Karen M. Duenas Ruiz, MD
Adult Medicine Physician · Chicago, IL
Karen M. Duenas Ruiz, MD is an adult medicine physician with a practice address in Chicago, Illinois, and NPI 1972181345, issued on Mar 29, 2021. Check the license (Illinois 036.170712, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Karen M. Duenas Ruiz
- Credential
- MD
- Primary taxonomy
- Adult Medicine Physician 207QA0505X
- License numbers
- 036.170712 IL
186665 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2434 W Division St, Chicago, IL 60622
- Phone
- (773) 584-4178
- Enumerated
- Mar 29, 2021
- Record last updated
- Jul 24, 2024
- Medicare enrollment
- Enrolled (PECOS I20240807002445); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2021
- Entity
- Type 1 · individual
8 nearest adult medicine physician records → All 72 in Illinois → Look up another NPI →
Also registered at 2434 W Division St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Liliya Panyshkevych, APNFamily Nurse Practitioner1750741864
- Miranda Robles, LSWClinical Social Worker1225825961
- Jannele Rowe, APRNFamily Nurse Practitioner1508415241
- Vanessa Sarda, M.D.Infectious Disease Physician1790960078
- Elmira Thomas, APNAdult Health Nurse Practitioner1871095109
- Carlos Zambrano, MDInfectious Disease Physician1639139272
Verify Karen M. Duenas Ruiz 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 036.170712Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average adult medicine physician in 2024
339 Medicare Part D claims for 55 beneficiaries, against an average of 3,002 among the 1,307 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium45 claims
- Metformin Hcl26 claims
- Gabapentin21 claims
- Losartan Potassium18 claims
- Lisinopril17 claims
- Levothyroxine Sodium12 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.
Bills Medicare through one group practice
- Pcc Community Wellness CenterOak Park, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen M. Duenas Ruiz among 72 adult medicine physician records in Illinois
Karen M. Duenas Ruiz, MD is one of 72 adult medicine physician records with a practice address in Illinois. 56% 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 83% of them.
- NPI issued2021 · 83% of these records are older, 11% newer
- In a Medicare fileYes · 56% of these records are
- In the CMS Doctors and Clinicians fileYes · 42% of these records are
- Graduated2021 · median 2004 among the 30 with a school on file
- Record last updated2024 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0505X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Medicine Physician providers in Illinois
There are 72 adult medicine physician records in Illinois.
All 72 in Illinois → Every provider in Chicago → Adult Medicine Physician nationwide →
The 8 adult medicine physician records with the nearest ZIP codes
- Percy May, M.D.Chicago, IL 606241588694343
- Ramon Mella, MDChicago, IL 606241477543692
- Dorian Finder, M.D.Chicago, IL 606171801841127
- James Achebe, MDChicago, IL 606281881793552
- Carl Vancol, MDChicago, IL 606281245222454
- Nathan Navarro, MDChicago, IL 606151508516865
- John Walton, MDChicago, IL 606151245895507
- Gary Bucher, MDChicago, IL 606141770664856
Common questions
What is Karen M. Duenas Ruiz, MD's NPI number?
Karen M. Duenas Ruiz, MD's National Provider Identifier (NPI) is 1972181345, issued on Mar 29, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Karen M. Duenas Ruiz, MD located?
The NPPES record lists a practice address at 2434 W Division St, Chicago, IL, 60622. Phone: (773) 584-4178. Providers update this record themselves, so call before visiting.
How can I verify Karen M. Duenas Ruiz, MD's license?
NPPES lists Illinois license number 036.170712, 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 Karen M. Duenas Ruiz, MD prescribe under Medicare Part D?
In 2024, Karen M. Duenas Ruiz, MD had 339 Medicare Part D claims for 55 beneficiaries; the average among adult medicine physician prescribers was 3,002. 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.