Carmen Gnatenco, M.D.
Internal Medicine Physician · Oak Lawn, IL
Carmen Gnatenco, M.D. is an internal medicine physician with a practice address in Oak Lawn, Illinois, and NPI 1043363708, issued on Jan 18, 2007. Check the license (Illinois 036-115290, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Carmen Gnatenco
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036-115290 IL
Self-reported in NPPES; status is on the state search - Practice location
- 4938 W 95TH St, Oak Lawn, IL 60453
- Phone
- (708) 425-4662
- Enumerated
- Jan 18, 2007
- Record last updated
- Aug 24, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (708) 425-4692
- Medicaid ID
- 036115290 IL
- Medicare enrollment
- Enrolled (PECOS I20070404000519); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 4938 W 95TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Beck, MD SCSpecialist1346388774
- Sujell Vargas, NPFamily Nurse Practitioner1871260828
Verify Carmen Gnatenco 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 036-115290Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,843 Medicare Part D claims for 283 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 113 claims were for opioids.
Most prescribed
- Furosemide129 claims
- Losartan Potassium129 claims
- Levothyroxine Sodium124 claims
- Alprazolam109 claims
- Metoprolol Succinate95 claims
- Pantoprazole Sodium91 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): 18.6 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).
Carmen Gnatenco among 7,238 internal medicine physician records in Illinois
Carmen Gnatenco, M.D. is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 39% of them.
- NPI issued2007 · 39% of these records are older, 55% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated1995 · median 2003 among the 3,580 with a school on file
- Record last updated2020 · 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 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
173 internal medicine physician records list a practice address in Oak Lawn
They are 173 of the 2,993 NPPES records with a practice address in Oak Lawn, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Oak Lawn → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Robert Chalupczak, M.D.Oak Lawn, IL 604531679505051
- Anupam Goel, MDOak Lawn, IL 604531013957570
- Joseph Kowalczyk, MDOak Lawn, IL 604531831166255
- Vinay Kumar, MDOak Lawn, IL 604531639138217
- Eugene Muzykansky, MDOak Lawn, IL 604531457328874
- Win Myint, MDOak Lawn, IL 604531063412062
- Robert Raines, MDOak Lawn, IL 604531164499596
- Mark Reiter, M.D.Oak Lawn, IL 604531902864408
Common questions
What is Carmen Gnatenco, M.D.'s NPI number?
Carmen Gnatenco, M.D.'s National Provider Identifier (NPI) is 1043363708, issued on Jan 18, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Carmen Gnatenco, M.D. located?
The NPPES record lists a practice address at 4938 W 95TH St, Oak Lawn, IL, 60453. Phone: (708) 425-4662. Providers update this record themselves, so call before visiting.
How can I verify Carmen Gnatenco, M.D.'s license?
NPPES lists Illinois license number 036-115290, 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 Carmen Gnatenco, M.D. prescribe under Medicare Part D?
In 2024, Carmen Gnatenco, M.D. had 2,843 Medicare Part D claims for 283 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Carmen Gnatenco, M.D.'s MIPS final score?
The 2023 MIPS final score is 18.6 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.