Dr. John Yah-Sung Kim, MD
- Medicare services, 2024
- 11
- Medicare patients, 2024
- 23
- Part D claims, 2024
- 31
- MIPS score, 2024
- 95
- Hospital affiliations
- 1
- Practice address
- 675 N St Clair St, Chicago, IL 60611
- Practice phone
- Call (312) 695-0646
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Northwestern Medical Group
Chicago, Illinois
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Dr. John Yah-Sung Kim is a plastic and reconstructive surgery physician in Chicago, Illinois
Dr. Kim practices at Northwestern Medical Group in Chicago, Illinois.
Dr. Kim's NPI, 1932130135, was assigned on July 5, 2006. Dr. Kim holds Illinois license 036111169.
- NPI
- 1932130135NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4688643810
- NPI enumeration date
- July 5, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (312) 695-0646
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Yah-Sung Kim practices at Northwestern Medical Group in Chicago, Illinois
Dr. Kim's primary practice is Northwestern Medical Group, at 675 N St Clair St, Chicago, IL 60611 in Cook County. The practice phone is (312) 695-0646.
- Northwestern Medical Group675 N St Clair St, Chicago, IL 60611 · Cook CountyPhone(312) 695-0646
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John Yah-Sung Kim is affiliated with 3 sites of care and 1 medical group
Dr. Kim's primary practice is Northwestern Medical Group in Chicago, Illinois. Dr. Kim is also affiliated with Northwestern Memorial Hospital. The medical group on file is Northwestern Medical Faculty Foundation. Dmand AI also links Dr. Kim to 1 more group practice or clinic, 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. John Yah-Sung Kim's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kim practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwestern Medical Group | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Yah-Sung Kim is one of 109 plastics and reconstructive surgery physicians in Illinois
Plastic and reconstructive surgery is Dr. Kim's primary specialty in the NPI Registry, under taxonomy code 2086S0122X. Dr. Kim is licensed in Illinois.
Specialties and state licenses
- Plastic and reconstructive surgery, IllinoisPrimary
Plastics and reconstructive surgery physicians near Dr. Kim
Counts of plastics and reconstructive surgery physicians 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. John Yah-Sung Kim billed Medicare for 11 services in 2024
CMS data shows 11 Medicare services from Dr. Kim across 1 procedure code in 2024, all of them office visits, for 23 Medicare patients. Medicare paid $681 for them. Every service was in an office.
Dr. Kim's Medicare services by type, 2022 to 2024
- 2022
- 2024
- Office and hospital visits
- 2022: 582024: 1181%
Dr. Kim compared with the Illinois median for plastics and reconstructive surgery physicians, 2024
- Dr. Kim
- Illinois median
- Medicare services
- 11vs 5480% below
- Medicare patients
- 23vs 5256% below
- Part D claims
- 11vs 2861% below
Medians across 86 plastics and reconstructive surgery physicians 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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Kim and other plastics and reconstructive surgery physicians in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Yah-Sung Kim treated 23 Medicare patients in 2024, average age 75
CMS counts 23 Medicare patients who saw Dr. Kim in 2024. 70% of them have high blood pressure, and 70% have high cholesterol. Their average risk score is 0.67, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Kim's median patient age at 55, with 87% women.
Chronic conditions among Dr. Kim's Medicare patients, 2024
- High blood pressure70%
- High cholesterol70%
- Arthritis52%
- Cancer48%
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 55
Patient panel by sex, all payers
- Women87%
- Men11%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Yah-Sung Kim wrote 31 Medicare Part D claims in 2024
In 2024, Dr. Kim wrote 31 Medicare Part D claims for 17 patients. 100% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $65 in total drug cost. In 2019, CMS named 43 claims across 3 drugs.
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.
Drug classes CMS tracks in Dr. Kim's Part D claims, 2024
- Antibiotics58%18 of 31 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, 2019 to 2024
- 2019
- 2024
- Claims for drugs CMS names
- 2019: 432024: 1174%
Drugs named by CMS: 1 in 2024, 3 in 2019.
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. John Yah-Sung Kim 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. Kim for performance year 2024, reported through an alternative payment model (APM). Dr. Kim accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Kim'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.
Mastectomy: 1 to 10 procedures (CMS shows small counts as a range)
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. John Yah-Sung Kim received $7,480,224 in industry payments from 2016 to 2025
CMS Open Payments shows 205 general payments to Dr. Kim from 29 drug and device companies from 2016 to 2025. Acquisitions make up the largest share, 97% of the total. Surgical Innovation Associates, Inc. paid the most, $7,265,357.
General payments to Dr. Kim by program year, 2016 to 2025
General payments to Dr. Kim by kind, 2016 to 2025
- Acquisitions$7,265,35797%
- Consulting fees$132,3032%
- Honoraria$63,4801%
- Food and beverage$9,3960%
- Other$9,6880%
Companies that paid Dr. Kim the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. John Yah-Sung Kim's profile data
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. John Yah-Sung Kim
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What is Dr. John Yah-Sung Kim's NPI number?
Dr. John Yah-Sung Kim's NPI number is 1932130135. It was assigned on July 5, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Yah-Sung Kim?
Dr. John Yah-Sung Kim is a plastic and reconstructive surgery physician in Chicago, Illinois. The primary specialty in the NPI Registry is Plastic and Reconstructive Surgery Physician (taxonomy code 2086S0122X).
Where does Dr. John Yah-Sung Kim practice?
Dr. Kim practices at 675 N St Clair St, Chicago, IL 60611. Dr. Kim's primary practice is Northwestern Medical Group in Chicago, Illinois. Dmand AI also links Dr. Kim to 1 group practice or clinic.
What is Dr. John Yah-Sung Kim's office phone number?
The practice phone on file for Dr. Kim is (312) 695-0646.
What is Dr. John Yah-Sung Kim's medical license number?
Dr. Kim holds Illinois license 036111169.
Which hospitals is Dr. John Yah-Sung Kim affiliated with?
Dr. Kim is affiliated with Northwestern Memorial Hospital.
What medical group is Dr. John Yah-Sung Kim part of?
Dr. Kim is linked to Northwestern Medical Faculty Foundation.
Does Dr. John Yah-Sung Kim accept Medicare?
Yes. CMS data shows Dr. Kim billed Medicare for 11 services in 2024, and Dr. Kim accepts Medicare assignment.
What is Dr. John Yah-Sung Kim's MIPS score?
Dr. Kim's MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. John Yah-Sung Kim see?
CMS counts 23 Medicare patients who saw Dr. Kim in 2024, with an average age of 75.
Show 4 more questionsShow fewer questions
What services does Dr. John Yah-Sung Kim bill to Medicare?
In 2024, Dr. Kim's most billed Medicare services were office visit, new patient (99202).
What drugs does Dr. John Yah-Sung Kim prescribe most?
In 2024 Medicare Part D data, Dr. Kim's most prescribed drugs by claims were Cephalexin.
Has Dr. John Yah-Sung Kim received payments from drug or device companies?
CMS Open Payments shows $7,480,224 in general payments to Dr. Kim from 29 companies from 2016 to 2025. The largest total came from Surgical Innovation Associates, Inc.
How long has Dr. John Yah-Sung Kim been practicing?
Dr. Kim graduated from medical school in 1997, 29 years ago.
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