Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Jonathan Grinstein

Individual provider Advanced Heart Failure and Transplant Cardiology Physician · NPI 1396065249

Jonathan Grinstein practises Advanced Heart Failure and Transplant Cardiology in Chicago, Illinois. Graduated from University of Chicago, Pritzker School of Medicine in 2010, 16 years ago. Practices with University of Chicago, a 1,681-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
16
Trained at
University of Chicago, Pritzker School of Medicine
Licensed in
IL
In the registry since
2010
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Practice location Address checks out

5841 S Maryland Ave
Chicago, IL 60637-1443
Phone: (888) 824-0200
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Advanced Heart Failure and Transplant Cardiology Physician (primary) Taxonomy 207RA0001X · Licence 036132176 (IL)

Record details

NPI number1396065249
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJune 2, 2010
Last updated in NPPESOctober 24, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyADVANCED HEART FAILURE AND TRANSPLANT CARDIOLOGY
Medical schoolUNIVERSITY OF CHICAGO, PRITZKER SCHOOL OF MEDICINE
Graduated 2010 (16 years in practice)
Group practice University Of Chicago — 1681 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients873
Services billed 1,334 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Consulting Fee $26,785 21 payments
Travel and Lodging $10,218 27 payments · travel or lodging paid or reimbursed, such as to attend a conference
Compensation for serving as faculty or as a speaker for a medical education program $8,938 2 payments
Food and Beverage $1,978 22 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at University of Chicago

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1681 clinicians in the practice; 12 are shown here.

Other providers in Chicago