$1,364 in research paymentsHidradenitis SuppurativaHidradenitisUpadacitinib
Dr. Walter J. Liszewski, MD
NPI1033505243PAC ID5496040958
- Medicare services, 2024
- 5,475
- Medicare patients, 2024
- 449
- Part D claims, 2024
- 933
- Clinical trials
- 2
- MIPS score, 2024
- 95
- Practice address
- 676 N St Clair St 20th Fl Ste 2020, Chicago, IL 60611
- Practice phone
- Call (312) 472-5200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Northwestern Medicine Dialysis Center
Dialysis Center - Independent · Chicago, Illinois
Find Dr. Liszewski'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. Walter J. Liszewski is a dermatologist in Chicago, Illinois
Dr. Liszewski practices at Northwestern Medicine Dialysis Center in Chicago, Illinois.
Dr. Liszewski's NPI, 1033505243, was assigned on April 14, 2015. Dr. Liszewski graduated from Tulane University School of Medicine in 2015. Dr. Liszewski holds Illinois license 036.149833.
NPI and contact details
- NPI
- 1033505243NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5496040958
- NPI enumeration date
- April 14, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (312) 472-5200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Walter J. Liszewski practices at Northwestern Medicine Dialysis Center in Chicago, Illinois
Dr. Liszewski's primary practice is Northwestern Medicine Dialysis Center, at 676 N St Clair St 20th Fl Ste 2020, Chicago, IL 60611 in Cook County. The practice phone is (312) 472-5200.
- Northwestern Medicine Dialysis Center676 N St Clair St 20th Fl Ste 2020, Chicago, IL 60611 · Cook CountyPhone(312) 472-5200
Source: Dmand AI Affiliation Data
Dr. Walter J. Liszewski is affiliated with 4 sites of care and 1 medical group
Dr. Liszewski's primary practice is Northwestern Medicine Dialysis Center in Chicago, Illinois. Dr. Liszewski is also affiliated with Northwestern Memorial Hospital. The medical group on file is Northwestern Medical Faculty Foundation. Dmand AI also links Dr. Liszewski to 1 more hospital and 1 group practice or clinic, each named with a free account. Dr. Liszewski's employer is on file too: a dialysis center.
Northwestern Medicine Dialysis CenterPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Walter J. Liszewski's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Liszewski practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwestern Medicine Dialysis Center | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Walter J. Liszewski is one of 564 dermatologists in Illinois
Dermatology is Dr. Liszewski's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dmand AI has Dr. Liszewski's licenses on file in 2 states: Illinois and Minnesota.
Specialties and state licenses
- Dermatology, IllinoisPrimary
- Minnesota license
Dermatologists near Dr. Liszewski
Counts of dermatologists 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. Walter J. Liszewski billed Medicare for 5,475 services in 2024
CMS data shows 5,475 Medicare services from Dr. Liszewski across 15 procedure codes in 2024, for 449 Medicare patients. Medicare paid $92,467 for them. Every service was in an office.
Medicare services, 20245,475
Medicare patients449
Paid by Medicare$92,467
Procedure codes15
Dr. Liszewski's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 4,1722024: 4,2742%
- Surgery
- 2023: 6552024: 5979%
- Office and hospital visits
- 2023: 6232024: 5689%
- Other services
- 2023: 02024: 36
- Drugs given in the office
- 2023: 282024: 0100%
Dr. Liszewski compared with the Illinois median for dermatologists, 2024
- Dr. Liszewski
- Illinois median
- Medicare services
- 5,475vs 1,7793.1 times
- Medicare patients
- 449vs 4919% below
- Part D claims
- 788vs 40595% above
Medians across 526 dermatologists in Illinois with Dmand AI profiles that report each measure.
Dr. Liszewski'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. Liszewski and other dermatologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Walter J. Liszewski treated 449 Medicare patients in 2024, average age 73
CMS counts 449 Medicare patients who saw Dr. Liszewski in 2024. The largest group is 65 to 74, with 245 patients. 74% of them have high cholesterol, and 60% have high blood pressure. 10% are also on Medicaid. Their average risk score is 0.99, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Liszewski's median patient age at 49, with 57% women.
Medicare patients, 2024449
Average age73
Average risk score0.99
Also on Medicaid10%
Dr. Liszewski's Medicare patients by age, 2024
Dr. Liszewski's Medicare patients by sex, 2024
- Women23953%
- Men21047%
Chronic conditions among Dr. Liszewski's Medicare patients, 2024
- High cholesterol74%
- High blood pressure60%
- Arthritis43%
- Ischemic heart disease24%
- Cancer20%
- Mood disorders20%
- Anxiety19%
- Depression17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Liszewski's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 49
Patient panel by sex, all payers
- Women57%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Walter J. Liszewski wrote 933 Medicare Part D claims in 2024
In 2024, Dr. Liszewski wrote 933 Medicare Part D claims for 342 patients. 82% of them were for generic drugs. CMS names the drug for 788 of them, across 23 drugs with 11 or more claims each, at $782,554 in total drug cost. In 2023, CMS named 744 claims across 22 drugs.
Part D claims, 2024933
Drugs named by CMS23
Total drug cost$782,554
Part D patients342
Dr. Liszewski's Part D claims by kind of drug, 2024
- Generic764 claims82%
- Brand-name169 claims18%
Dr. Liszewski'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. Liszewski's Part D claims, 2024
- Antibiotics3%24 of 933 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: 7442024: 7886%
Drugs named by CMS: 23 in 2024, 22 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. Walter J. Liszewski 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. Liszewski for performance year 2024, reported through an alternative payment model (APM). Dr. Liszewski accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Liszewski as offering telehealth. CMS counts 203 procedures of removal of skin lesions by Dr. Liszewski, more than 79% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Liszewski'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.
