Dr. David Youngsik Jun, MD
- Medicare services, 2024
- 970
- Medicare patients, 2024
- 252
- Part D claims, 2024
- 9,562
- Hospital affiliations
- 3
- Industry payments
- $17
- Practice address
- 3445 N Central Ave, Chicago, IL 60634
- Practice phone
- Call (773) 205-0800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Metropolitan Healthcare Partners
Chicago, Illinois
Find Dr. Jun's professional email, personal email and mobile number
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Dr. David Youngsik Jun is an internist in Chicago, Illinois
Dr. Jun practices at Metropolitan Healthcare Partners in Chicago, Illinois.
Dr. Jun's NPI, 1093735144, was assigned on July 20, 2006. Dr. Jun holds Illinois license 036078305.
- NPI
- 1093735144NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1052217239
- NPI enumeration date
- July 20, 2006
- NPI status
- Active
- Practice phone
- (773) 205-0800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 74
- Medical school graduation
- 1978
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. David Youngsik Jun practices at Metropolitan Healthcare Partners in Chicago, Illinois
Dr. Jun's primary practice is Metropolitan Healthcare Partners, at 3445 N Central Ave, Chicago, IL 60634 in Cook County. The practice phone is (773) 205-0800.
- Metropolitan Healthcare Partners3445 N Central Ave, Chicago, IL 60634 · Cook CountyPhone(773) 205-0800
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David Youngsik Jun is affiliated with 8 sites of care and 1 medical group
Dr. Jun's primary practice is Metropolitan Healthcare Partners in Chicago, Illinois. Dr. Jun is also affiliated with Northwestern Medicine Central DuPage Hospital. The medical group on file is Metropolitan Healthcare Partners. Dmand AI also links Dr. Jun to 2 more hospitals, 2 home health agencies, 1 physician office and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. David Youngsik Jun's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Jun practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Metropolitan Healthcare Partners | Available with a free account |
| +7 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David Youngsik Jun is one of 5,652 internists in Illinois
Internal medicine is Dr. Jun's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Jun is licensed in Illinois.
Specialties and state licenses
- Internal medicine, IllinoisPrimary
Internists near Dr. Jun
Counts of internists 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. David Youngsik Jun billed Medicare for 970 services in 2024
CMS data shows 970 Medicare services from Dr. Jun across 9 procedure codes in 2024, for 252 Medicare patients. Medicare paid $79,055 for them. Every service was in an office.
Dr. Jun's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6642024: 56215%
- Other services
- 2023: 3202024: 27713%
- Tests and treatments
- 2023: 1882024: 13130%
- Surgery
- 2023: 222024: 0100%
Dr. Jun compared with the Illinois median for internists, 2024
- Dr. Jun
- Illinois median
- Medicare services
- 970vs 56671% above
- Medicare patients
- 252vs 20821% above
- Part D claims
- 8,935vs 28431.5 times
Medians across 5,192 internists in Illinois with Dmand AI profiles that report each measure.
Dr. Jun'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. David Youngsik Jun treated 252 Medicare patients in 2024, average age 78
CMS counts 252 Medicare patients who saw Dr. Jun in 2024. The largest group is 75 to 84, with 112 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 60% are also on Medicaid. Their average risk score is 1.15, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Jun's median patient age at 72, with 50% women.
Dr. Jun's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Jun's Medicare patients by sex, 2024
- Women14056%
- Men11244%
Chronic conditions among Dr. Jun's Medicare patients, 2024
- High blood pressure75%
- High cholesterol74%
- Diabetes41%
- Arthritis38%
- Osteoporosis29%
- Chronic kidney disease23%
- Cancer13%
- Ischemic heart disease13%
Share of Medicare patients with each condition. A patient can have several.
Dr. Jun's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women50%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David Youngsik Jun wrote 9,562 Medicare Part D claims in 2024
In 2024, Dr. Jun wrote 9,562 Medicare Part D claims for 782 patients. 90% of them were for generic drugs. CMS names the drug for 8,935 of them, across 110 drugs with 11 or more claims each, at $753,597 in total drug cost. In 2023, CMS named 8,446 claims across 111 drugs.
Dr. Jun's Part D claims by kind of drug, 2024
- Generic8,569 claims90%
- Brand-name923 claims10%
- Other70 claims1%
Dr. Jun'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. Jun's Part D claims, 2024
- Opioids0%23 of 9,562 claims
- Antibiotics1%136 of 9,562 claims
- Antipsychotics, patients 65 and over0%12 of 9,562 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: 8,4462024: 8,9356%
Drugs named by CMS: 110 in 2024, 111 in 2023.
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
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Dr. David Youngsik Jun received $17 in industry payments in 2024
CMS Open Payments shows 1 general payment to Dr. Jun from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $17.
Companies that paid Dr. Jun the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. David Youngsik Jun's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. David Youngsik Jun
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. David Youngsik Jun's NPI number?
Dr. David Youngsik Jun's NPI number is 1093735144. It was assigned on July 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David Youngsik Jun?
Dr. David Youngsik Jun is an internist in Chicago, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. David Youngsik Jun practice?
Dr. Jun practices at 3445 N Central Ave, Chicago, IL 60634. Dr. Jun's primary practice is Metropolitan Healthcare Partners in Chicago, Illinois. Dmand AI also links Dr. Jun to 2 hospitals, 2 home health agencies, 1 physician office and 1 group practice or clinic.
What is Dr. David Youngsik Jun's office phone number?
The practice phone on file for Dr. Jun is (773) 205-0800.
What is Dr. David Youngsik Jun's medical license number?
Dr. Jun holds Illinois license 036078305.
Which hospitals is Dr. David Youngsik Jun affiliated with?
Dr. Jun is affiliated with Northwestern Medicine Central DuPage Hospital. Dmand AI links Dr. Jun to 2 more hospitals.
What medical group is Dr. David Youngsik Jun part of?
Dr. Jun is linked to Metropolitan Healthcare Partners.
Does Dr. David Youngsik Jun accept Medicare?
Yes. CMS data shows Dr. Jun billed Medicare for 970 services in 2024.
How many Medicare patients does Dr. David Youngsik Jun see?
CMS counts 252 Medicare patients who saw Dr. Jun in 2024, with an average age of 78.
What services does Dr. David Youngsik Jun bill to Medicare?
In 2024, Dr. Jun's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and medicare service (G0008).
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What drugs does Dr. David Youngsik Jun prescribe most?
In 2024 Medicare Part D data, Dr. Jun's most prescribed drugs by claims were Atorvastatin Calcium, Metformin HCl and Losartan-Hydrochlorothiazide.
Has Dr. David Youngsik Jun received payments from drug or device companies?
CMS Open Payments shows $17 in general payments to Dr. Jun from 1 company from 2024 to 2024. The largest total came from Amgen Inc.
How long has Dr. David Youngsik Jun been practicing?
Dr. Jun graduated from medical school in 1978, 48 years ago.
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