Dr. Yien Li, MD
- Medicare services, 2024
- 902
- Medicare patients, 2024
- 361
- Part D claims, 2024
- 295
- MIPS score, 2024
- 95
- Hospital affiliations
- 2
- Practice address
- 1000 N Westmoreland Rd, Lake Forest, IL 60045
- Practice phone
- Call (847) 234-5600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Northwestern Catherine Gratz Griffin Lake Forest Hospital
Lake Forest, Illinois
Find Dr. Li's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Yien Li is a hospitalist in Lake Forest, Illinois
Dr. Li practices at Northwestern Catherine Gratz Griffin Lake Forest Hospital in Lake Forest, Illinois.
Dr. Li's NPI, 1861768590, was assigned on March 27, 2012. Dr. Li graduated from Northwestern University Feinberg Medical School in 2012. Dr. Li holds Illinois license 036135978.
- NPI
- 1861768590NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6800026709
- NPI enumeration date
- March 27, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (847) 234-5600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Yien Li practices at Northwestern Catherine Gratz Griffin Lake Forest Hospital in Lake Forest, Illinois
Dr. Li's primary practice is Northwestern Catherine Gratz Griffin Lake Forest Hospital, at 1000 N Westmoreland Rd, Lake Forest, IL 60045 in Lake County. The practice phone is (847) 234-5600.
- Northwestern Catherine Gratz Griffin Lake Forest Hospital1000 N Westmoreland Rd, Lake Forest, IL 60045 · Lake CountyPhone(847) 234-5600
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Yien Li is affiliated with 3 sites of care and 1 medical group
Dr. Li's primary practice is Northwestern Catherine Gratz Griffin Lake Forest Hospital in Lake Forest, Illinois. Dr. Li is also affiliated with Northwestern Medicine Catherine Gratz Griffin Lake Forest Hospital. The medical group on file is Northwestern Medical Faculty Foundation. Dmand AI also links Dr. Li to 1 more hospital, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Yien Li's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Li practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwestern Catherine Gratz Griffin Lake Forest Hospital | 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. Yien Li is one of 1,321 hospitalists in Illinois
Hospitalist is Dr. Li's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Li is licensed in Illinois.
Specialties and state licenses
- Hospitalist, IllinoisPrimary
Hospitalists near Dr. Li
Counts of hospitalists 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. Yien Li billed Medicare for 902 services in 2024
CMS data shows 902 Medicare services from Dr. Li across 6 procedure codes in 2024, for 361 Medicare patients. Medicare paid $87,670 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Li's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 9702024: 87210%
- Other services
- 2023: 02024: 30
Dr. Li compared with the Illinois median for hospitalists, 2024
- Dr. Li
- Illinois median
- Medicare services
- 902vs 54366% above
- Medicare patients
- 361vs 24249% above
- Part D claims
- 105vs 5398% above
Medians across 1,248 hospitalists in Illinois with Dmand AI profiles that report each measure.
Dr. Li'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. Yien Li treated 361 Medicare patients in 2024, average age 78
CMS counts 361 Medicare patients who saw Dr. Li in 2024. The largest group is 75 to 84, with 136 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 13% are also on Medicaid. Their average risk score is 2.39, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Li's median patient age at 75, with 54% women.
Dr. Li's Medicare patients by age, 2024
Dr. Li's Medicare patients by sex, 2024
- Women18250%
- Men17950%
Chronic conditions among Dr. Li's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease65%
- Arthritis63%
- Chronic kidney disease48%
- Heart failure47%
- Diabetes45%
- Atrial fibrillation43%
Share of Medicare patients with each condition. A patient can have several.
Dr. Li's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Yien Li wrote 295 Medicare Part D claims in 2024
In 2024, Dr. Li wrote 295 Medicare Part D claims for 121 patients. 84% of them were for generic drugs. CMS names the drug for 105 of them, across 6 drugs with 11 or more claims each, at $16,836 in total drug cost. In 2023, CMS named 105 claims across 7 drugs.
Dr. Li's Part D claims by kind of drug, 2024
- Generic249 claims84%
- Brand-name and other46 claims16%
Dr. Li'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. Li's Part D claims, 2024
- Opioids4%11 of 295 claims
- Antibiotics15%44 of 295 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: 1052024: 105No change
Drugs named by CMS: 6 in 2024, 7 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
Dr. Yien Li 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. Li for performance year 2024, reported through an alternative payment model (APM). Dr. Li accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Li'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.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Yien Li graduated from Northwestern University Feinberg Medical School
Dr. Li graduated from Northwestern University Feinberg Medical School in 2012.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Yien Li'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 DataDmand AI Org Hierarchy 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Yien Li
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. Yien Li's NPI number?
Dr. Yien Li's NPI number is 1861768590. It was assigned on March 27, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Yien Li?
Dr. Yien Li is a hospitalist in Lake Forest, Illinois. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Yien Li practice?
Dr. Li practices at 1000 N Westmoreland Rd, Lake Forest, IL 60045. Dr. Li's primary practice is Northwestern Catherine Gratz Griffin Lake Forest Hospital in Lake Forest, Illinois. Dmand AI also links Dr. Li to 1 hospital.
What is Dr. Yien Li's office phone number?
The practice phone on file for Dr. Li is (847) 234-5600.
What is Dr. Yien Li's medical license number?
Dr. Li holds Illinois license 036135978.
Which hospitals is Dr. Yien Li affiliated with?
Dr. Li is affiliated with Northwestern Medicine Catherine Gratz Griffin Lake Forest Hospital. Dmand AI links Dr. Li to 1 more hospital.
What medical group is Dr. Yien Li part of?
Dr. Li is linked to Northwestern Medical Faculty Foundation.
Does Dr. Yien Li accept Medicare?
Yes. CMS data shows Dr. Li billed Medicare for 902 services in 2024, and Dr. Li accepts Medicare assignment.
What is Dr. Yien Li's MIPS score?
Dr. Li'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. Yien Li see?
CMS counts 361 Medicare patients who saw Dr. Li in 2024, with an average age of 78.
Show 4 more questionsShow fewer questions
What services does Dr. Yien Li bill to Medicare?
In 2024, Dr. Li's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99239) and hospital inpatient care (99223).
Where did Dr. Yien Li go to medical school?
Dr. Li graduated from Northwestern University Feinberg Medical School in 2012.
What drugs does Dr. Yien Li prescribe most?
In 2024 Medicare Part D data, Dr. Li's most prescribed drugs by claims were Eliquis, Metoprolol Succinate and Pantoprazole Sodium.
How long has Dr. Yien Li been practicing?
Dr. Li graduated from medical school in 2012, 14 years ago.
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