Dr. David S. Lee, MD
- Medicare services, 2024
- 555
- Medicare patients, 2024
- 241
- Part D claims, 2024
- 227
- Hospital affiliations
- 2
- Industry payments
- $20
- Practice address
- 836 West Wellington Avenue, Chicago, IL 60657
- Practice phone
- Call (773) 975-1600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Lee's professional email, personal email and mobile number
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Dr. David S. Lee is an internist in Chicago, Illinois
Dr. Lee practices at Advocate Illinois Masonic Medical Center in Chicago, Illinois, part of Advocate Health.
Dr. Lee's NPI, 1487850996, was assigned on June 22, 2007. Dr. Lee graduated from University of Michigan Medical School in 2007. Dr. Lee holds Ohio license 35.096920.
- NPI
- 1487850996NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2860679263
- NPI enumeration date
- June 22, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (773) 975-1600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David S. Lee practices at Advocate Illinois Masonic Medical Center in Chicago, Illinois
Dr. Lee's primary practice is Advocate Illinois Masonic Medical Center, at 836 West Wellington Avenue, Chicago, IL 60657 in Cook County. The practice phone is (773) 975-1600.
- Advocate Illinois Masonic Medical Center836 West Wellington Avenue, Chicago, IL 60657 · Cook CountyPhone(773) 975-1600
Source: Dmand AI Affiliation Data
Dr. David S. Lee is affiliated with 4 sites of care and 3 medical groups
Dr. Lee's primary practice is Advocate Illinois Masonic Medical Center in Chicago, Illinois, part of Advocate Health. Dr. Lee is also affiliated with Northwestern Memorial Hospital. The medical group on file is Northwestern Medical Faculty Foundation. Dmand AI also links Dr. Lee to 2 more medical groups, 1 group practice or clinic and 1 hospice, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David S. Lee's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lee practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Advocate Illinois Masonic Medical Center | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David S. Lee is one of 5,652 internists in Illinois
Internal medicine is Dr. Lee's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Lee is licensed in Ohio.
Specialties and state licenses
- Internal medicine, OhioPrimary
Internists near Dr. Lee
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 S. Lee billed Medicare for 555 services in 2024
CMS data shows 555 Medicare services from Dr. Lee across 4 procedure codes in 2024, for 241 Medicare patients. Medicare paid $56,516 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Lee's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6382024: 55513%
Dr. Lee compared with the Illinois median for internists, 2024
- Dr. Lee
- Illinois median
- Medicare services
- 555vs 566Close to median
- Medicare patients
- 241vs 20816% above
- Part D claims
- 13vs 28495% below
Medians across 5,192 internists in Illinois with Dmand AI profiles that report each measure.
Dr. Lee'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 S. Lee treated 241 Medicare patients in 2024, average age 76
CMS counts 241 Medicare patients who saw Dr. Lee in 2024. The largest group is 65 to 74, with 82 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 46% are also on Medicaid. Their average risk score is 2.64, 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. Lee's median patient age at 75, with 60% women.
Dr. Lee's Medicare patients by age, 2024
Dr. Lee's Medicare patients by sex, 2024
- Women12652%
- Men11548%
Chronic conditions among Dr. Lee's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease62%
- Arthritis61%
- Diabetes56%
- Heart failure56%
- Chronic kidney disease54%
- Mood disorders46%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lee'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
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David S. Lee wrote 227 Medicare Part D claims in 2024
In 2024, Dr. Lee wrote 227 Medicare Part D claims for 103 patients. 86% of them were for generic drugs. CMS names the drug for 13 of them, across 1 drug with 11 or more claims each, at $61 in total drug cost. In 2023, CMS named 13 claims across 1 drug.
Dr. Lee's Part D claims by kind of drug, 2024
- Generic195 claims86%
- Brand-name and other32 claims14%
Dr. Lee'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. Lee's Part D claims, 2024
- Opioids9%20 of 227 claims
- Antibiotics13%29 of 227 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: 132024: 13No change
Drugs named by CMS: 1 in 2024, 1 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
How Dr. David S. Lee takes part in Medicare
Dr. Lee accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. David S. Lee received $20 in industry payments in 2017
CMS Open Payments shows 1 general payment to Dr. Lee from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $20.
Companies that paid Dr. Lee the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David S. Lee graduated from University of Michigan Medical School
Dr. Lee graduated from University of Michigan Medical School in 2007.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David S. Lee'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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) |
| Industry payments | Open Payments (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. David S. Lee
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 S. Lee's NPI number?
Dr. David S. Lee's NPI number is 1487850996. It was assigned on June 22, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. David S. Lee?
Dr. David S. Lee is an internist in Chicago, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. David S. Lee practice?
Dr. Lee practices at 836 West Wellington Avenue, Chicago, IL 60657. Dr. Lee's primary practice is Advocate Illinois Masonic Medical Center in Chicago, Illinois, part of Advocate Health. Dmand AI also links Dr. Lee to 2 medical groups, 1 group practice or clinic and 1 hospice.
What is Dr. David S. Lee's office phone number?
The practice phone on file for Dr. Lee is (773) 975-1600.
What is Dr. David S. Lee's medical license number?
Dr. Lee holds Ohio license 35.096920.
Which hospitals is Dr. David S. Lee affiliated with?
Dr. Lee practices at Advocate Illinois Masonic Medical Center in Chicago, Illinois. Dr. Lee is also affiliated with Northwestern Memorial Hospital.
What medical group is Dr. David S. Lee part of?
Dr. Lee is linked to Northwestern Medical Faculty Foundation. Dmand AI links Dr. Lee to 2 more medical groups.
Does Dr. David S. Lee accept Medicare?
Yes. CMS data shows Dr. Lee billed Medicare for 555 services in 2024, and Dr. Lee accepts Medicare assignment.
How many Medicare patients does Dr. David S. Lee see?
CMS counts 241 Medicare patients who saw Dr. Lee in 2024, with an average age of 76.
What services does Dr. David S. Lee bill to Medicare?
In 2024, Dr. Lee's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99239) and hospital inpatient care (99223).
Show 4 more questionsShow fewer questions
Where did Dr. David S. Lee go to medical school?
Dr. Lee graduated from University of Michigan Medical School in 2007.
What drugs does Dr. David S. Lee prescribe most?
In 2024 Medicare Part D data, Dr. Lee's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. David S. Lee received payments from drug or device companies?
CMS Open Payments shows $20 in general payments to Dr. Lee from 1 company from 2017 to 2017. The largest total came from Boston Scientific Corporation.
How long has Dr. David S. Lee been practicing?
Dr. Lee graduated from medical school in 2007, 19 years ago.
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