Carl Joseph Gustas, DO
Family Medicine Physician · Chicago, IL
Carl Joseph Gustas, DO is a family medicine physician with a practice address in Chicago, Illinois, and NPI 1194773036, issued on May 4, 2006. Check the license (Illinois 36112922, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Carl Joseph Gustas
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 36112922 IL
Self-reported in NPPES; status is on the state search - Practice location
- 600 W Adams St, Chicago, IL 60661
- Phone
- (312) 506-0900
- Enumerated
- May 4, 2006
- Record last updated
- May 20, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20060315000044); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 600 W Adams St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Gomez, PA-CPhysician Assistant1023724101
- Kayla Larson, PA-CPhysician Assistant1588183545
Verify Carl Joseph Gustas 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 36112922Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average family medicine physician in 2024
366 Medicare Part D claims for 278 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Ipratropium Bromide86 claims
- Doxycycline Hyclate31 claims
- Amoxicillin-Clavulanate Potass24 claims
- Meloxicam23 claims
- Mupirocin16 claims
- Azithromycin14 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): 94.1 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
- Northwestern Medical Faculty FoundationChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Carl Joseph Gustas among 6,215 family medicine physician records in Illinois
Carl Joseph Gustas, DO is one of 6,215 family medicine physician records with a practice address in Illinois. 78% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1999 · median 2006 among the 3,714 with a school on file
- Record last updated2011 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,593 family medicine physician records list a practice address in Chicago
They are 1,593 of the 63,379 NPPES records with a practice address in Chicago, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Chicago → Family Medicine Physician nationwide →
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Common questions
What is Carl Joseph Gustas, DO's NPI number?
Carl Joseph Gustas, DO's National Provider Identifier (NPI) is 1194773036, issued on May 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Carl Joseph Gustas, DO located?
The NPPES record lists a practice address at 600 W Adams St, Chicago, IL, 60661. Phone: (312) 506-0900. Providers update this record themselves, so call before visiting.
How can I verify Carl Joseph Gustas, DO's license?
NPPES lists Illinois license number 36112922, 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 Carl Joseph Gustas, DO prescribe under Medicare Part D?
In 2024, Carl Joseph Gustas, DO had 366 Medicare Part D claims for 278 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Carl Joseph Gustas, DO's MIPS final score?
The 2023 MIPS final score is 94.1 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.