Marcus Stammen, DO
Dermatology Physician · Sycamore, IL
Marcus Stammen, DO is a dermatology physician with a practice address in Sycamore, Illinois, and NPI 1861070203, issued on Mar 29, 2021. Check the license (Illinois 036176359, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Marcus Stammen
- Credential
- DO
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- 036176359 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2530 Hauser Ross Dr Ste 100, Sycamore, IL 60178
- Phone
- (815) 766-9903
- Enumerated
- Mar 29, 2021
- Record last updated
- Aug 4, 2025
- Medicare enrollment
- Enrolled (PECOS I20250812004033); accepts Medicare assignment
- Medical or professional school
- Midwestern University, Chicago College Of Osteopathic Med, 2021
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 647 in Illinois → Look up another NPI →
Verify Marcus Stammen 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 036176359Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average dermatology physician in 2024
158 Medicare Part D claims for 65 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Triamcinolone Acetonide25 claims
- Ketoconazole18 claims
- Clobetasol Propionate17 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: $16.48
1 payment: food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 10,250 providers of this specialty with any payment received $8,544.61 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
- Central Dupage Physician GroupSycamore, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marcus Stammen among 647 dermatology physician records in Illinois
Marcus Stammen, DO is one of 647 dermatology physician records with a practice address in Illinois. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 85% of them.
- NPI issued2021 · 85% of these records are older, 11% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2021 · median 2008 among the 440 with a school on file
- Record last updated2025 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in Illinois
There are 647 dermatology physician records in Illinois.
All 647 in Illinois → Every provider in Sycamore → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Amanda Friedrichs, MDSycamore, IL 601781730281965
- Inderjit Gill, M.D.Sycamore, IL 601781083737985
- Rania Agha, M.D.Oakbrook Terrace, IL 601811366601312
- Virginia Allen, M.D.Oakbrook Terrace, IL 601811356423651
- Evan Johnson, M.D.St Charles, IL 601751407005218
- Lawrence Johnson, M.D.St Charles, IL 601751114015351
- Gunilla Carlsson Thorn, M.D.St Charles, IL 601741174779755
- Mona Gandhi, MDSt Charles, IL 601741942481940
Common questions
What is Marcus Stammen, DO's NPI number?
Marcus Stammen, DO's National Provider Identifier (NPI) is 1861070203, issued on Mar 29, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Marcus Stammen, DO located?
The NPPES record lists a practice address at 2530 Hauser Ross Dr Ste 100, Sycamore, IL, 60178. Phone: (815) 766-9903. Providers update this record themselves, so call before visiting.
How can I verify Marcus Stammen, DO's license?
NPPES lists Illinois license number 036176359, 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 Marcus Stammen, DO prescribe under Medicare Part D?
In 2024, Marcus Stammen, DO had 158 Medicare Part D claims for 65 beneficiaries; the average among dermatology physician prescribers was 797. 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.