Dr. Sang Young Chyung, MD
- Medicare services, 2024
- 6,885
- Medicare patients, 2024
- 50
- Part D claims, 2024
- 357
- Industry payments
- $385
- State license
- 1
- Practice address
- 901 Macarthur Blvd, Munster, IN 46321
- Practice phone
- Call (219) 836-1600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Community Hospital
Munster, Indiana
Find Dr. Chyung's professional email, personal email and mobile number
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Dr. Sang Young Chyung is an allergist and immunologist in Munster, Indiana
Dr. Chyung practices at Community Hospital in Munster, Indiana.
Dr. Chyung's NPI, 1659341311, was assigned on January 25, 2006. Dr. Chyung holds Indiana license 01039108A.
- NPI
- 1659341311NPI Registry (opens in a new tab)
- NPI enumeration date
- January 25, 2006
- NPI status
- Active
- Practice phone
- (219) 836-1600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Sang Young Chyung practices at Community Hospital in Munster, Indiana
Dr. Chyung's primary practice is Community Hospital, at 901 Macarthur Blvd, Munster, IN 46321 in Lake County. The practice phone is (219) 836-1600.
- Community Hospital901 Macarthur Blvd, Munster, IN 46321 · Lake CountyPhone(219) 836-1600
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Sang Young Chyung is affiliated with 1 site of care
Dr. Chyung's primary practice is Community Hospital in Munster, Indiana.
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Sang Young Chyung's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chyung practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Community Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Sang Young Chyung is one of 43 allergists and immunologists in Indiana
Allergy and immunology is Dr. Chyung's primary specialty in the NPI Registry, under taxonomy code 207K00000X. Dr. Chyung is licensed in Indiana.
Specialties and state licenses
- Allergy and immunology, IndianaPrimary
Allergists and immunologists near Dr. Chyung
Counts of allergists and immunologists 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. Sang Young Chyung billed Medicare for 6,885 services in 2024
CMS data shows 6,885 Medicare services from Dr. Chyung across 6 procedure codes in 2024, for 50 Medicare patients. Medicare paid $97,019 for them. Every service was in an office.
Dr. Chyung's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 7,9872024: 6,58118%
- Office and hospital visits
- 2023: 3272024: 3047%
Dr. Chyung compared with the Indiana median for allergists and immunologists, 2024
- Dr. Chyung
- Indiana median
- Medicare services
- 6,885vs 3,1582.2 times
- Medicare patients
- 50vs 12961% below
- Part D claims
- 257vs 49048% below
Medians across 44 allergists and immunologists in Indiana with Dmand AI profiles that report each measure.
Dr. Chyung'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.
Need commercial claims for Dr. Chyung?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chyung and other allergists and immunologists in Indiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sang Young Chyung treated 50 Medicare patients in 2024, average age 75
CMS counts 50 Medicare patients who saw Dr. Chyung in 2024. The largest group is 75 to 84, with 25 patients. 75% of them have asthma, and 75% have high blood pressure. Their average risk score is 0.88, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chyung's median patient age at 64, with 61% women.
Dr. Chyung's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chyung's Medicare patients by sex, 2024
- Women3570%
- Men1530%
Chronic conditions among Dr. Chyung's Medicare patients, 2024
- Asthma75%
- High blood pressure75%
- High cholesterol75%
- Arthritis50%
- Ischemic heart disease34%
- Anxiety24%
- Diabetes24%
- Osteoporosis22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chyung's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women61%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Sang Young Chyung wrote 357 Medicare Part D claims in 2024
In 2024, Dr. Chyung wrote 357 Medicare Part D claims for 56 patients. 86% of them were for generic drugs. CMS names the drug for 257 of them, across 10 drugs with 11 or more claims each, at $14,422 in total drug cost. In 2023, CMS named 255 claims across 9 drugs.
Dr. Chyung's Part D claims by kind of drug, 2024
- Generic306 claims86%
- Brand-name51 claims14%
Dr. Chyung'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. Chyung's Part D claims, 2024
- Antibiotics23%81 of 357 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: 2552024: 2571%
Drugs named by CMS: 10 in 2024, 9 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. Sang Young Chyung received $385 in industry payments from 2016 to 2024
CMS Open Payments shows 27 general payments to Dr. Chyung from 5 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 83% of the total. Mylan Inc. paid the most, $162.
General payments to Dr. Chyung by program year, 2016 to 2024
General payments to Dr. Chyung by kind, 2016 to 2024
- Food and beverage$32083%
- Education$6617%
Companies that paid Dr. Chyung the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Sang Young Chyung'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 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. Sang Young Chyung
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. Sang Young Chyung's NPI number?
Dr. Sang Young Chyung's NPI number is 1659341311. It was assigned on January 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Sang Young Chyung?
Dr. Sang Young Chyung is an allergist and immunologist in Munster, Indiana. The primary specialty in the NPI Registry is Allergy & Immunology Physician (taxonomy code 207K00000X).
Where does Dr. Sang Young Chyung practice?
Dr. Chyung practices at 901 Macarthur Blvd, Munster, IN 46321. Dr. Chyung's primary practice is Community Hospital in Munster, Indiana.
What is Dr. Sang Young Chyung's office phone number?
The practice phone on file for Dr. Chyung is (219) 836-1600.
What is Dr. Sang Young Chyung's medical license number?
Dr. Chyung holds Indiana license 01039108A.
Does Dr. Sang Young Chyung accept Medicare?
Yes. CMS data shows Dr. Chyung billed Medicare for 6,885 services in 2024.
How many Medicare patients does Dr. Sang Young Chyung see?
CMS counts 50 Medicare patients who saw Dr. Chyung in 2024, with an average age of 75.
What services does Dr. Sang Young Chyung bill to Medicare?
In 2024, Dr. Chyung's most billed Medicare services were allergy test or treatment (95165), office visit, established patient (99214) and allergy test or treatment (95117).
What drugs does Dr. Sang Young Chyung prescribe most?
In 2024 Medicare Part D data, Dr. Chyung's most prescribed drugs by claims were Montelukast Sodium, Azithromycin and Azelastine HCl.
Has Dr. Sang Young Chyung received payments from drug or device companies?
CMS Open Payments shows $385 in general payments to Dr. Chyung from 5 companies from 2016 to 2024. The largest total came from Mylan Inc.
How long has Dr. Sang Young Chyung been practicing?
Dr. Chyung graduated from medical school in 1983, 43 years ago.
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