Where Dr. Liszewski ranks in Medicare procedure volume
- Removal of skin lesions
- 79th percentile203 procedures
- Skin biopsy
- 74th percentile87 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Walter J. Liszewski has worked on 2 clinical trials
Dmand AI links Dr. Liszewski to 2 clinical trials. 1 is still active or recruiting. Conditions studied include Eczema, Hidradenitis Suppurativa and Dermatitis, Atopic. Open Payments lists research payments to Dr. Liszewski that name 2 trials.
Conditions in Dr. Liszewski's trials
- Eczema
- Hidradenitis Suppurativa
- Dermatitis, Atopic
- Hidradenitis
Investigators on the most trials with Dr. Liszewski
- David M. Pariser, MD2 shared trials
- Lindsay Skye Ackerman, MD1 shared trial
- Syed S. Ali, MD1 shared trial
Recent clinical trials with Dr. Liszewski
$6,675 in research paymentsEczemaDermatitis, AtopicBaricitinib
Sources: Open Payments (CMS), 2025 data, released July 7, 2026; ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage
Dr. Walter J. Liszewski received $413,002 in industry payments from 2019 to 2025
CMS Open Payments shows 377 general payments to Dr. Liszewski from 18 drug and device companies from 2019 to 2025. Speaker and faculty fees make up the largest share, 69% of the total. Eli Lilly and Company paid the most, $119,695. It also lists 8 research payments totaling $8,039 from 2020 to 2023, naming 2 clinical trials.
General payments to Dr. Liszewski by program year, 2019 to 2025
General payments to Dr. Liszewski by kind, 2019 to 2025
$413Kin total
- Speaker and faculty fees$283,72269%
- Consulting fees$90,50222%
- Travel and lodging$27,4167%
- Food and beverage$11,2713%
- Other$900%
Companies that paid Dr. Liszewski the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Walter J. Liszewski graduated from Tulane University School of Medicine
Dr. Liszewski graduated from Tulane University School of Medicine in 2015.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Walter J. Liszewski'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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Clinical trials and co-investigators | ClinicalTrials.gov (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. Walter J. Liszewski
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. Walter J. Liszewski's NPI number?
Dr. Walter J. Liszewski's NPI number is 1033505243. It was assigned on April 14, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Walter J. Liszewski?
Dr. Walter J. Liszewski is a dermatologist in Chicago, Illinois. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. Walter J. Liszewski practice?
Dr. Liszewski practices at 676 N St Clair St 20th Fl Ste 2020, Chicago, IL 60611. Dr. Liszewski's primary practice is Northwestern Medicine Dialysis Center in Chicago, Illinois. Dmand AI also links Dr. Liszewski to 1 hospital and 1 group practice or clinic.
What is Dr. Walter J. Liszewski's office phone number?
The practice phone on file for Dr. Liszewski is (312) 472-5200.
What is Dr. Walter J. Liszewski's medical license number?
Dr. Liszewski holds Illinois license 036.149833, one of the licenses on file in 2 states.
Which states has Dr. Walter J. Liszewski been licensed in?
Dmand AI has state licenses on file for Dr. Liszewski in Illinois and Minnesota.
Which hospitals is Dr. Walter J. Liszewski affiliated with?
Dr. Liszewski is affiliated with Northwestern Memorial Hospital. Dmand AI links Dr. Liszewski to 1 more hospital.
What medical group is Dr. Walter J. Liszewski part of?
Dr. Liszewski is linked to Northwestern Medical Faculty Foundation.
Does Dr. Walter J. Liszewski accept Medicare?
Yes. CMS data shows Dr. Liszewski billed Medicare for 5,475 services in 2024, and Dr. Liszewski accepts Medicare assignment.
Does Dr. Walter J. Liszewski offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Liszewski as offering telehealth services.
Show 8 more questionsShow fewer questions
What is Dr. Walter J. Liszewski's MIPS score?
Dr. Liszewski'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. Walter J. Liszewski see?
CMS counts 449 Medicare patients who saw Dr. Liszewski in 2024, with an average age of 73.
What services does Dr. Walter J. Liszewski bill to Medicare?
In 2024, Dr. Liszewski's most billed Medicare services were allergy test or treatment (95044), skin treatment (96900) and surgery: skin and soft tissue (17003).
Where did Dr. Walter J. Liszewski go to medical school?
Dr. Liszewski graduated from Tulane University School of Medicine in 2015.
What drugs does Dr. Walter J. Liszewski prescribe most?
In 2024 Medicare Part D data, Dr. Liszewski's most prescribed drugs by claims were Ketoconazole, Triamcinolone Acetonide and Minoxidil.
Has Dr. Walter J. Liszewski received payments from drug or device companies?
CMS Open Payments shows $413,002 in general payments to Dr. Liszewski from 18 companies from 2019 to 2025. The largest total came from Eli Lilly and Company.
How long has Dr. Walter J. Liszewski been practicing?
Dr. Liszewski graduated from medical school in 2015, 11 years ago.
Does Dr. Walter J. Liszewski do research?
Dr. Liszewski has worked on 2 clinical trials.
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