Douglas Edward Merkel, MD
Medical Oncology Physician · Evanston, IL
Douglas Edward Merkel, MD is a medical oncology physician with a practice address in Evanston, Illinois, and NPI 1235156811, issued on Jul 17, 2006. Check the license (Illinois 036065572, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Douglas Edward Merkel
- Credential
- MD
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- 036065572 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2650 Ridge Ave, Evanston, IL 60201
- Phone
- (847) 570-2112
- Enumerated
- Jul 17, 2006
- Record last updated
- Oct 6, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (847) 570-1041
- Medicare enrollment
- Enrolled (PECOS I20050825000649); accepts Medicare assignment
- Medical or professional school
- Northwestern University Feinberg Medical School, 1981
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 182 in Illinois → Look up another NPI →
Also registered at 2650 Ridge Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Douglas Edward Merkel 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 036065572Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.1 times the Medicare Part D claims of the average medical oncology physician in 2024
2,150 Medicare Part D claims for 466 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. 38 claims were for opioids.
Most prescribed
- Anastrozole715 claims
- Letrozole450 claims
- Tamoxifen Citrate126 claims
- Exemestane96 claims
- Kisqali74 claims
- Ibrance67 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.
The MIPS final score for 2023 (Medicare payment program): 93.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Endeavor Health Medical GroupGlenview, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Douglas Edward Merkel among 182 medical oncology physician records in Illinois
Douglas Edward Merkel, MD is one of 182 medical oncology physician records with a practice address in Illinois. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 43% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated1981 · median 2000 among the 132 with a school on file
- Record last updated2020 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in Illinois
There are 182 medical oncology physician records in Illinois.
All 182 in Illinois → Every provider in Evanston → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Ami Badami, M.D.Evanston, IL 602011073959565
- Bruce Brockstein, MDEvanston, IL 602011740349695
- Nicholas Campbell, MDEvanston, IL 602011942445648
- Thomas Hensing, MDEvanston, IL 602011932132743
- Marisa Hill, MDEvanston, IL 602011639388226
- Janardan Khandekar, MDEvanston, IL 602011851324503
- Richard Knop, MDEvanston, IL 602011629094958
- Gershon Locker, MDEvanston, IL 602011134145469
Common questions
What is Douglas Edward Merkel, MD's NPI number?
Douglas Edward Merkel, MD's National Provider Identifier (NPI) is 1235156811, issued on Jul 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Douglas Edward Merkel, MD located?
The NPPES record lists a practice address at 2650 Ridge Ave, Evanston, IL, 60201. Phone: (847) 570-2112. Providers update this record themselves, so call before visiting.
How can I verify Douglas Edward Merkel, MD's license?
NPPES lists Illinois license number 036065572, 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 Douglas Edward Merkel, MD prescribe under Medicare Part D?
In 2024, Douglas Edward Merkel, MD had 2,150 Medicare Part D claims for 466 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.
What is Douglas Edward Merkel, MD's MIPS final score?
The 2023 MIPS final score is 93.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.