John William Gatti
Cardiovascular Disease Physician · Chicago, IL
John William Gatti is a cardiovascular disease physician with a practice address in Chicago, Illinois, and NPI 1043715246, issued on Mar 28, 2018. Check the license (Illinois 036.174153, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- John William Gatti
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 036.174153 IL
Self-reported in NPPES; status is on the state search - Practice location
- 5841 S Maryland Ave Ste MC6080, Chicago, IL 60637
- Phone
- (773) 702-9461
- Enumerated
- Mar 28, 2018
- Record last updated
- Jun 12, 2025
- Fax
- (773) 702-4183
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 1,073 in Illinois → Look up another NPI →
Also registered at 5841 S Maryland Ave Ste MC6080
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Siddharth Bhayani, MDInternal Medicine Physician1639755077
- Anne Marie Bonaguro, DOCardiovascular Disease Physician1073132536
- Kevin Chang, MDInternal Medicine Physician1518359298
- Alex ChoyStudent in an Organized Health Care Education/Training Program1154819738
- Christopher Fernandez, MDCardiovascular Disease Physician1578024840
- Leo Gozdecki, DOAdvanced Heart Failure and Transplant Cardiology Physician1649632118
Verify John William Gatti 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 036.174153Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
97 Medicare Part D claims for 11 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Amlodipine Besylate11 claims
- Atorvastatin Calcium11 claims
- Nitroglycerin11 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: $191.80
11 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 16,686 providers of this specialty with any payment received $3,819.56 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.
John William Gatti among 1,073 cardiovascular disease physician records in Illinois
John William Gatti is one of 1,073 cardiovascular disease 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 2018, is newer than 84% of them.
- NPI issued2018 · 84% of these records are older, 13% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2025 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in Illinois
There are 1,073 cardiovascular disease physician records in Illinois.
All 1,073 in Illinois → Every provider in Chicago → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Francis AlenghatChicago, IL 606371073633038
- Sonal Chandra, M.D.Chicago, IL 606371518276872
- Michael DavidsonChicago, IL 606371023033321
- Jeanne DecaraChicago, IL 606371972665438
- James LiaoChicago, IL 606371689687873
- Aalap Narichania, M.D.Chicago, IL 606371144665266
- Sandeep NathanChicago, IL 606371225054588
- Jonathan PaulChicago, IL 606371134358146
Common questions
What is John William Gatti's NPI number?
John William Gatti's National Provider Identifier (NPI) is 1043715246, issued on Mar 28, 2018. An NPI identifies a provider in billing; it is not a license.
Where is John William Gatti located?
The NPPES record lists a practice address at 5841 S Maryland Ave Ste MC6080, Chicago, IL, 60637. Phone: (773) 702-9461. Providers update this record themselves, so call before visiting.
How can I verify John William Gatti's license?
NPPES lists Illinois license number 036.174153, 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 John William Gatti prescribe under Medicare Part D?
In 2024, John William Gatti had 97 Medicare Part D claims for 11 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.