svcs-Mam Oak Brook-Clinic - HOPD in Oak Brook, Illinois. Dr. Kim is also affiliated with Rush University Medical Center. The medical group on file is Rush University Internists. Dmand AI also links Dr. Kim to 1 more hospital, 1 group practice or clinic and 1 ambulatory surgery center, each named with a free account.

See all 6 affiliations for Dr. Kim

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Yun Ju Kim's practice

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

EHR by site
SiteEHR vendor and product
Diag Svcs-Mam Oak Brook-Clinic - HOPDAvailable with a free account
+4 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Yun Ju Kim is one of 771 gastroenterologists in Illinois

Gastroenterology is Dr. Kim's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Kim is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Kim's licenses on file in 4 states: Indiana, Illinois, New York and Maryland.

Specialties and state licenses

  • Gastroenterology, IndianaPrimaryLicense 01079054A · 2017 to 2023 · taxonomy 207RG0100X
  • Illinois license2023 to 2026
  • New York license2014 to 2017
  • Maryland license2012 to 2014

Clinical focus

Dmand AI lists acid reflux, colonoscopy, gastroenteritis, gastrointestinal bleeding, hemorrhoids, intestinal or bowel obstruction, irritable bowel syndrome (IBS) and peptic ulcer among the conditions Dr. Kim treats.

Gastroenterologists near Dr. Kim

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

771gastroenterologists in Illinois
4gastroenterologists in Oak Brook

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

Dr. Yun Ju Kim billed Medicare for 263 services in 2024

CMS data shows 263 Medicare services from Dr. Kim across 6 procedure codes in 2024, for 196 Medicare patients. Medicare paid $26,944 for them.

Medicare services, 2024263
Medicare patients196
Paid by Medicare$26,944
Procedure codes6

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

  • 2023
  • 2024
Office and hospital visits
2023: 3512024: 18248%
Surgery
2023: 1542024: 8147%
Other services
2023: 372024: 0100%

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

  • In an office18269%
  • In a facility8131%

Dr. Kim compared with the Illinois median for gastroenterologists, 2024

  • Dr. Kim
  • Illinois median
Medicare services
263vs 49847% below
Medicare patients
196vs 30736% below
Part D claims
214vs 37042% below

Medians across 757 gastroenterologists in Illinois with Dmand AI profiles that report each measure.

Dr. Kim'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.

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

Dr. Yun Ju Kim treated 196 Medicare patients in 2024, average age 73

CMS counts 196 Medicare patients who saw Dr. Kim in 2024. The largest group is 65 to 74, with 98 patients. 74% of them have high cholesterol, and 70% have high blood pressure. 17% are also on Medicaid. Their average risk score is 1.16, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Kim's median patient age at 56, with 62% women.

Medicare patients, 2024196
Average age73
Average risk score1.16
Also on Medicaid17%

Dr. Kim's Medicare patients by age, 2024

Dr. Kim's Medicare patients by sex, 2024

  • Women13669%
  • Men6031%

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

  1. High cholesterol74%
  2. High blood pressure70%
  3. Arthritis52%
  4. Ischemic heart disease36%
  5. Diabetes29%
  6. Chronic kidney disease25%
  7. Anxiety24%
  8. Mood disorders24%

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

Dr. Kim's patients across all payers

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

Patient panel by age, all payers

Median age 56

Patient panel by sex, all payers

  • Women62%
  • Men37%

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

Dr. Yun Ju Kim wrote 316 Medicare Part D claims in 2024

In 2024, Dr. Kim wrote 316 Medicare Part D claims for 204 patients. 78% of them were for generic drugs. CMS names the drug for 214 of them, across 6 drugs with 11 or more claims each, at $4,647 in total drug cost. In 2023, CMS named 334 claims across 9 drugs.

Part D claims, 2024316
Drugs named by CMS6
Total drug cost$4,647
Part D patients204

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

  • Generic248 claims78%
  • Brand-name68 claims22%

Dr. Kim'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.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 3342024: 21436%

Drugs named by CMS: 6 in 2024, 9 in 2023.

See all prescribing by Dr. Kim

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. Yun Ju Kim ranks in the 81st percentile for colonoscopy in Medicare

Dr. Kim accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Kim as offering telehealth. CMS counts 107 procedures of colonoscopy by Dr. Kim, more than 81% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Where Dr. Kim ranks in Medicare procedure volume

Colonoscopy
81st percentile107 procedures
Upper gastrointestinal (GI) endoscopy for acid reflux
66th percentile57 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Yun Ju Kim has 4 publications on record

Dmand AI links 4 papers to Dr. Kim, published from 2011 to 2019. Dr. Kim's most frequent co-authors are Rohan D. Bhansali, MD, Naveen Gara, MD and David Erwin Kleiner, MD, PhD.

