Dr. Peter A. Lio, MD
- Medicare services, 2024
- 309
- Medicare patients, 2024
- 146
- Part D claims, 2024
- 154
- Publications
- 147
- Industry payments
- $2.9M
- Practice address
- 363 W Erie St, Chicago, IL 60654
- Practice phone
- Call (312) 995-1955
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Medical Dermatology Associates of Chicago, Ltd
Chicago, Illinois
Find Dr. Lio'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. Peter A. Lio is a dermatologist in Chicago, Illinois
Dr. Lio practices at Medical Dermatology Associates of Chicago, Ltd in Chicago, Illinois.
Dr. Lio's NPI, 1497787923, was assigned on July 7, 2006. Dr. Lio graduated from Harvard Medical School in 2001. Dr. Lio holds Illinois license 036120840.
- NPI
- 1497787923NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8921076696
- NPI enumeration date
- July 7, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (312) 995-1955
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Peter A. Lio practices at Medical Dermatology Associates of Chicago, Ltd in Chicago, Illinois
Dr. Lio's primary practice is Medical Dermatology Associates of Chicago, Ltd, at 363 W Erie St, Chicago, IL 60654 in Cook County. The practice phone is (312) 995-1955.
- Medical Dermatology Associates of Chicago, Ltd363 W Erie St, Chicago, IL 60654 · Cook CountyPhone(312) 995-1955
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Peter A. Lio is affiliated with 2 sites of care and 1 medical group
Dr. Lio's primary practice is Medical Dermatology Associates of Chicago, Ltd in Chicago, Illinois. The medical group on file is Medical Dermatology Associates of Chicago. Dmand AI also links Dr. Lio to 1 more group practice or clinic, 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. Peter A. Lio's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lio practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Medical Dermatology Associates of Chicago, Ltd | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Peter A. Lio is one of 564 dermatologists in Illinois
Dermatology is Dr. Lio's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dmand AI has Dr. Lio's licenses on file in 2 states: Illinois and Massachusetts.
Specialties and state licenses
- Dermatology, IllinoisPrimary
- Massachusetts license
Dermatologists near Dr. Lio
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. Peter A. Lio billed Medicare for 309 services in 2024
CMS data shows 309 Medicare services from Dr. Lio across 8 procedure codes in 2024, for 146 Medicare patients. Medicare paid $21,519 for them. Every service was in an office.
Dr. Lio's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1062024: 233120%
- Surgery
- 2023: 172024: 76347%
Dr. Lio compared with the Illinois median for dermatologists, 2024
- Dr. Lio
- Illinois median
- Medicare services
- 309vs 1,77983% below
- Medicare patients
- 146vs 49170% below
- Part D claims
- 83vs 40580% below
Medians across 526 dermatologists in Illinois with Dmand AI profiles that report each measure.
Dr. Lio'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. Peter A. Lio treated 146 Medicare patients in 2024, average age 74
CMS counts 146 Medicare patients who saw Dr. Lio in 2024. The largest group is 75 to 84, with 66 patients. 71% of them have high cholesterol, and 56% have high blood pressure. Their average risk score is 0.98, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Lio's median patient age at 28, with 58% women.
Dr. Lio's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Lio's Medicare patients by sex, 2024
- Women9162%
- Men5538%
Chronic conditions among Dr. Lio's Medicare patients, 2024
- High cholesterol71%
- High blood pressure56%
- Arthritis50%
- Anxiety23%
- Osteoporosis21%
- Mood disorders19%
- Cancer18%
- Ischemic heart disease17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lio's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 28
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Peter A. Lio wrote 154 Medicare Part D claims in 2024
In 2024, Dr. Lio wrote 154 Medicare Part D claims for 40 patients. 58% of them were for generic drugs. CMS names the drug for 83 of them, across 5 drugs with 11 or more claims each, at $230,851 in total drug cost. In 2023, CMS named 74 claims across 4 drugs.
Dr. Lio's Part D claims by kind of drug, 2024
- Generic90 claims58%
- Brand-name64 claims42%
Dr. Lio'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: 742024: 8312%
Drugs named by CMS: 5 in 2024, 4 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. Peter A. Lio ranks in the 74th percentile for removal of skin lesions in Medicare
Dr. Lio accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 83 procedures of removal of skin lesions by Dr. Lio, more than 74% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Lio ranks in Medicare procedure volume
- Removal of skin lesions
- 74th percentile83 procedures
- Skin biopsy
- 66th percentile35 procedures
- Removal or shaving of skin growth
- 66th percentile13 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. Peter A. Lio has 147 publications on record
Dmand AI links 147 papers to Dr. Lio, published from 2017 to 2025. 2024 was the busiest year, with 25. The most frequent topics are Dermatitis, Atopic, Dermatologic Agents and Skin. Dr. Lio has published most often in J Drugs Dermatol. Dr. Lio's most frequent co-authors are Eric Lawrence Simpson, MD, Vivian Y. Shi, MD and Lawrence F. Eichenfield, MD.
