Todd Guynn, M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Chicago, IL
Todd Guynn, M.D. is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Chicago, Illinois, and NPI 1578559068, issued on Sep 21, 2005. Check the license (Illinois 036-084979, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Todd Guynn
- Credential
- M.D.
- Primary taxonomy
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
- License number
- 036-084979 IL
Self-reported in NPPES; status is on the state search - Practice location
- 3000 N Halsted St, Chicago, IL 60657
- Phone
- (630) 324-7920
- Enumerated
- Sep 21, 2005
- Record last updated
- Feb 14, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040316000524); accepts Medicare assignment
- Medical or professional school
- Rush Medical College Of Rush University, 1995
- Entity
- Type 1 · individual
8 nearest thoracic surgery (cardiothoracic vascular surgery) physician records → All 265 in Illinois → Look up another NPI →
Also registered at 3000 N Halsted St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Todd Guynn 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 036-084979Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% more Medicare Part D claims than the average thoracic surgery (cardiothoracic vascular surgery) physician in 2024
116 Medicare Part D claims for 36 beneficiaries, against an average of 101 among the 2,587 providers of this specialty who prescribed in Part D. 20 claims were for opioids.
Most prescribed
- Metoprolol Tartrate16 claims
- Gabapentin12 claims
- Hydrocodone-Acetaminophen11 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.
Industry payments in 2024: $308.82
6 payments; by number, the most common kind was food and beverage; the largest payer was Abiomed. The 4,047 providers of this specialty with any payment received $7,828.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 3 group practices
- Agnesian Healthcare IncFond Du Lac, WI
- Cardiac Surgery Associates SCNaperville, IL
- Genesis Health SystemDavenport, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Todd Guynn among 265 thoracic surgery (cardiothoracic vascular surgery) physician records in Illinois
Todd Guynn, M.D. is one of 265 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in Illinois. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 87% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated1995 · median 1999 among the 148 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 208G00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in Illinois
There are 265 thoracic surgery (cardiothoracic vascular surgery) physician records in Illinois.
All 265 in Illinois → Every provider in Chicago → Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationwide →
The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes
- Walter Barker, M.D.Chicago, IL 606571952744823
- William Bradshaw, M.D.Chicago, IL 606571588637953
- Robert Breyer, MDChicago, IL 606571992777445
- Ashokkumar Doshi, M.D.Chicago, IL 606561982670709
- Cosmin Dobrescu, M.D.Chicago, IL 606471194773754
- Balasubramaniam Iyer, MDChicago, IL 606401497890750
- Faisal Alshamdin, MDChicago, IL 606371831914720
- Ernest ChanChicago, IL 606371467802371
Common questions
What is Todd Guynn, M.D.'s NPI number?
Todd Guynn, M.D.'s National Provider Identifier (NPI) is 1578559068, issued on Sep 21, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Todd Guynn, M.D. located?
The NPPES record lists a practice address at 3000 N Halsted St, Chicago, IL, 60657. Phone: (630) 324-7920. Providers update this record themselves, so call before visiting.
How can I verify Todd Guynn, M.D.'s license?
NPPES lists Illinois license number 036-084979, 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 Todd Guynn, M.D. prescribe under Medicare Part D?
In 2024, Todd Guynn, M.D. had 116 Medicare Part D claims for 36 beneficiaries; the average among thoracic surgery (cardiothoracic vascular surgery) physician prescribers was 101. 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.