Dr. Derek W. De Mann, DO
- Medicare services, 2024
- 236
- Medicare patients, 2024
- 105
- Part D claims, 2024
- 247
- Publications
- 3
- Hospital affiliations
- 3
- Practice address
- 430-54 Pennsylvania Ave, Glen Ellyn, IL 60137
- Practice phone
- Call (630) 469-9200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Duly Health and Care
Glen Ellyn, Illinois
Find Dr. De Mann'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. Derek W. De Mann is a urologist in Glen Ellyn, Illinois
Dr. De Mann practices at Duly Health and Care in Glen Ellyn, Illinois.
Dr. De Mann's NPI, 1134681729, was assigned on April 2, 2019. Dr. De Mann holds Illinois license 036.171470.
- NPI
- 1134681729NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4688088404
- NPI enumeration date
- April 2, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (630) 469-9200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Derek W. De Mann practices at Duly Health and Care in Glen Ellyn, Illinois
Dr. De Mann's primary practice is Duly Health and Care, at 430-54 Pennsylvania Ave, Glen Ellyn, IL 60137 in Dupage County. The practice phone is (630) 469-9200.
- Duly Health and Care430-54 Pennsylvania Ave, Glen Ellyn, IL 60137 · Dupage CountyPhone(630) 469-9200
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Derek W. De Mann is affiliated with 6 sites of care and 1 medical group
Dr. De Mann's primary practice is Duly Health and Care in Glen Ellyn, Illinois. Dr. De Mann is also affiliated with Edward Hospital. The medical group on file is DuPage Medical Group. Dmand AI also links Dr. De Mann to 2 more hospitals, 1 group practice or clinic and 1 therapy and rehab clinic, each named with a free account. Dr. De Mann's employer is on file too: a physical therapy & rehab clinic.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Derek W. De Mann's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. De Mann practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Duly Health and Care | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Derek W. De Mann is one of 513 urologists in Illinois
Urology is Dr. De Mann's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. De Mann is licensed in Illinois.
Specialties and state licenses
- Urology, IllinoisPrimary
Urologists near Dr. De Mann
Counts of urologists 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. Derek W. De Mann billed Medicare for 236 services in 2024
CMS data shows 236 Medicare services from Dr. De Mann across 6 procedure codes in 2024, for 105 Medicare patients. Medicare paid $14,161 for them.
Dr. De Mann's Medicare services by type, 2024
- Office and hospital visits129
- Surgery62
- Lab and pathology45
Where Dr. De Mann's Medicare services took place, 2024
- In an office19081%
- In a facility4619%
Dr. De Mann compared with the Illinois median for urologists, 2024
- Dr. De Mann
- Illinois median
- Medicare services
- 236vs 1,32382% below
- Medicare patients
- 105vs 49079% below
- Part D claims
- 154vs 35857% below
Medians across 498 urologists in Illinois with Dmand AI profiles that report each measure.
Dr. De Mann'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.
Need commercial claims for Dr. De Mann?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. De Mann and other urologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Derek W. De Mann treated 105 Medicare patients in 2024, average age 76
CMS counts 105 Medicare patients who saw Dr. De Mann in 2024. The largest group is 65 to 74, with 43 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 13% are also on Medicaid. Their average risk score is 1.75, 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. De Mann's median patient age at 70, with 22% women.
Dr. De Mann's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. De Mann's Medicare patients by sex, 2024
- Women3029%
- Men7571%
Chronic conditions among Dr. De Mann's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis44%
- Ischemic heart disease41%
- Diabetes38%
- Chronic kidney disease33%
- COPD30%
- Heart failure30%
Share of Medicare patients with each condition. A patient can have several.
Dr. De Mann's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women22%
- Men76%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Derek W. De Mann wrote 247 Medicare Part D claims in 2024
In 2024, Dr. De Mann wrote 247 Medicare Part D claims for 119 patients. 94% of them were for generic drugs. CMS names the drug for 154 of them, across 6 drugs with 11 or more claims each, at $1,003 in total drug cost. In 2023, CMS named 93 claims across 5 drugs.