Dr. Lio's papers by year, 2017 to 2025
Topics Dr. Lio writes about most
- Dermatitis, Atopic
- Dermatologic Agents
- Skin
- Administration, Cutaneous
- Dermatology
- Pruritus
- Antibodies, Monoclonal, Humanized
- Eczema
Dr. Lio's most frequent co-authors
- Eric Lawrence Simpson, MD13 shared papers
- Vivian Y. Shi, MD9 shared papers
- Lawrence F. Eichenfield, MD8 shared papers
Recent publications by Dr. Lio
Pediatr Dermatol
See who Dr. Lio researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Lio works with, so you can find a warm path to the right dermatologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Peter A. Lio received $2,863,480 in industry payments from 2016 to 2025
CMS Open Payments shows 2,949 general payments to Dr. Lio from 55 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 66% of the total. Sanofi and Genzyme US Companies paid the most, $671,627. It also lists 36 research payments totaling $31,479 from 2017 to 2025, naming 1 clinical trial.
General payments to Dr. Lio by program year, 2016 to 2025
General payments to Dr. Lio by kind, 2016 to 2025
- Speaker and faculty fees$1,899,18866%
- Consulting fees$614,08622%
- Travel and lodging$250,6879%
- Food and beverage$48,7452%
- Other$43,3102%
Companies that paid Dr. Lio the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Peter A. Lio graduated from Harvard Medical School
Dr. Lio graduated from Harvard Medical School in 2001.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Peter A. Lio'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) |
| 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. Peter A. Lio
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. Peter A. Lio's NPI number?
Dr. Peter A. Lio's NPI number is 1497787923. It was assigned on July 7, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Peter A. Lio?
Dr. Peter A. Lio is a dermatologist in Chicago, Illinois. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. Peter A. Lio practice?
Dr. Lio practices at 363 W Erie St, Chicago, IL 60654. Dr. Lio's primary practice is Medical Dermatology Associates of Chicago, Ltd in Chicago, Illinois. Dmand AI also links Dr. Lio to 1 group practice or clinic.
What is Dr. Peter A. Lio's office phone number?
The practice phone on file for Dr. Lio is (312) 995-1955.
What is Dr. Peter A. Lio's medical license number?
Dr. Lio holds Illinois license 036120840, one of the licenses on file in 2 states.
Which states has Dr. Peter A. Lio been licensed in?
Dmand AI has state licenses on file for Dr. Lio in Illinois and Massachusetts.
What medical group is Dr. Peter A. Lio part of?
Dr. Lio is linked to Medical Dermatology Associates of Chicago.
Does Dr. Peter A. Lio accept Medicare?
Yes. CMS data shows Dr. Lio billed Medicare for 309 services in 2024, and Dr. Lio accepts Medicare assignment.
How many Medicare patients does Dr. Peter A. Lio see?
CMS counts 146 Medicare patients who saw Dr. Lio in 2024, with an average age of 74.
What services does Dr. Peter A. Lio bill to Medicare?
In 2024, Dr. Lio's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and surgery: skin and soft tissue (17000).
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Where did Dr. Peter A. Lio go to medical school?
Dr. Lio graduated from Harvard Medical School in 2001.
What drugs does Dr. Peter A. Lio prescribe most?
In 2024 Medicare Part D data, Dr. Lio's most prescribed drugs by claims were Dupixent Syringe, Mupirocin and Rinvoq.
Has Dr. Peter A. Lio received payments from drug or device companies?
CMS Open Payments shows $2,863,480 in general payments to Dr. Lio from 55 companies from 2016 to 2025. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. Peter A. Lio been practicing?
Dr. Lio graduated from medical school in 2001, 25 years ago.
Does Dr. Peter A. Lio do research?
Dmand AI links 147 publications to Dr. Lio, published from 2017 to 2025.
Who does Dr. Peter A. Lio publish with?
Dr. Lio's most frequent co-authors are Eric Lawrence Simpson, MD (13 shared papers), Vivian Y. Shi, MD (9 shared papers) and Lawrence F. Eichenfield, MD (8 shared papers).
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