Yannis Sergio Guerra, M.D.
Endocrinology, Diabetes & Metabolism Physician · Chicago, IL
Yannis Sergio Guerra, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Chicago, Illinois, and NPI 1922193671, issued on Oct 4, 2006. Check the license (Illinois 036-115664, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Yannis Sergio Guerra
- Credential
- M.D.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License numbers
- 036-115664 IL
036115664 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1510S Halsted St, Chicago, IL 60607
- Phone
- (312) 380-9026
- Enumerated
- Oct 4, 2006
- Record last updated
- Apr 26, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20110418000784); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 436 in Illinois → Look up another NPI →
Verify Yannis Sergio Guerra 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 036-115664Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
815 Medicare Part D claims for 134 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 59% of claims.
Most prescribed
- Trulicity98 claims
- Jardiance48 claims
- Lantus Solostar42 claims
- Metformin Hcl32 claims
- Somatuline Depot31 claims
- Novolog Flexpen28 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 practice group's MIPS final score for 2023 (Medicare payment program): 84.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Cook CountyChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Yannis Sergio Guerra among 436 endocrinology, diabetes & metabolism physician records in Illinois
Yannis Sergio Guerra, M.D. is one of 436 endocrinology, diabetes & metabolism 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 62% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1998 · median 2006 among the 295 with a school on file
- Record last updated2021 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Illinois
There are 436 endocrinology, diabetes & metabolism physician records in Illinois.
All 436 in Illinois → Every provider in Chicago → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Paula Butler, M.D.Chicago, IL 606081427041482
- Maguy Chiha, M.D.Chicago, IL 606081073705042
- Rea HarxhiChicago, IL 606081457979833
- Andriy HavrylyanChicago, IL 606081730560517
- Elizabeth Lowden, M.D.Chicago, IL 606061568783991
- Emily Smith, M.D.Chicago, IL 606061386906089
- Grazia Aleppo, MDChicago, IL 606111689603268
- Grant Barish, M.D.Chicago, IL 606111265526073
Common questions
What is Yannis Sergio Guerra, M.D.'s NPI number?
Yannis Sergio Guerra, M.D.'s National Provider Identifier (NPI) is 1922193671, issued on Oct 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Yannis Sergio Guerra, M.D. located?
The NPPES record lists a practice address at 1510S Halsted St, Chicago, IL, 60607. Phone: (312) 380-9026. Providers update this record themselves, so call before visiting.
How can I verify Yannis Sergio Guerra, M.D.'s license?
NPPES lists Illinois license number 036-115664, 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 Yannis Sergio Guerra, M.D. prescribe under Medicare Part D?
In 2024, Yannis Sergio Guerra, M.D. had 815 Medicare Part D claims for 134 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
What is Yannis Sergio Guerra, M.D.'s MIPS final score?
The 2023 MIPS final score is 84.6 of 100, reported for the practice group. 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.