Dr. Alexander S. Lee, MD
- Medicare services, 2024
- 686
- Medicare patients, 2024
- 375
- Part D claims, 2024
- 498
- Publications
- 4
- Hospital affiliations
- 4
- Practice address
- 700 South Park St, Madison, WI 53715
- Practice phone
- Call (608) 251-6100
- 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. Alexander S. Lee is a gastroenterologist in Madison, Wisconsin
Dr. Lee practices at SSM Health St. Mary's Hospital - Madison in Madison, Wisconsin, part of SSM Health Care.
Dr. Lee's NPI, 1811351042, was assigned on April 13, 2016. Dr. Lee graduated from Tufts University School of Medicine in 2016. Dr. Lee holds Wisconsin license 68559-20.
- NPI
- 1811351042NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6608169222
- NPI enumeration date
- April 13, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (608) 251-6100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Alexander S. Lee practices at SSM Health St. Mary's Hospital - Madison in Madison, Wisconsin
Dr. Lee's primary practice is SSM Health St. Mary's Hospital - Madison, at 700 South Park St, Madison, WI 53715 in Dane County. The practice phone is (608) 251-6100.
- SSM Health St. Mary's Hospital - Madison700 South Park St, Madison, WI 53715 · Dane CountyPhone(608) 251-6100
Source: Dmand AI Affiliation Data
Dr. Alexander S. Lee is affiliated with 4 sites of care and 2 medical groups
Dr. Lee's primary practice is SSM Health St. Mary's Hospital - Madison in Madison, Wisconsin, part of SSM Health Care. Dr. Lee is also affiliated with SSM Health St. Clare Hospital - Baraboo. The medical group on file is SSM Health Dean Medical Group. Dmand AI also links Dr. Lee to 2 more hospitals and 1 medical group, 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. Alexander 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 |
|---|---|
| SSM Health St. Mary's Hospital - Madison | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Alexander S. Lee is one of 277 gastroenterologists in Wisconsin
Gastroenterology is Dr. Lee's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Lee is licensed in Wisconsin.
Specialties and state licenses
- Gastroenterology, WisconsinPrimary
Gastroenterologists near Dr. Lee
Counts of gastroenterologists 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. Alexander S. Lee billed Medicare for 686 services in 2024
CMS data shows 686 Medicare services from Dr. Lee across 15 procedure codes in 2024, for 375 Medicare patients. Medicare paid $56,328 for them.
Dr. Lee's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 2352024: 33844%
- Other services
- 2023: 1252024: 17540%
- Office and hospital visits
- 2023: 1302024: 17333%
Where Dr. Lee's Medicare services took place, 2024
- In an office8412%
- In a facility60288%
Dr. Lee compared with the Wisconsin median for gastroenterologists, 2024
- Dr. Lee
- Wisconsin median
- Medicare services
- 686vs 3292.1 times
- Medicare patients
- 375vs 25845% above
- Part D claims
- 408vs 429Close to median
Medians across 278 gastroenterologists in Wisconsin 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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Lee and other gastroenterologists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Alexander S. Lee treated 375 Medicare patients in 2024, average age 72
CMS counts 375 Medicare patients who saw Dr. Lee in 2024. The largest group is 65 to 74, with 207 patients. 68% of them have high cholesterol, and 62% have high blood pressure. 11% are also on Medicaid. Their average risk score is 1.18, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Lee's median patient age at 60, with 54% women.
Dr. Lee's Medicare patients by age, 2024
Dr. Lee's Medicare patients by sex, 2024
- Women21958%
- Men15642%
Chronic conditions among Dr. Lee's Medicare patients, 2024
- High cholesterol68%
- High blood pressure62%
- Arthritis33%
- Diabetes27%
- Mood disorders25%
- Anxiety23%
- Ischemic heart disease23%
- Chronic kidney disease22%
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 60
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. Alexander S. Lee wrote 498 Medicare Part D claims in 2024
In 2024, Dr. Lee wrote 498 Medicare Part D claims for 335 patients. 96% of them were for generic drugs. CMS names the drug for 408 of them, across 7 drugs with 11 or more claims each, at $13,281 in total drug cost. In 2023, CMS named 348 claims across 8 drugs.
