Derek De Mann, DO
Urology Physician · Hinsdale, IL
Derek De Mann, DO is a urology physician with a practice address in Hinsdale, Illinois, and NPI 1134681729, issued on Apr 2, 2019. Check the license (Illinois 036.171470, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Derek De Mann
- Credential
- DO
- Primary taxonomy
- Urology Physician 208800000X
- License number
- 036.171470 IL
Self-reported in NPPES; status is on the state search - Practice location
- 40 S Clay St Ste 200, Hinsdale, IL 60521
- Phone
- (630) 790-1221
- Enumerated
- Apr 2, 2019
- Record last updated
- Oct 2, 2024
- Fax
- (630) 653-1091
- Medicare enrollment
- Enrolled (PECOS I20240905001814); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest urology physician records → All 629 in Illinois → Look up another NPI →
Also registered at 40 S Clay St Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carlee CullensNurse Practitioner1194696310
- Abigail Digby, PA-CPhysician Assistant1356210264
- Amit Patel, MDUrology Physician1437324084
- Alexis Perez, PA-CPhysician Assistant1639936313
- Camryn Stephenson, PA-CPhysician Assistant1427876192
Verify Derek De Mann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036.171470Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average urology physician in 2024
247 Medicare Part D claims for 119 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 39 claims were for opioids.
Most prescribed
- Tamsulosin Hcl49 claims
- Finasteride40 claims
- Cephalexin21 claims
- Hydrocodone-Acetaminophen17 claims
- Tramadol Hcl15 claims
- Sulfamethoxazole-Trimethoprim12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $317.78
6 payments; by number, the most common kind was food and beverage; the largest payer was Urogen Pharma, Inc. The 9,340 providers of this specialty with any payment received $3,800.04 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Dupage Medical Group LtdNaperville, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Derek De Mann among 629 urology physician records in Illinois
Derek De Mann, DO is one of 629 urology physician records with a practice address in Illinois. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 81% of them.
- NPI issued2019 · 81% of these records are older, 17% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 54% of these records are
- Graduated2019 · median 2002 among the 341 with a school on file
- Record last updated2024 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Urology Physician providers in Illinois
There are 629 urology physician records in Illinois.
All 629 in Illinois → Every provider in Hinsdale → Urology Physician nationwide →
The 8 urology physician records with the nearest ZIP codes
- Joel Cornfield, MDHinsdale, IL 605211376543249
- Samuel Krengel, M.D.Hinsdale, IL 605211497755375
- John Kritsas, M.D.Hinsdale, IL 605211134129018
- Amit Patel, MDHinsdale, IL 605211437324084
- Arif Agha, MDOak Brook, IL 605231285711325
- Shaan Setia, MDOak Brook, IL 605231427410182
- Chirag Doshi, M.D.La Grange Highlands, IL 605251780078063
- Risha Foster, MDLa Grange Highlands, IL 605251376706630
Common questions
What is Derek De Mann, DO's NPI number?
Derek De Mann, DO's National Provider Identifier (NPI) is 1134681729, issued on Apr 2, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Derek De Mann, DO located?
The NPPES record lists a practice address at 40 S Clay St Ste 200, Hinsdale, IL, 60521. Phone: (630) 790-1221. Providers update this record themselves, so call before visiting.
How can I verify Derek De Mann, DO's license?
NPPES lists Illinois license number 036.171470, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Derek De Mann, DO prescribe under Medicare Part D?
In 2024, Derek De Mann, DO had 247 Medicare Part D claims for 119 beneficiaries; the average among urology physician prescribers was 1,340. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.