Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Ahmad Marwan Nassar, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1861988222

Dr. Ahmad Marwan Nassar, MD practises Hematology/Oncology in Chicago, Illinois. Qualified in 2015, 11 years ago. Practices with The Emory Clinic Inc, a 3,500-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Georgia.

Years since qualifying
11
Licensed in
GA
In the registry since
2018
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Chicago, IL

No coordinates on file. Search this address in Google Maps

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 104596 (GA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1861988222
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 9, 2018
Last updated in NPPESMay 20, 2025
Certification dateMay 20, 2025

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice The Emory Clinic Inc — 3500 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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.

Food and Beverage $120 2 payments · a meal or drink at a meeting or visit, not a fee
Education $100 1 payment · educational material or training, 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 The Emory Clinic Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3500 clinicians in the practice; 12 are shown here.

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