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

Robert A Bayer, MD

Individual provider Hematology & Oncology Physician · NPI 1669527818

Robert A Bayer, MD is a Hematology/Oncology in Geneva, Illinois. Graduated from Northwestern University Feinberg Medical School in 1984, 42 years ago. Practices with Northwestern Medical Faculty Foundation, a 4,394-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
42
Trained at
Northwestern University Feinberg Medical School
Licensed in
IL
In the registry since
2007
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

351 Delnor Dr
Geneva, IL 60134-4220
Phone: (630) 232-0610
Fax: (630) 232-0675
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 036073155 (IL)

Record details

NPI number1669527818
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 25, 2007
Last updated in NPPESApril 1, 2013
Mailing address351 Delnor Dr, Geneva, IL 60134-4220

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolNORTHWESTERN UNIVERSITY FEINBERG MEDICAL SCHOOL
Graduated 1984 (42 years in practice)
Group practice Northwestern Medical Faculty Foundation — 4394 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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