Dr. Lee's Part D claims by kind of drug, 2024
- Generic478 claims96%
- Brand-name20 claims4%
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
- Antibiotics3%13 of 498 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: 3482024: 40817%
Drugs named by CMS: 7 in 2024, 8 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. Alexander S. Lee ranks in the 92nd percentile for colonoscopy in Medicare
Dr. Lee accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Lee as offering telehealth. CMS counts 176 procedures of colonoscopy by Dr. Lee, more than 92% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Lee ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 89th percentile187 procedures
- Colonoscopy
- 92nd percentile176 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Alexander S. Lee has 4 publications on record
Dmand AI links 4 papers to Dr. Lee, published from 2017 to 2020. 2020 was the busiest year, with 2. The most frequent topics are Liver Transplantation. Dr. Lee's most frequent co-authors are Freddy J. Caldera, MD, Matthew Winston Caldis, MD, MS and Thomas Peter Couri, MD.
Topics Dr. Lee writes about most
- Liver Transplantation
Dr. Lee's most frequent co-authors
- Freddy J. Caldera, MD2 shared papers
- Matthew Winston Caldis, MD, MS1 shared paper
- Thomas Peter Couri, MD1 shared paper
Recent publications by Dr. Lee
Minerva Gastroenterol Dietol
See who Dr. Lee researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Lee works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Alexander S. Lee received $152 in industry payments from 2017 to 2022
CMS Open Payments shows 2 general payments to Dr. Lee from 2 drug and device companies from 2017 to 2022. Food and beverage make up the largest share, 100% of the total. Mallinckrodt Hospital Products Inc. paid the most, $128.
General payments to Dr. Lee by program year, 2017 to 2022
Companies that paid Dr. Lee the most, 2017 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Alexander S. Lee graduated from Tufts University School of Medicine
Dr. Lee graduated from Tufts University School of Medicine in 2016.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Alexander 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Alexander 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. Alexander S. Lee's NPI number?
Dr. Alexander S. Lee's NPI number is 1811351042. It was assigned on April 13, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Alexander S. Lee?
Dr. Alexander S. Lee is a gastroenterologist in Madison, Wisconsin. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Alexander S. Lee practice?
Dr. Lee practices at 700 South Park St, Madison, WI 53715. Dr. Lee's primary practice is SSM Health St. Mary's Hospital - Madison in Madison, Wisconsin, part of SSM Health Care. Dmand AI also links Dr. Lee to 2 hospitals and 1 medical group.
What is Dr. Alexander S. Lee's office phone number?
The practice phone on file for Dr. Lee is (608) 251-6100.
What is Dr. Alexander S. Lee's medical license number?
Dr. Lee holds Wisconsin license 68559-20.
Which hospitals is Dr. Alexander S. Lee affiliated with?
Dr. Lee practices at SSM Health St. Mary's Hospital - Madison in Madison, Wisconsin. Dr. Lee is also affiliated with SSM Health St. Clare Hospital - Baraboo. Dmand AI links Dr. Lee to 2 more hospitals.
What medical group is Dr. Alexander S. Lee part of?
Dr. Lee is linked to SSM Health Dean Medical Group. Dmand AI links Dr. Lee to 1 more medical group.
Does Dr. Alexander S. Lee accept Medicare?
Yes. CMS data shows Dr. Lee billed Medicare for 686 services in 2024, and Dr. Lee accepts Medicare assignment.
Does Dr. Alexander S. Lee offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Lee as offering telehealth services.
How many Medicare patients does Dr. Alexander S. Lee see?
CMS counts 375 Medicare patients who saw Dr. Lee in 2024, with an average age of 72.
Show 7 more questionsShow fewer questions
What services does Dr. Alexander S. Lee bill to Medicare?
In 2024, Dr. Lee's most billed Medicare services were surgery: digestive system (45385), medicare service (G0500) and surgery: digestive system (43239).
Where did Dr. Alexander S. Lee go to medical school?
Dr. Lee graduated from Tufts University School of Medicine in 2016.
What drugs does Dr. Alexander S. Lee prescribe most?
In 2024 Medicare Part D data, Dr. Lee's most prescribed drugs by claims were Gavilyte-C, Omeprazole and Gavilyte-G.
Has Dr. Alexander S. Lee received payments from drug or device companies?
CMS Open Payments shows $152 in general payments to Dr. Lee from 2 companies from 2017 to 2022. The largest total came from Mallinckrodt Hospital Products Inc.
How long has Dr. Alexander S. Lee been practicing?
Dr. Lee graduated from medical school in 2016, 10 years ago.
Does Dr. Alexander S. Lee do research?
Dmand AI links 4 publications to Dr. Lee, published from 2017 to 2020.
Who does Dr. Alexander S. Lee publish with?
Dr. Lee's most frequent co-authors are Freddy J. Caldera, MD (2 shared papers), Matthew Winston Caldis, MD, MS (1 shared paper) and Thomas Peter Couri, MD (1 shared paper).
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