Dr. Nelson C. Yu, MD
- Medicare services, 2024
- 535
- Medicare patients, 2024
- 197
- Part D claims, 2024
- 1,003
- Hospital affiliations
- 4
- Industry payments
- $13,126
- Practice address
- 4273 State Rte 159, Glen Carbon, IL 62034
- Practice phone
- Call (818) 666-0602
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
AHS IL Medical Group
Glen Carbon, Illinois
Find Dr. Yu's professional email, personal email and mobile number
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Dr. Nelson C. Yu is a sleep medicine (internal medicine) physician in Glen Carbon, Illinois
Dr. Yu practices at AHS IL Medical Group in Glen Carbon, Illinois.
Dr. Yu's NPI, 1447297601, was assigned on May 31, 2006. Dr. Yu holds Illinois license 03615448.
- NPI
- 1447297601NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3779554233
- NPI enumeration date
- May 31, 2006
- NPI status
- Active
- Practice phone
- (818) 666-0602
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Nelson C. Yu practices at AHS IL Medical Group in Glen Carbon, Illinois
Dr. Yu's primary practice is AHS IL Medical Group, at 4273 State Rte 159, Glen Carbon, IL 62034 in Madison County. The practice phone is (818) 666-0602.
- AHS IL Medical Group4273 State Rte 159, Glen Carbon, IL 62034 · Madison CountyPhone(818) 666-0602
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Nelson C. Yu is affiliated with 6 sites of care and 3 medical groups
Dr. Yu's primary practice is AHS IL Medical Group in Glen Carbon, Illinois. Dr. Yu is also affiliated with Alton Memorial Hospital. The medical group on file is Gateway Regional Medical Center. Dmand AI also links Dr. Yu to 3 more hospitals, 2 medical groups 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. Nelson C. Yu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Yu practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| AHS IL Medical Group | Available with a free account |
| +5 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nelson C. Yu is one of 34 sleep medicine (internal medicine) physicians in Illinois
Internal medicine is Dr. Yu's primary specialty in the NPI Registry, under taxonomy code 207RS0012X. The record also lists sleep medicine. Dmand AI has Dr. Yu's licenses on file in 2 states: Illinois and Washington.
Specialties and state licenses
- Sleep medicine (internal medicine), IllinoisPrimary
- Pulmonary disease, Washington
Sleep medicine (internal medicine) physicians near Dr. Yu
Counts of sleep medicine (internal medicine) 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. Nelson C. Yu billed Medicare for 535 services in 2024
CMS data shows 535 Medicare services from Dr. Yu across 8 procedure codes in 2024, for 197 Medicare patients. Medicare paid $32,561 for them.
Dr. Yu's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1702024: 31988%
- Tests and treatments
- 2023: 3312024: 21635%
Where Dr. Yu's Medicare services took place, 2024
- In an office31960%
- In a facility21640%
Dr. Yu compared with the Illinois median for sleep medicine (internal medicine) physicians, 2024
- Dr. Yu
- Illinois median
- Medicare services
- 535vs 514Close to median
- Medicare patients
- 197vs 27629% below
- Part D claims
- 955vs 5617.1 times
Medians across 32 sleep medicine (internal medicine) physicians in Illinois with Dmand AI profiles that report each measure.
Dr. Yu'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. Yu and other sleep medicine (internal medicine) physicians in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nelson C. Yu treated 197 Medicare patients in 2024, average age 70
CMS counts 197 Medicare patients who saw Dr. Yu in 2024. The largest group is 65 to 74, with 96 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 35% are also on Medicaid. Their average risk score is 1.37, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Yu's median patient age at 63, with 53% women.
Dr. Yu's Medicare patients by age, 2024
Dr. Yu's Medicare patients by sex, 2024
- Women10352%
- Men9448%
Chronic conditions among Dr. Yu's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes48%
- Arthritis47%
- COPD46%
- Ischemic heart disease36%
- Anxiety33%
- Tobacco use32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Yu's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nelson C. Yu wrote 1,003 Medicare Part D claims in 2024
In 2024, Dr. Yu wrote 1,003 Medicare Part D claims for 188 patients. 45% of them were for generic drugs. CMS names the drug for 955 of them, across 18 drugs with 11 or more claims each, at $755,667 in total drug cost. In 2023, CMS named 754 claims across 16 drugs.
Dr. Yu's Part D claims by kind of drug, 2024
- Generic451 claims45%
- Brand-name552 claims55%
Dr. Yu'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: 7542024: 95527%
Drugs named by CMS: 18 in 2024, 16 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. Nelson C. Yu received $13,126 in industry payments from 2016 to 2025
CMS Open Payments shows 587 general payments to Dr. Yu from 52 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 97% of the total. AstraZeneca Pharmaceuticals LP paid the most, $4,357.
General payments to Dr. Yu by program year, 2016 to 2025
General payments to Dr. Yu by kind, 2016 to 2025
- Food and beverage$12,71097%
- Education$4173%
Companies that paid Dr. Yu 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. Nelson C. Yu'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. Nelson C. Yu
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. Nelson C. Yu's NPI number?
Dr. Nelson C. Yu's NPI number is 1447297601. It was assigned on May 31, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Nelson C. Yu?
Dr. Nelson C. Yu is a sleep medicine (internal medicine) physician in Glen Carbon, Illinois. The primary specialty in the NPI Registry is Sleep Medicine (Internal Medicine) Physician (taxonomy code 207RS0012X).
Where does Dr. Nelson C. Yu practice?
Dr. Yu practices at 4273 State Rte 159, Glen Carbon, IL 62034. Dr. Yu's primary practice is AHS IL Medical Group in Glen Carbon, Illinois. Dmand AI also links Dr. Yu to 3 hospitals, 2 medical groups and 1 group practice or clinic.
What is Dr. Nelson C. Yu's office phone number?
The practice phone on file for Dr. Yu is (818) 666-0602.
What is Dr. Nelson C. Yu's medical license number?
Dr. Yu holds Illinois license 03615448, one of the licenses on file in 2 states.
Which states has Dr. Nelson C. Yu been licensed in?
Dmand AI has state licenses on file for Dr. Yu in Illinois and Washington.
Which hospitals is Dr. Nelson C. Yu affiliated with?
Dr. Yu is affiliated with Alton Memorial Hospital. Dmand AI links Dr. Yu to 3 more hospitals.
What medical group is Dr. Nelson C. Yu part of?
Dr. Yu is linked to Gateway Regional Medical Center. Dmand AI links Dr. Yu to 2 more medical groups.
Does Dr. Nelson C. Yu accept Medicare?
Yes. CMS data shows Dr. Yu billed Medicare for 535 services in 2024.
How many Medicare patients does Dr. Nelson C. Yu see?
CMS counts 197 Medicare patients who saw Dr. Yu in 2024, with an average age of 70.
Show 4 more questionsShow fewer questions
What services does Dr. Nelson C. Yu bill to Medicare?
In 2024, Dr. Yu's most billed Medicare services were office visit, established patient (99214), office visit, new patient (99204) and lung function service (94060).
What drugs does Dr. Nelson C. Yu prescribe most?
In 2024 Medicare Part D data, Dr. Yu's most prescribed drugs by claims were Albuterol Sulfate Hfa, Breo Ellipta and Spiriva Respimat.
Has Dr. Nelson C. Yu received payments from drug or device companies?
CMS Open Payments shows $13,126 in general payments to Dr. Yu from 52 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Nelson C. Yu been practicing?
Dr. Yu graduated from medical school in 1991, 35 years ago.
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