Dr. De Mann's Part D claims by kind of drug, 2024
- Generic231 claims94%
- Brand-name16 claims6%
Dr. De Mann'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. De Mann's Part D claims, 2024
- Opioids16%39 of 247 claims
- Antibiotics18%45 of 247 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: 932024: 15466%
Drugs named by CMS: 6 in 2024, 5 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. Derek W. De Mann takes part in Medicare
Dr. De Mann accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Prostate resection: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Derek W. De Mann has 3 publications on record
Dmand AI links 3 papers to Dr. De Mann, published from 2015 to 2023. 2023 was the busiest year, with 2. Dr. De Mann's most frequent co-authors are Uzoma Arnold Anele, MD and Michael Louis Keil, DO.
Dr. De Mann's most frequent co-authors
Recent publications by Dr. De Mann
See who Dr. De Mann researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. De Mann works with, so you can find a warm path to the right urologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Derek W. De Mann received $1,101 in industry payments from 2023 to 2025
CMS Open Payments shows 27 general payments to Dr. De Mann from 13 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $330.
General payments to Dr. De Mann by program year, 2023 to 2025
Companies that paid Dr. De Mann the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Derek W. De Mann'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) |
| 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. Derek W. De Mann
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. Derek W. De Mann's NPI number?
Dr. Derek W. De Mann's NPI number is 1134681729. It was assigned on April 2, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Derek W. De Mann?
Dr. Derek W. De Mann is a urologist in Glen Ellyn, Illinois. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. Derek W. De Mann practice?
Dr. De Mann practices at 430-54 Pennsylvania Ave, Glen Ellyn, IL 60137. Dr. De Mann's primary practice is Duly Health and Care in Glen Ellyn, Illinois. Dmand AI also links Dr. De Mann to 2 hospitals, 1 group practice or clinic and 1 therapy and rehab clinic.
What is Dr. Derek W. De Mann's office phone number?
The practice phone on file for Dr. De Mann is (630) 469-9200.
What is Dr. Derek W. De Mann's medical license number?
Dr. De Mann holds Illinois license 036.171470.
Which hospitals is Dr. Derek W. De Mann affiliated with?
Dr. De Mann is affiliated with Edward Hospital. Dmand AI links Dr. De Mann to 2 more hospitals.
What medical group is Dr. Derek W. De Mann part of?
Dr. De Mann is linked to DuPage Medical Group.
Does Dr. Derek W. De Mann accept Medicare?
Yes. CMS data shows Dr. De Mann billed Medicare for 236 services in 2024, and Dr. De Mann accepts Medicare assignment.
How many Medicare patients does Dr. Derek W. De Mann see?
CMS counts 105 Medicare patients who saw Dr. De Mann in 2024, with an average age of 76.
What services does Dr. Derek W. De Mann bill to Medicare?
In 2024, Dr. De Mann's most billed Medicare services were surgery: urinary system (51798), lab and pathology test (81003) and office visit, established patient (99214).
Show 5 more questionsShow fewer questions
What drugs does Dr. Derek W. De Mann prescribe most?
In 2024 Medicare Part D data, Dr. De Mann's most prescribed drugs by claims were Tamsulosin HCl, Finasteride and Cephalexin.
Has Dr. Derek W. De Mann received payments from drug or device companies?
CMS Open Payments shows $1,101 in general payments to Dr. De Mann from 13 companies from 2023 to 2025. The largest total came from Boston Scientific Corporation.
How long has Dr. Derek W. De Mann been practicing?
Dr. De Mann graduated from medical school in 2019, 7 years ago.
Does Dr. Derek W. De Mann do research?
Dmand AI links 3 publications to Dr. De Mann, published from 2015 to 2023.
Who does Dr. Derek W. De Mann publish with?
Dr. De Mann's most frequent co-authors are Uzoma Arnold Anele, MD (1 shared paper) and Michael Louis Keil, DO (1 shared paper).
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