Papers4
Years published2011 to 2019

Dr. Kim's papers by year, 2011 to 2019

Dr. Kim's most frequent co-authors

Recent publications by Dr. Kim

See all 4 publications and co-authors

See who Dr. Kim researches with

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

How network discovery works

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

Dr. Yun Ju Kim received $337 in industry payments from 2019 to 2020

CMS Open Payments shows 17 general payments to Dr. Kim from 9 drug and device companies from 2019 to 2020. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $88.

General payments to Dr. Kim by program year, 2019 to 2020

Companies that paid Dr. Kim the most, 2019 to 2020

Share is of all general payments to this clinician.

See all payments to Dr. Kim

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

Dr. Yun Ju Kim has 3 awards and honors on record

Dmand AI lists 3 awards for Dr. Kim, most recently Award of Excellence based on academic achievement in 2005.

Awards and honors for Dr. Kim

  1. 2005
    • Award of Excellence based on academic achievement
    • Chung-Ang University Valedictorian
    • Dean's list

Source: Dmand AI Professional Profile Data

Dr. Yun Ju Kim graduated from Chung-Ang University College of Medicine

Dr. Kim graduated from Chung-Ang University College of Medicine in 2005.

  1. Medical schoolChung-Ang University College of Medicine
  2. Board certified in gastroenterologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Yun Ju Kim accepts plans from 17 insurance carriers

Dr. Kim is in network with 17 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Cigna. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.

Plan types Dr. Kim accepts, by number of carriers

  1. PPO12
  2. HMO9
  3. Medicare9
  4. POS7
  5. EPO4

Source: Dmand AI Insurance Network Data

Sources for Dr. Yun Ju Kim'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand 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)Doctors and Clinicians Utilization Data (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)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network 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. Yun Ju Kim

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. Yun Ju Kim's NPI number?

Dr. Yun Ju Kim's NPI number is 1841524683. It was assigned on September 27, 2009, and it is active in the NPI Registry.

What kind of doctor is Dr. Yun Ju Kim?

Dr. Yun Ju Kim is a gastroenterologist in Oak Brook, Illinois. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Yun Ju Kim practice?

Dr. Kim practices at 2011 York Rd, Oak Brook, IL 60523. Dr. Kim's primary practice is Diag Svcs-Mam Oak Brook-Clinic - HOPD in Oak Brook, Illinois. Dmand AI also links Dr. Kim to 1 hospital, 1 group practice or clinic and 1 ambulatory surgery center.

What is Dr. Yun Ju Kim's medical license number?

Dr. Kim's Indiana license number on file is 01079054A, one of the licenses on file in 4 states.

Which states has Dr. Yun Ju Kim been licensed in?

Dmand AI has state licenses on file for Dr. Kim in Indiana (2017 to 2023), Illinois (2023 to 2026), New York (2014 to 2017) and Maryland (2012 to 2014).

Which hospitals is Dr. Yun Ju Kim affiliated with?

Dr. Kim is affiliated with Rush University Medical Center. Dmand AI links Dr. Kim to 1 more hospital.

What medical group is Dr. Yun Ju Kim part of?

Dr. Kim is linked to Rush University Internists.

Does Dr. Yun Ju Kim accept Medicare?

Yes. CMS data shows Dr. Kim billed Medicare for 263 services in 2024, and Dr. Kim accepts Medicare assignment.

Does Dr. Yun Ju Kim offer telehealth?

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

How many Medicare patients does Dr. Yun Ju Kim see?

CMS counts 196 Medicare patients who saw Dr. Kim in 2024, with an average age of 73.

Show 9 more questionsShow fewer questions

Is Dr. Yun Ju Kim board certified?

Yes. Dr. Kim is board certified in gastroenterology by the American Board of Internal Medicine.

What services does Dr. Yun Ju Kim bill to Medicare?

In 2024, Dr. Kim's most billed Medicare services were office visit, new patient (99203), office visit, established patient (99214) and office visit, new patient (99204).

Where did Dr. Yun Ju Kim go to medical school?

Dr. Kim graduated from Chung-Ang University College of Medicine in 2005.

What drugs does Dr. Yun Ju Kim prescribe most?

In 2024 Medicare Part D data, Dr. Kim's most prescribed drugs by claims were Gavilyte-G, Pantoprazole Sodium and Omeprazole.

Has Dr. Yun Ju Kim received payments from drug or device companies?

CMS Open Payments shows $337 in general payments to Dr. Kim from 9 companies from 2019 to 2020. The largest total came from Abbvie Inc.

How long has Dr. Yun Ju Kim been practicing?

Dr. Kim graduated from medical school in 2005, 21 years ago.

Does Dr. Yun Ju Kim do research?

Dmand AI links 4 publications to Dr. Kim, published from 2011 to 2019.

Who does Dr. Yun Ju Kim publish with?

Dr. Kim's most frequent co-authors are Rohan D. Bhansali, MD (1 shared paper), Naveen Gara, MD (1 shared paper) and David Erwin Kleiner, MD, PhD (1 shared paper).

What insurance does Dr. Yun Ju Kim accept?

Dr. Kim is in network with 17 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Cigna. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.

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